{"id":540,"date":"2023-09-16T16:12:01","date_gmt":"2023-09-16T08:12:01","guid":{"rendered":""},"modified":"2023-09-17T00:41:54","modified_gmt":"2023-09-16T16:41:54","slug":"%e3%80%90%e5%a4%9a%e7%ba%bf%e7%a8%8b%e3%80%91%e7%ba%bf%e7%a8%8b%e5%90%8c%e6%ad%a5","status":"publish","type":"post","link":"https:\/\/mushiming.com\/540.html","title":{"rendered":"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65"},"content":{"rendered":"<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"display: none;\"> \n <path stroke-linecap=\"round\" d=\"M5,0 0,2.5 5,5z\" id=\"raphael-marker-block\" style=\"-webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"><\/path> \n<\/svg> <\/p>\n<h1>\u4e00\uff0c\u7ebf\u7a0b\u540c\u6b65\u673a\u5236\u7b80\u4ecb<\/h1>\n<p>\u7ebf\u7a0b\u540c\u6b65\u673a\u5236\u662f\u4e00\u5957\u7528\u4e8e\u534f\u8c03\u7ebf\u7a0b\u4e4b\u95f4\u6570\u636e\u8bbf\u95ee\u7684\u673a\u5236\uff0c\u8be5\u673a\u5236\u53ef\u4ee5\u4fdd\u969c\u7ebf\u7a0b\u5b89\u5168\u3002<br \/> Java\u5e73\u53f0\u63d0\u4f9b\u7684\u7ebf\u7a0b\u540c\u6b65\u673a\u5236\u5305\u62ec\uff1a\u9501\uff0cvolatile\u5173\u952e\u5b57\uff0cfinal\u5173\u952e\u5b57\uff0cstatic\u5173\u952e\u5b57\uff0c\u4ee5\u53ca\u76f8\u5173\u7684API\uff0c\u5982Object.wait()\/Object.notify()\u7b49\u3002<\/p>\n<h1>\u4e8c\uff0c\u9501\u6982\u8ff0<\/h1>\n<p>\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898\u7684\u4ea7\u751f\u524d\u63d0\u662f\u591a\u4e2a\u7ebf\u7a0b\u5e76\u53d1\u8bbf\u95ee\u5171\u4eab\u6570\u636e\u3002<br \/> \u5c06\u591a\u4e2a\u7ebf\u7a0b\u5bf9\u5171\u4eab\u6570\u636e\u7684\u5e76\u53d1\u8bbf\u95ee\u8f6c\u6362\u4e3a\u4e32\u884c\u8bbf\u95ee\uff0c\u5373\u4e00\u4e2a\u5171\u4eab\u6570\u636e\u4e00\u6b21\u53ea\u80fd\u88ab\u4e00\u4e2a\u7ebf\u7a0b\u8bbf\u95ee\u3002\u6240\u5c31\u662f\u590d\u7528\u8fd9\u79cd\u601d\u8def\u6765\u4fdd\u969c\u7ebf\u7a0b\u5b89\u5168\u7684\u3002<br \/> \u9501\uff08Lock\uff09\u53ef\u4ee5\u7406\u89e3\u4e3a\u5bf9\u5171\u4eab\u6570\u636e\u8fdb\u884c\u4fdd\u62a4\u7684\u4e00\u4e2a\u8bb8\u53ef\u8bc1\uff0c\u5bf9\u4e8e\u540c\u4e00\u4e2a\u8bb8\u53ef\u8bc1\u4fdd\u62a4\u7684\u5171\u4eab\u6570\u636e\u6765\u8bf4\uff0c\u4efb\u4f55\u7ebf\u7a0b\u60f3\u8981\u8bbf\u95ee\u8fd9\u4e9b\u5171\u4eab\u6570\u636e\u5fc5\u987b\u5148\u6301\u6709\u8be5\u8bb8\u53ef\u8bc1\u3002\u4e00\u4e2a\u7ebf\u7a0b\u53ea\u6709\u5728\u6301\u6709\u8bb8\u53ef\u8bc1\u7684\u60c5\u51b5\u4e0b\u624d\u80fd\u5bf9\u8fd9\u4e9b\u5171\u4eab\u6570\u636e\u8fdb\u884c\u8bbf\u95ee\u5e76\u4e14\u4e00\u4e2a\u8bb8\u53ef\u8bc1\u4e00\u6b21\u53ea\u80fd\u88ab\u4e00\u4e2a\u7ebf\u7a0b\u6301\u6709\uff1b\u8bb8\u53ef\u8bc1\u7ebf\u7a0b\u5728\u7ed3\u675f\u5bf9\u5171\u4eab\u6570\u636e\u7684\u8bbf\u95ee\u540e\u5fc5\u987b\u91ca\u653e\u5176\u6301\u6709\u7684\u8bb8\u53ef\u8bc1\u3002<br \/> \u4e00\u4e2a\u7ebf\u7a0b\u5728\u8bbf\u95ee\u5171\u4eab\u6570\u636e\u524d\u5fc5\u987b\u5148\u83b7\u5f97\u9501\uff1b\u83b7\u5f97\u9501\u7684\u7ebf\u7a0b\u79f0\u4e3a\u9501\u7684\u6301\u6709\u7ebf\u7a0b\uff1b\u4e00\u4e2a\u9501\u4e00\u6b21\u53ea\u80fd\u88ab\u4e00\u4e2a\u7ebf\u7a0b\u6301\u6709\u3002\u9501\u7684\u6301\u6709\u7ebf\u7a0b\u5728\u83b7\u5f97\u9501\u4e4b\u540e\u548c\u91ca\u653e\u9501\u4e4b\u524d\u8fd9\u6bb5\u65f6\u95f4\u6240\u6267\u884c\u7684\u4ee3\u7801\u88ab\u79f0\u4e3a\u4e34\u754c\u533a\uff08Critical Section\uff09\u3002<br \/> \u9501\u5177\u6709\u6392\u4ed6\u6027\uff08Exclusive\uff09\uff0c\u5373\u4e00\u4e2a\u9501\u4e00\u6b21\u53ea\u80fd\u88ab\u4e00\u4e2a\u7ebf\u7a0b\u6301\u6709\u3002\u8fd9\u79cd\u9501\u79f0\u4e3a\u6392\u4ed6\u9501\u6216\u4e92\u65a5\u9501\uff08Mutex\uff09\u3002<br \/> <img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/82d703b67cdf4640a902a33cde608dd8.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c1\u5f20\" title=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 \u6280\u672f\u535a\u5ba2 \u7b2c1\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> JVM\u628a\u9501\u5206\u4e3a\u5185\u90e8\u9501\u548c\u663e\u793a\u9501\u4e24\u79cd\u3002\u5185\u90e8\u9501\u901a\u8fc7synchronized\u5173\u952e\u5b57\u5b9e\u73b0\uff1b\u663e\u793a\u9501\u901a\u8fc7java.concurrent.locks.Lock\u63a5\u53e3\u7684\u5b9e\u73b0\u7c7b\u5b9e\u73b0\u7684\u3002<\/p>\n<h2>1\uff0c\u9501\u7684\u4f5c\u7528<\/h2>\n<p>\u9501\u53ef\u4ee5\u5b9e\u73b0\u5bf9\u5171\u4eab\u6570\u636e\u7684\u5b89\u5168\u8bbf\u95ee\u3002\u4fdd\u969c\u7ebf\u7a0b\u7684\u539f\u5b50\u6027\uff0c\u53ef\u89c1\u6027\u4e0e\u6709\u5e8f\u6027\u3002<br \/> \u9501\u662f\u901a\u8fc7\u4e92\u65a5\u4fdd\u969c\u539f\u5b50\u6027\u3002\u4e00\u4e2a\u9501\u53ea\u80fd\u88ab\u4e00\u4e2a\u7ebf\u7a0b\u6301\u6709\uff0c\u8fd9\u5c31\u4fdd\u8bc1\u4e34\u8857\u533a\u7684\u4ee3\u7801\u4e00\u6b21\u53ea\u80fd\u88ab\u4e00\u4e2a\u7ebf\u7a0b\u6267\u884c\u3002\u4f7f\u5f97\u4e34\u754c\u533a\u4ee3\u7801\u6240\u6267\u884c\u7684\u64cd\u4f5c\u81ea\u7136\u800c\u7136\u7684\u5177\u6709\u4e0d\u53ef\u5206\u5272\u7684\u7279\u6027\uff0c\u5373\u5177\u5907\u4e86\u539f\u5b50\u6027\u3002<br \/> \u53ef\u89c1\u6027\u7684\u4fdd\u969c\u662f\u901a\u8fc7\u5199\u7ebf\u7a0b\u51b2\u5237\u5904\u7406\u5668\u7684\u7f13\u5b58\u548c\u8bfb\u7ebf\u7a0b\u5237\u65b0\u5904\u7406\u5668\u7f13\u5b58\u8fd9\u4e24\u4e2a\u52a8\u4f5c\u5b9e\u73b0\u7684\u3002\u5728Java\u5e73\u53f0\u4e2d\uff0c\u9501\u7684\u83b7\u5f97\u9690\u542b\u7740\u5237\u65b0\u5904\u7406\u5668\u7f13\u5b58\u7684\u52a8\u4f5c\uff0c\u9501\u7684\u91ca\u653e\u9690\u542b\u7740\u51b2\u5237\u5904\u7406\u5668\u7f13\u5b58\u7684\u52a8\u4f5c\u3002<br \/> \u9501\u80fd\u591f\u4fdd\u969c\u6709\u5e8f\u6027\u3002\u5199\u7ebf\u7a0b\u5728\u4e34\u754c\u533a\u6240\u6267\u884c\u7684\u5728\u8bfb\u7ebf\u7a0b\u6240\u6267\u884c\u7684\u4e34\u754c\u533a\u770b\u6765\u50cf\u662f\u5b8c\u5168\u6309\u7167\u6e90\u7801\u987a\u5e8f\u6267\u884c\u7684\u3002<br \/> \u6ce8\u610f\uff01\u5728\u4f7f\u7528\u9501\u4fdd\u969c\u7ebf\u7a0b\u5b89\u5168\u6027\uff0c\u5fc5\u987b\u6ee1\u8db3\u4ee5\u4e0b\u6761\u4ef6\uff1a<\/p>\n<ul>\n<li>\u8fd9\u4e9b\u7ebf\u7a0b\u5728\u8bbf\u95ee\u5171\u4eab\u6570\u636e\u65f6\u5fc5\u987b\u4f7f\u7528\u7edf\u4e00\u4e2a\u9501\uff1b<\/li>\n<li>\u5373\u4f7f\u662f\u8bfb\u53d6\u5171\u4eab\u6570\u636e\u7684\u7ebf\u7a0b\u4e5f\u9700\u8981\u4f7f\u7528\u540c\u6b65\u9501\u3002<\/li>\n<\/ul>\n<h2>2\uff0c\u9501\u7684\u76f8\u5173\u6982\u5ff5<\/h2>\n<p>1\uff09\u53ef\u91cd\u5165\u6027<br \/> \u53ef\u91cd\u5165\u6027\u63cf\u8ff0\u8fd9\u6837\u4e00\u4e2a\u95ee\u9898\uff1a\u4e00\u4e2a\u7ebf\u7a0b\u6301\u6709\u8be5\u9501\u7684\u65f6\u5019\u80fd\u5426\u518d\u6b21\uff08\u591a\u6b21\uff09\u7533\u8bf7\u8be5\u9501<\/p>\n<pre><code class=\"prism language-java\"><span class=\"token keyword\">void<\/span> <span class=\"token function\">methodA<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    \u7533\u8bf7a\u9501\n    <span class=\"token function\">methodB<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    \u91ca\u653ea\u9501\n<span class=\"token punctuation\">}<\/span>\n\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">methodB<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n\t\u7533\u8bf7a\u9501\n\t<span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span><span class=\"token punctuation\">.<\/span>\n\t\u91ca\u653ea\u9501\n<\/code><\/pre>\n<p>\u5982\u679c\u4e00\u4e2a\u7ebf\u7a0b\u6301\u6709\u4e00\u4e2a\u9501\u7684\u65f6\u5019\u8fd8\u80fd\u591f\u7ee7\u7eed\u6210\u529f\u7533\u8bf7\u8be5\u9501\uff0c\u79f0\u8be5\u9501\u662f\u53ef\u91cd\u5165\u7684\uff0c\u5426\u5219\u5c31\u79f0\u8be5\u9501\u4e3a\u4e0d\u53ef\u91cd\u5165\u7684\u3002<br \/> 2\uff09\u9501\u7684\u4e89\u7528\u4e0e\u8c03\u5ea6<br \/> Java\u5e73\u53f0\u4e2d\u5185\u90e8\u9501\u5c5e\u4e8e\u975e\u516c\u5e73\u9501\uff0c\u663e\u793aLock\u9501\u65e2\u652f\u6301\u516c\u5e73\u9501\u53c8\u652f\u6301\u975e\u516c\u5e73\u9501\u3002<br \/> 3\uff09\u9501\u7684\u7c92\u5ea6<br \/> \u4e00\u4e2a\u9501\u53ef\u4ee5\u4fdd\u62a4\u7684\u5171\u4eab\u6570\u636e\u7684\u6570\u91cf\u5927\u5c0f\u79f0\u4e3a\u9501\u7684\u7c92\u5ea6\u3002<br \/> \u9501\u4fdd\u62a4\u5171\u4eab\u6570\u636e\u91cf\u5927\uff0c\u79f0\u8be5\u9501\u7684\u7c92\u5ea6\u7c97\uff0c\u5426\u5219\u5c31\u79f0\u8be5\u9501\u7684\u7c92\u5ea6\u7ec6\u3002<br \/> \u9501\u7684\u7c92\u5ea6\u8fc7\u7c97\u4f1a\u5bfc\u81f4\u7ebf\u7a0b\u5728\u7533\u8bf7\u9501\u65f6\u4f1a\u8fdb\u884c\u4e0d\u5fc5\u8981\u7684\u7b49\u5f85\u3002\u9501\u7684\u7c92\u5ea6\u8fc7\u7ec6\u4f1a\u589e\u52a0\u9501\u8c03\u5ea6\u7684\u5f00\u9500<\/p>\n<h1>\u4e09\uff0c\u5185\u90e8\u9501\uff1asynchronized\u5173\u952e\u5b57<\/h1>\n<p>Java\u4e2d\u7684\u6bcf\u4e2a\u5bf9\u8c61\u90fd\u6709\u4e00\u4e2a\u4e0e\u4e4b\u5173\u8054\u7684\u5185\u90e8\u9501\uff08Intrinsic lock\uff09\uff0c\u8fd9\u79cd\u9501\u4e5f\u79f0\u4e3a\u76d1\u89c6\u5668\uff08Monitor\uff09\uff0c\u8fd9\u79cd\u5185\u90e8\u9501\u662f\u4e00\u79cd\u6392\u4ed6\u9501\uff0c\u53ef\u4ee5\u4fdd\u969c\u539f\u5b50\u6027\uff0c\u53ef\u89c1\u6027\u4e0e\u6709\u5e8f\u6027\u3002<br \/> \u5185\u90e8\u9501\u662f\u901a\u8fc7synchronized\u5173\u952e\u5b57\u5b9e\u73b0\u7684\u3002synchronized\u5173\u952e\u5b57\u4fee\u9970\u4ee3\u7801\u5757\uff0c\u4fee\u9970\u8be5\u65b9\u6cd5\u3002<br \/> \u4fee\u9970\u4ee3\u7801\u5757\u7684\u8bed\u6cd5\uff1a<\/p>\n<pre><code class=\"prism language-java\"><span class=\"token keyword\">synchronized<\/span><span class=\"token punctuation\">(<\/span>\u5bf9\u8c61\u9501<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n\t\u540c\u6b65\u4ee3\u7801\u5757\uff0c\u53ef\u4ee5\u5728\u540c\u6b65\u4ee3\u7801\u5757\u4e2d\u8bbf\u95ee\u5171\u4eab\u6570\u636e\n<span class=\"token punctuation\">}<\/span>\n<\/code><\/pre>\n<p>\u4fee\u9970\u5b9e\u4f8b\u65b9\u6cd5\u5c31\u79f0\u4e3a\u540c\u6b65\u5b9e\u4f8b\u65b9\u6cd5\u3002<br \/> \u4fee\u9970\u9759\u6001\u65b9\u6cd5\u5c31\u79f0\u4e3a\u540c\u6b65\u9759\u6001\u65b9\u6cd5\u3002<\/p>\n<h2>1\uff0c\u540c\u6b65\u5b9e\u4f8b\u65b9\u6cd5<\/h2>\n<p><strong>\u6ca1\u52a0\u9501<\/strong><\/p>\n<pre><code class=\"prism language-java\"><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TestSynchronized01<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token comment\">\/\/\u521b\u5efa\u4e24\u4e2a\u7ebf\u7a0b\uff0c\u5206\u522b\u8c03\u7528setNumber()\u65b9\u6cd5<\/span>\n        <span class=\"token comment\">\/\/\u5148\u521b\u5efaTest01\u5bf9\u8c61\uff0c\u901a\u8fc7\u5bf9\u8c61\u540d\u8c03\u7528setNumber()\u65b9\u6cd5<\/span>\n        <span class=\"token class-name\">TestSynchronized01<\/span> t <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">TestSynchronized01<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span>t<span class=\"token operator\">::<\/span><span class=\"token function\">setNumber<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  \n\n        <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span>t<span class=\"token operator\">::<\/span><span class=\"token function\">setNumber<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\n    <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token comment\">\/\/\u5b9a\u4e49\u65b9\u6cd5\uff0c\u6253\u5370100\u884c\u5b57\u7b26\u7a9c<\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">setNumber<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">=<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;=<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token string\">\"--&gt;\"<\/span> <span class=\"token operator\">+<\/span> i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n<span class=\"token punctuation\">}<\/span>\n<\/code><\/pre>\n<p>\u6ca1\u52a0\u9501\u65f6\uff0c\u7ed3\u679c\u5982\u4e0b\uff0c\u4e24\u4e2a\u7ebf\u7a0b\u5b58\u5728\u4ea4\u4e92\u7684\u73b0\u8c61\u3002<br \/> <img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/7b3ffbafc30141618dabd75846bdd0f7.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c2\u5f20\" title=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 \u6280\u672f\u535a\u5ba2 \u7b2c2\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><\/p>\n<p><strong>\u52a0\u9501<\/strong><\/p>\n<pre><code class=\"prism language-java\"><span class=\"token comment\">\/** * synchronized\u540c\u6b65\u5b9e\u4f8b\u65b9\u6cd5 * \u628a\u6574\u4e2a\u65b9\u6cd5\u4f53\u4f5c\u4e3a\u540c\u6b65\u4ee3\u7801\u5757 * \u9ed8\u8ba4\u7684\u9501\u5bf9\u8c61\u662fthis\u5bf9\u8c61 *\/<\/span>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TestSynchronized01<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token comment\">\/\/\u521b\u5efa\u4e24\u4e2a\u7ebf\u7a0b\uff0c\u5206\u522b\u8c03\u7528setNumber()\u65b9\u6cd5<\/span>\n        <span class=\"token comment\">\/\/\u5148\u521b\u5efaTest01\u5bf9\u8c61\uff0c\u901a\u8fc7\u5bf9\u8c61\u540d\u8c03\u7528setNumber()\u65b9\u6cd5<\/span>\n        <span class=\"token class-name\">TestSynchronized01<\/span> t <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">TestSynchronized01<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span>t<span class=\"token operator\">::<\/span><span class=\"token function\">setNumber<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/\u4f7f\u7528\u7684\u9501\u5bf9\u8c61this\u5c31\u662ft<\/span>\n\n        <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span>t<span class=\"token operator\">::<\/span><span class=\"token function\">setNumber<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/\u4f7f\u7528\u7684\u9501\u5bf9\u8c61this\u5c31\u662ft<\/span>\n\n    <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token comment\">\/\/\u5b9a\u4e49\u65b9\u6cd5\uff0c\u6253\u5370100\u884c\u5b57\u7b26\u7a9c<\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">setNumber<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span> <span class=\"token comment\">\/\/\u7ecf\u5e38\u4f7f\u7528this\u5f53\u524d\u5bf9\u8c61\u4f5c\u4e3a\u9501\u5bf9\u8c61<\/span>\n            <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">=<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;=<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token string\">\"--&gt;\"<\/span> <span class=\"token operator\">+<\/span> i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n            <span class=\"token punctuation\">}<\/span>\n        <span class=\"token punctuation\">}<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n<span class=\"token punctuation\">}<\/span>\n<\/code><\/pre>\n<p>\u52a0\u9501\u540e\uff0c\u5219\u662f\u5148\u6267\u884c\u5b8c\u4e00\u4e2a\u7ebf\u7a0b\u540e\uff0c\u5728\u6267\u884c\u53e6\u4e00\u4e2a\u7ebf\u7a0b<br \/> <img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/4c1fb7dbf3834598bf9981c275d276da.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c3\u5f20\" title=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 \u6280\u672f\u535a\u5ba2 \u7b2c3\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><\/p>\n<p>\u7b2c\u4e00\u4e2a\u7ebf\u7a0b\u4e3aThread-0,\u7b2c\u4e8c\u4e2a\u7ebf\u7a0b\u4e3aThread-1<br \/> 1\uff09\u5047\u8bbeThread-0\u7ebf\u7a0b\u83b7\u53d6CPU\u6267\u884c\u6743<br \/> \u8c03\u7528t\u5bf9\u8c61\u7684setNumber()\u65b9\u6cd5\uff0c<br \/> \u6267\u884c\u65b9\u6cd5\u4f53\uff0c\u5148\u83b7\u5f97this\u5bf9\u8c61\u7684object\u7684\u9501<br \/> \u6267\u884cfor\u5faa\u73af\uff1b<br \/> 2\uff09\u5047\u8bbeThread-0\u5728\u6267\u884cfor\u5faa\u73af\u671f\u95f4\uff0cThread-1\u7ebf\u7a0b\u83b7\u5f97\u4e86CPU\u6267\u884c\u6743<br \/> \u8c03\u7528t\u5bf9\u8c61\u7684setNumber()\u65b9\u6cd5\uff0c<br \/> \u6267\u884c\u65b9\u6cd5\u4f53\uff0c\u5148\u83b7\u5f97this\u5bf9\u8c61t\u7684\u9501\uff1b<\/p>\n<p>\u73b0\u5728Thread-0\u7ebf\u7a0b\u6301\u6709this\u5bf9\u8c61t\u7684\u9501\uff0csynchronized\u5185\u90e8\u9501\u662f\u6392\u4ed6\u9501\uff0c\u53ea\u80fd\u88ab\u4e00\u4e2a\u7ebf\u7a0b\u6301\u6709\uff0cThread-1\u8fdb\u5165\u7b49\u5f85\u533a\u7b49\u5f85this\u5bf9\u8c61t\u7684\u9501<br \/> 3\uff09\u5f53Thread-0\u7ebf\u7a0b\u91cd\u65b0\u83b7\u5f97CPU\u6267\u884c\u6743\uff0c\u628afor\u5faa\u73af\u6267\u884c\u5b8c\uff0c\u5373\u6267\u884c\u5b8c\u540c\u6b65\u4ee3\u7801\u5757\uff0cThread-0\u7ebf\u7a0b\u4f1a\u91ca\u653ethis\u5bf9\u8c61t\u7684\u9501\uff1b<br \/> 4\uff09\u7b49\u5f85\u533a\u7684Thread-1\u7ebf\u7a0b\u83b7\u5f97this\u5bf9\u8c61t\u7684\u9501\u3002<\/p>\n<p><strong>\u4f7f\u7528\u5e38\u91cf\u4f5c\u4e3a\u9501\u5bf9\u8c61<\/strong><\/p>\n<pre><code class=\"prism language-java\"><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TestSynchronized02<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token class-name\">TestSynchronized02<\/span> t <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">TestSynchronized02<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token class-name\">TestSynchronized02<\/span> t2 <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">TestSynchronized02<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span>t<span class=\"token operator\">::<\/span><span class=\"token function\">setNumber<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/\u4f7f\u7528\u7684\u9501\u5bf9\u8c61this\u5c31\u662ft<\/span>\n\n        <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span>t2<span class=\"token operator\">::<\/span><span class=\"token function\">setNumber<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/\u4f7f\u7528\u7684\u9501\u5bf9\u8c61this\u5c31\u662ft2<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">Object<\/span> OBJ <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Object<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>    <span class=\"token comment\">\/\/\u5b9a\u4e49\u4e00\u4e2a\u5e38\u91cf<\/span>\n\n    <span class=\"token comment\">\/\/\u5b9a\u4e49\u65b9\u6cd5\uff0c\u6253\u5370100\u884c\u5b57\u7b26\u7a9c<\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">setNumber<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span>OBJ<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span> <span class=\"token comment\">\/\/\u7ecf\u5e38\u4f7f\u7528this\u5f53\u524d\u5bf9\u8c61\u4f5c\u4e3a\u9501\u5bf9\u8c61<\/span>\n            <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">=<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;=<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token string\">\"--&gt;\"<\/span> <span class=\"token operator\">+<\/span> i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n            <span class=\"token punctuation\">}<\/span>\n        <span class=\"token punctuation\">}<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n<span class=\"token punctuation\">}<\/span>\n<\/code><\/pre>\n<p>\u5373\u4f7f\u662f\u521b\u5efa\u4e24\u4e2a\u5bf9\u8c61\uff0c\u4e5f\u4f1a\u5b9e\u73b0\u540c\u6b65\u9501\u7684\u529f\u80fd\u3002<br \/> <img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/372ca4c713c549858a1325c407b6e949.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c4\u5f20\" title=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 \u6280\u672f\u535a\u5ba2 \u7b2c4\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> <strong>\u4fee\u9970\u65b9\u6cd5<\/strong><\/p>\n<pre><code class=\"prism language-java\"><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TestSynchronized03<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token class-name\">TestSynchronized03<\/span> t <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">TestSynchronized03<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span>t<span class=\"token operator\">::<\/span><span class=\"token function\">setNumber<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span>t<span class=\"token operator\">::<\/span><span class=\"token function\">setNumber2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">setNumber<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span> <span class=\"token comment\">\/\/\u7ecf\u5e38\u4f7f\u7528this\u5f53\u524d\u5bf9\u8c61\u4f5c\u4e3a\u9501\u5bf9\u8c61<\/span>\n            <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">=<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;=<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token string\">\"--&gt;\"<\/span> <span class=\"token operator\">+<\/span> i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n            <span class=\"token punctuation\">}<\/span>\n        <span class=\"token punctuation\">}<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token comment\">\/\/\u4f7f\u7528synchronized\u4fee\u9970\u5b9e\u4f8b\u65b9\u6cd5\uff0c\u540c\u6b65\u5b9e\u4f8b\u65b9\u6cd5\uff0c\u9ed8\u8ba4this\u4f5c\u4e3a\u9501\u5bf9\u8c61<\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">synchronized<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">setNumber2<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">=<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;=<\/span> <span class=\"token number\">200<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token string\">\" --&gt; \"<\/span> <span class=\"token operator\">+<\/span> i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n<span class=\"token punctuation\">}<\/span>\n<\/code><\/pre>\n<p>\u4fee\u9970\u65b9\u6cd5\u6548\u679c\u4e00\u6837<br \/> <img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/e4459d1fe7584d0c8043a0aae2ddb31c.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c5\u5f20\" title=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 \u6280\u672f\u535a\u5ba2 \u7b2c5\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><\/p>\n<h2>2\uff0c\u540c\u6b65\u9759\u6001\u65b9\u6cd5<\/h2>\n<pre><code class=\"prism language-java\"><span class=\"token comment\">\/** * synchronized\u540c\u6b65\u9759\u6001\u65b9\u6cd5 * \u628a\u6574\u4e2a\u65b9\u6cd5\u4f5c\u4e3a\u540c\u6b65\u4ee3\u7801\u5757 * \u9ed8\u8ba4\u7684\u9501\u5bf9\u8c61\u662f\u5f53\u524d\u7c7b\u7684\u8fd0\u884c\u65f6\u7c7b\u5bf9\u8c61 *\/<\/span>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TestSynchronized04<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token class-name\">TestSynchronized04<\/span> t <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">TestSynchronized04<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span>t<span class=\"token operator\">::<\/span><span class=\"token function\">setNumber<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">TestSynchronized04<\/span><span class=\"token operator\">::<\/span><span class=\"token function\">setNumber2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">setNumber<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token comment\">\/\/\u4f7f\u7528\u5f53\u524d\u7c7b\u7684\u8fd0\u884c\u65f6\u7c7b\u5bf9\u8c61\u4f5c\u4e3a\u9501\u5bf9\u8c61\uff0c\u53ef\u4ee5\u7b80\u5355\u7684\u7406\u89e3\u4e3a\u628a\u5f53\u524d\u7c7b\u7684\u5b57\u8282\u7801\u6587\u4ef6\u4f5c\u4e3a\u9501\u5bf9\u8c61<\/span>\n        <span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">TestSynchronized04<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">=<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;=<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token string\">\" -- &gt; \"<\/span> <span class=\"token operator\">+<\/span> i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n            <span class=\"token punctuation\">}<\/span>\n        <span class=\"token punctuation\">}<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token comment\">\/\/\u4f7f\u7528synchronized\u4fee\u9970\u9759\u6001\u65b9\u6cd5\uff0c\u540c\u6b65\u9759\u6001\u65b9\u6cd5\uff0c\u9ed8\u8ba4\u8fd0\u884c\u65f6\u7c7b\u4f5c\u4e3a\u5bf9\u8c61<\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">synchronized<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">setNumber2<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">=<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;=<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token string\">\" -- &gt; \"<\/span> <span class=\"token operator\">+<\/span> i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n<span class=\"token punctuation\">}<\/span>\n<\/code><\/pre>\n<p>synchronized\u4fee\u9970\u9759\u6001\u65b9\u6cd5\uff0c\u9ed8\u8ba4\u8fd0\u884c\u65f6\u7c7b\u4f5c\u4e3a\u5bf9\u8c61\uff0c\u6240\u4ee5\u540c\u6837\u662f\u540c\u6b65\u7684<br \/> <img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/fe73147f918a40fe82d356a568c7da14.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c6\u5f20\" title=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 \u6280\u672f\u535a\u5ba2 \u7b2c6\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><\/p>\n<h2>3\uff0c\u540c\u6b65\u65b9\u6cd5\u4e0e\u540c\u6b65\u4ee3\u7801<\/h2>\n<p><strong>\u540c\u6b65\u4ee3\u7801\u4ee3\u7801\u5757<\/strong><\/p>\n<pre><code class=\"prism language-java\"><span class=\"token comment\">\/** * \u540c\u6b65\u65b9\u6cd5\u4e0e\u540c\u6b65\u4ee3\u7801\u5757\u5982\u4f55\u6289\u62e9 *\/<\/span>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TestSynchronized05<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token class-name\">TestSynchronized05<\/span> t <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">TestSynchronized05<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span>t<span class=\"token operator\">::<\/span><span class=\"token function\">doLongTimeTask<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span>t<span class=\"token operator\">::<\/span><span class=\"token function\">doLongTimeTask<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n    <span class=\"token comment\">\/\/\u540c\u6b65\u4ee3\u7801\u5757\uff0c\u9501\u7684\u7c92\u5ea6\u7ec6\uff0c\u5e76\u53d1\u6548\u7387\u9ad8<\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">doLongTimeTask<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"Task Begin\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n            <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">3000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>         <span class=\"token comment\">\/\/\u6a21\u62df\u4efb\u52a1\u9700\u8981\u51c6\u59073\u79d2\u949f<\/span>\n            <span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u5f00\u59cb\u540c\u6b65\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n                <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">=<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;=<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token string\">\" --&gt; \"<\/span> <span class=\"token operator\">+<\/span> i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n                <span class=\"token punctuation\">}<\/span>\n            <span class=\"token punctuation\">}<\/span>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"Task End\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            e<span class=\"token punctuation\">.<\/span><span class=\"token function\">printStackTrace<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n<span class=\"token punctuation\">}<\/span>\n<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/e24f25d683b24814a3f52feb36b61365.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c7\u5f20\" title=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 \u6280\u672f\u535a\u5ba2 \u7b2c7\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> <img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/456134437bb74bb2bb026ecfe25e0e8d.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c8\u5f20\" title=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 \u6280\u672f\u535a\u5ba2 \u7b2c8\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u53ef\u89c1\uff0c\u7b2c\u4e00\u4e2a\u7ebf\u7a0b\u6267\u884c\u540e\u5728\u7761\u7720\u7684\u540c\u65f6\u7b2c\u4e8c\u4e2a\u7ebf\u7a0b\u5f00\u59cb\u6267\u884c\u4e86\uff0c\u4f46\u662f\u662f\u5728\u7b2c\u4e00\u4e2a\u7ebf\u7a0b\u7684\u540c\u6b65\u4ee3\u7801\u5757\u6267\u884c\u5b8c\u6210\u540e\uff0c\u7b2c\u4e8c\u4e2a\u7ebf\u7a0b\u624d\u5f00\u59cb\u6267\u884c\u540c\u6b65\u4ee3\u7801\u5757\u7684\u5185\u5bb9\u3002<\/p>\n<p><strong>\u540c\u6b65\u65b9\u6cd5<\/strong><\/p>\n<pre><code class=\"prism language-java\"><span class=\"token comment\">\/** * \u540c\u6b65\u65b9\u6cd5\u4e0e\u540c\u6b65\u4ee3\u7801\u5757\u5982\u4f55\u6289\u62e9 *\/<\/span>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TestSynchronized05<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token class-name\">TestSynchronized05<\/span> t <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">TestSynchronized05<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span>t<span class=\"token operator\">::<\/span><span class=\"token function\">doLongTimeTask2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span>t<span class=\"token operator\">::<\/span><span class=\"token function\">doLongTimeTask2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token comment\">\/\/\u540c\u6b65\u65b9\u6cd5\uff0c\u9501\u7684\u7c92\u5ea6\u7c97\uff0c\u5e76\u53d1\u6548\u7387\u4f4e<\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">synchronized<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">doLongTimeTask2<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"Task Begin\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n            <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">3000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>         <span class=\"token comment\">\/\/\u6a21\u62df\u4efb\u52a1\u9700\u8981\u51c6\u59073\u79d2\u949f<\/span>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u5f00\u59cb\u540c\u6b65\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n            <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">=<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;=<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token string\">\" --&gt; \"<\/span> <span class=\"token operator\">+<\/span> i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n            <span class=\"token punctuation\">}<\/span>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"Task End\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            e<span class=\"token punctuation\">.<\/span><span class=\"token function\">printStackTrace<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n<span class=\"token punctuation\">}<\/span>\n<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/f264f5bfa63748fb871805b560b49809.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c9\u5f20\" title=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 \u6280\u672f\u535a\u5ba2 \u7b2c9\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> <img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/2a4b6affedb34ce199668d14343a73e6.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c10\u5f20\" title=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 \u6280\u672f\u535a\u5ba2 \u7b2c10\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u53ef\u89c1\u540c\u6b65\u65b9\u6cd5\uff0c\u662f\u5728\u7b2c\u4e00\u4e2a\u7ebf\u7a0b\u5b8c\u5168\u6267\u884c\u5b8c\u540e\uff0c\u624d\u5f00\u59cb\u6267\u884c\u7b2c\u4e8c\u4e2a\u7ebf\u7a0b\uff0c\u90a3\u4e48\u7b2c\u4e00\u4e2a\u7ebf\u7a0b\u7761\u7720\u76843s\u5c31\u767d\u767d\u6d6a\u8d39\u4e86<\/p>\n<p>\u7531\u6b64\u53ef\u4ee5\u5f97\u51fa\u7ed3\u8bba\uff1a\u540c\u6b65\u4ee3\u7801\u5757\uff0c\u9501\u7684\u7c92\u5ea6\u7ec6\uff0c\u5e76\u53d1\u6548\u7387\u9ad8\uff1b\u540c\u6b65\u65b9\u6cd5\uff0c\u9501\u7684\u7c92\u5ea6\u7c97\uff0c\u5e76\u53d1\u6548\u7387\u4f4e\u3002<\/p>\n<h2>4\uff0c\u810f\u8bfb<\/h2>\n<pre><code class=\"prism language-java\"><span class=\"token comment\">\/** * \u810f\u8bfb * \u51fa\u73b0\u8bfb\u53d6\u5c5e\u6027\u503c\u51fa\u73b0\u4e86\u4e00\u4e9b\u610f\u5916\uff0c\u8bfb\u53d6\u7684\u662f\u4e2d\u95f4\u503c\uff0c\u800c\u4e0d\u662f\u4fee\u6539\u4e4b\u540e\u7684\u503c * \u51fa\u73b0\u810f\u8bfb\u7684\u539f\u56e0\u662f\u5bf9\u5171\u4eab\u6570\u636e\u7684\u4fee\u6539\u4e0e\u5bf9\u5171\u4eab\u6570\u636e\u7684\u8bfb\u53d6\u4e0d\u540c\u6b65 * \u89e3\u51b3\u65b9\u6cd5\uff1a * \u4e0d\u4ec5\u5bf9\u4fee\u6539\u6570\u636e\u7684\u4ee3\u7801\u5757\u8fdb\u884c\u540c\u6b65\uff0c\u8fd8\u8981\u5bf9\u8bfb\u53d6\u6570\u636e\u7684\u4ee3\u7801\u8fdb\u884c\u540c\u6b65 *\/<\/span>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TestDirtyRead01<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">InterruptedException<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token comment\">\/\/\u5f00\u542f\u5b50\u7ebf\u7a0b\u8bbe\u7f6e\u7528\u6237\u540d\u548c\u5bc6\u7801<\/span>\n        <span class=\"token class-name\">PublicValue<\/span> publicValue <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">PublicValue<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token class-name\">SubThread<\/span> t1 <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">SubThread<\/span><span class=\"token punctuation\">(<\/span>publicValue<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        t1<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token comment\">\/\/\u4e3a\u4e86\u786e\u5b9a\u8bbe\u7f6e\u6210\u529f<\/span>\n        <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token comment\">\/\/\u5728main\u7ebf\u7a0b\u4e2d\u8bfb\u53d6\u7528\u6237\u540d\uff0c\u5bc6\u7801<\/span>\n        publicValue<span class=\"token punctuation\">.<\/span><span class=\"token function\">getValue<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">SubThread<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">Thread<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">PublicValue<\/span> publicValue<span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">SubThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">PublicValue<\/span> publicValue<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>publicValue <span class=\"token operator\">=<\/span> publicValue<span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n\n        <span class=\"token annotation punctuation\">@Override<\/span>\n        <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">run<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            publicValue<span class=\"token punctuation\">.<\/span><span class=\"token function\">setValue<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"dh\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"123\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">PublicValue<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">String<\/span> name <span class=\"token operator\">=<\/span> <span class=\"token string\">\"drhj\"<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">String<\/span> pwd <span class=\"token operator\">=<\/span> <span class=\"token string\">\"520\"<\/span><span class=\"token punctuation\">;<\/span>\n\n        <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">getValue<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token string\">\", getter -- name: \"<\/span> <span class=\"token operator\">+<\/span> name <span class=\"token operator\">+<\/span> <span class=\"token string\">\", -- pwd: \"<\/span> <span class=\"token operator\">+<\/span> pwd<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n\n        <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">setValue<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> name<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">String<\/span> pwd<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>name <span class=\"token operator\">=<\/span> name<span class=\"token punctuation\">;<\/span>\n            <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>         <span class=\"token comment\">\/\/\u6a21\u62df\u64cd\u4f5cname\u5c5e\u6027\u9700\u8981\u4e00\u5b9a\u65f6\u95f4<\/span>\n            <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                e<span class=\"token punctuation\">.<\/span><span class=\"token function\">printStackTrace<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n            <span class=\"token punctuation\">}<\/span>\n            <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>pwd <span class=\"token operator\">=<\/span> pwd<span class=\"token punctuation\">;<\/span>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token string\">\", setter -- name: \"<\/span> <span class=\"token operator\">+<\/span> name <span class=\"token operator\">+<\/span> <span class=\"token string\">\", -- pwd: \"<\/span> <span class=\"token operator\">+<\/span> pwd<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token punctuation\">}<\/span>\n\n<span class=\"token punctuation\">}<\/span>\n<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/ba20a23e1ffe4d3697c6c9bf17a7cbfc.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c11\u5f20\" title=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 \u6280\u672f\u535a\u5ba2 \u7b2c11\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u51fa\u73b0\u4e86\u810f\u8bfb\u7684\u60c5\u51b5<br \/> \u51fa\u73b0\u8bfb\u53d6\u5c5e\u6027\u503c\u51fa\u73b0\u4e86\u4e00\u4e9b\u610f\u5916\uff0c\u8bfb\u53d6\u7684\u662f\u4e2d\u95f4\u503c\uff0c\u800c\u4e0d\u662f\u4fee\u6539\u4e4b\u540e\u7684\u503c\uff0c\u51fa\u73b0\u810f\u8bfb\u7684\u539f\u56e0\u662f\u5bf9\u5171\u4eab\u6570\u636e\u7684\u4fee\u6539\u4e0e\u5bf9\u5171\u4eab\u6570\u636e\u7684\u8bfb\u53d6\u4e0d\u540c\u6b65\u3002<br \/> \u89e3\u51b3\u65b9\u6cd5\uff1a\u4e0d\u4ec5\u5bf9\u4fee\u6539\u6570\u636e\u7684\u4ee3\u7801\u5757\u8fdb\u884c\u540c\u6b65\uff0c\u8fd8\u8981\u5bf9\u8bfb\u53d6\u6570\u636e\u7684\u4ee3\u7801\u8fdb\u884c\u540c\u6b65<\/p>\n<pre><code class=\"prism language-java\"><span class=\"token comment\">\/** * \u810f\u8bfb * \u51fa\u73b0\u8bfb\u53d6\u5c5e\u6027\u503c\u51fa\u73b0\u4e86\u4e00\u4e9b\u610f\u5916\uff0c\u8bfb\u53d6\u7684\u662f\u4e2d\u95f4\u503c\uff0c\u800c\u4e0d\u662f\u4fee\u6539\u4e4b\u540e\u7684\u503c * \u51fa\u73b0\u810f\u8bfb\u7684\u539f\u56e0\u662f\u5bf9\u5171\u4eab\u6570\u636e\u7684\u4fee\u6539\u4e0e\u5bf9\u5171\u4eab\u6570\u636e\u7684\u8bfb\u53d6\u4e0d\u540c\u6b65 * \u89e3\u51b3\u65b9\u6cd5\uff1a * \u4e0d\u4ec5\u5bf9\u4fee\u6539\u6570\u636e\u7684\u4ee3\u7801\u5757\u8fdb\u884c\u540c\u6b65\uff0c\u8fd8\u8981\u5bf9\u8bfb\u53d6\u6570\u636e\u7684\u4ee3\u7801\u8fdb\u884c\u540c\u6b65 *\/<\/span>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TestDirtyRead01<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">InterruptedException<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token comment\">\/\/\u5f00\u542f\u5b50\u7ebf\u7a0b\u8bbe\u7f6e\u7528\u6237\u540d\u548c\u5bc6\u7801<\/span>\n        <span class=\"token class-name\">PublicValue<\/span> publicValue <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">PublicValue<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token class-name\">SubThread<\/span> t1 <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">SubThread<\/span><span class=\"token punctuation\">(<\/span>publicValue<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        t1<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token comment\">\/\/\u4e3a\u4e86\u786e\u5b9a\u8bbe\u7f6e\u6210\u529f<\/span>\n        <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token comment\">\/\/\u5728main\u7ebf\u7a0b\u4e2d\u8bfb\u53d6\u7528\u6237\u540d\uff0c\u5bc6\u7801<\/span>\n        publicValue<span class=\"token punctuation\">.<\/span><span class=\"token function\">getValue<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">SubThread<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">Thread<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">PublicValue<\/span> publicValue<span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">SubThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">PublicValue<\/span> publicValue<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>publicValue <span class=\"token operator\">=<\/span> publicValue<span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n\n        <span class=\"token annotation punctuation\">@Override<\/span>\n        <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">run<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            publicValue<span class=\"token punctuation\">.<\/span><span class=\"token function\">setValue<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"dh\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"123\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">PublicValue<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">String<\/span> name <span class=\"token operator\">=<\/span> <span class=\"token string\">\"drhj\"<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">String<\/span> pwd <span class=\"token operator\">=<\/span> <span class=\"token string\">\"520\"<\/span><span class=\"token punctuation\">;<\/span>\n\n        <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">synchronized<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">getValue<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token string\">\", getter -- name: \"<\/span> <span class=\"token operator\">+<\/span> name <span class=\"token operator\">+<\/span> <span class=\"token string\">\", -- pwd: \"<\/span> <span class=\"token operator\">+<\/span> pwd<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n\n        <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">synchronized<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">setValue<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> name<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">String<\/span> pwd<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>name <span class=\"token operator\">=<\/span> name<span class=\"token punctuation\">;<\/span>\n            <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>         <span class=\"token comment\">\/\/\u6a21\u62df\u64cd\u4f5cname\u5c5e\u6027\u9700\u8981\u4e00\u5b9a\u65f6\u95f4<\/span>\n            <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                e<span class=\"token punctuation\">.<\/span><span class=\"token function\">printStackTrace<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n            <span class=\"token punctuation\">}<\/span>\n            <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>pwd <span class=\"token operator\">=<\/span> pwd<span class=\"token punctuation\">;<\/span>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token string\">\", setter -- name: \"<\/span> <span class=\"token operator\">+<\/span> name <span class=\"token operator\">+<\/span> <span class=\"token string\">\", -- pwd: \"<\/span> <span class=\"token operator\">+<\/span> pwd<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token punctuation\">}<\/span>\n\n<span class=\"token punctuation\">}<\/span>\n\n<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/01c582f56f624efc984d44914d6a9f89.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c12\u5f20\" title=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 \u6280\u672f\u535a\u5ba2 \u7b2c12\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><\/p>\n<h2>5\uff0c\u5f02\u5e38<\/h2>\n<p>\u5f53\u4e00\u4e2a\u7ebf\u7a0b\u5728\u6267\u884c\u65f6\uff0c\u53d1\u751f\u4e86\u5f02\u5e38\u4f1a\u600e\u4e48\u6837\u5462\uff1f\u5176\u4ed6\u7ebf\u7a0b\u4e00\u76f4\u7b49\u7740\uff1f\u6b7b\u9501\uff1f<\/p>\n<pre><code class=\"prism language-java\"><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TestSynchronized06<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token class-name\">TestSynchronized06<\/span> t <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">TestSynchronized06<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span>t<span class=\"token operator\">::<\/span><span class=\"token function\">setNumber<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span>t<span class=\"token operator\">::<\/span><span class=\"token function\">setNumber2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">setNumber<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">=<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;=<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token string\">\" --&gt; \"<\/span> <span class=\"token operator\">+<\/span> i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n                <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>i <span class=\"token operator\">==<\/span> <span class=\"token number\">50<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                    <span class=\"token class-name\">Integer<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">parseInt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"abc\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n                <span class=\"token punctuation\">}<\/span>\n            <span class=\"token punctuation\">}<\/span>\n        <span class=\"token punctuation\">}<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">synchronized<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">setNumber2<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">=<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;=<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token string\">\" --&gt; \"<\/span> <span class=\"token operator\">+<\/span> i<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n<span class=\"token punctuation\">}<\/span>\n<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/c0fc5da00c2c4b95829266d96fd269e1.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c13\u5f20\" title=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 \u6280\u672f\u535a\u5ba2 \u7b2c13\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> <img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/605e7b59372c4730aeed4d3bc3b3118e.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c14\u5f20\" title=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 \u6280\u672f\u535a\u5ba2 \u7b2c14\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u53ef\u89c1\uff0c\u5728\u9047\u5230\u5f02\u5e38\u65f6\uff0c\u76f4\u63a5\u91ca\u653e\u9501\uff0c\u4e0b\u4e00\u4e2a\u7ebf\u7a0b\u7ee7\u7eed\u6267\u884c\u3002<\/p>\n<h2>6\uff0c\u6b7b\u9501<\/h2>\n<p>\u5728\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u4e2d\uff0c\u540c\u6b65\u65f6\u53ef\u80fd\u9700\u8981\u4f7f\u7528\u591a\u4e2a\u9501\uff0c\u5982\u679c\u83b7\u5f97\u9501\u7684\u987a\u5e8f\u4e0d\u4e00\u81f4\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6b7b\u9501<\/p>\n<pre><code class=\"prism language-java\"><span class=\"token comment\">\/** * \u6b7b\u9501 * \u5728\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u4e2d\uff0c\u540c\u6b65\u65f6\u53ef\u80fd\u9700\u8981\u4f7f\u7528\u591a\u4e2a\u9501\uff0c\u5982\u679c\u83b7\u5f97\u9501\u7684\u987a\u5e8f\u4e0d\u4e00\u81f4\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6b7b\u9501 *\/<\/span>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TestDeadLock<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token class-name\">SubThread<\/span> t1 <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">SubThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token class-name\">SubThread<\/span> t2 <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">SubThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        t1<span class=\"token punctuation\">.<\/span><span class=\"token function\">setName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"a\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        t2<span class=\"token punctuation\">.<\/span><span class=\"token function\">setName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"b\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        t1<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        t2<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">SubThread<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">Thread<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">Object<\/span> lock1 <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Object<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">Object<\/span> lock2 <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Object<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\n        <span class=\"token annotation punctuation\">@Override<\/span>\n        <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">run<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token string\">\"a\"<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">equals<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                <span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span>lock1<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"a\u7ebf\u7a0b\u83b7\u5f97\u4e86lock1\u9501\uff0c\u8fd8\u9700\u8981\u83b7\u5f97lock2\u9501\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n                    <span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span>lock2<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"a\u7ebf\u7a0b\u83b7\u5f97lock1\u9501\u540e\u53c8\u83b7\u5f97\u4e86lock2\uff0c\u53ef\u4ee5\u60f3\u5e72\u4efb\u4f55\u60f3\u5e72\u7684\u4e8b\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n                    <span class=\"token punctuation\">}<\/span>\n                <span class=\"token punctuation\">}<\/span>\n            <span class=\"token punctuation\">}<\/span>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token string\">\"b\"<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">equals<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                <span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span>lock2<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"b\u7ebf\u7a0b\u83b7\u5f97\u4e86lock2\u9501\uff0c\u8fd8\u9700\u8981\u83b7\u5f97lock1\u9501\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n                    <span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span>lock1<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"b\u7ebf\u7a0b\u83b7\u5f97lock2\u540e\u53c8\u83b7\u5f97\u4e86lock1\uff0c\u53ef\u4ee5\u60f3\u5e72\u4efb\u4f55\u60f3\u5e72\u7684\u4e8b\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n                    <span class=\"token punctuation\">}<\/span>\n                <span class=\"token punctuation\">}<\/span>\n            <span class=\"token punctuation\">}<\/span>\n        <span class=\"token punctuation\">}<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n<span class=\"token punctuation\">}<\/span>\n<\/code><\/pre>\n<p>\u7ed3\u679c\u5982\u4e0b\uff1a<br \/> <img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/d9bc512da1874112971844079e156d8c.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c15\u5f20\" title=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 \u6280\u672f\u535a\u5ba2 \u7b2c15\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u90a3\u5982\u4f55\u907f\u514d\u6b7b\u9501\u5462\uff1f<br \/> \u5f53\u9700\u8981\u83b7\u5f97\u591a\u4e2a\u9501\u65f6\uff0c\u6240\u6709\u7ebf\u7a0b\u83b7\u5f97\u9501\u7684\u987a\u5e8f\u4fdd\u6301\u4e00\u81f4\u5373\u53ef\u3002<\/p>\n<h1>\u56db\uff0c\u8f7b\u91cf\u7ea7\u540c\u6b65\u673a\u5236\uff1avolatile\u5173\u952e\u5b57<\/h1>\n<h2>1\uff0cvolatile\u7684\u4f5c\u7528<\/h2>\n<p>volatile\u7684\u4f5c\u7528\u662f\u4f7f\u53d8\u91cf\u5728\u591a\u4e2a\u7ebf\u7a0b\u4e4b\u95f4\u53ef\u89c1\u3002<\/p>\n<pre><code class=\"prism language-java\"><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TestVolatile01<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token class-name\">PrintString<\/span> ps <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">PrintString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">-&gt;<\/span> ps<span class=\"token punctuation\">.<\/span><span class=\"token function\">printStringMethod<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token comment\">\/\/main\u7ebf\u7a0b\u7761\u77201000ms<\/span>\n        <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            e<span class=\"token punctuation\">.<\/span><span class=\"token function\">printStackTrace<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u5728main\u7ebf\u7a0b\u4e2d\u4fee\u6539\u6253\u5370\u6807\u5fd7\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        ps<span class=\"token punctuation\">.<\/span><span class=\"token function\">setContinuePrint<\/span><span class=\"token punctuation\">(<\/span><span class=\"token boolean\">false<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token comment\">\/\/\u7a0b\u5e8f\u8fd0\u884c\uff0c\u67e5\u770b\u5728main\u7ebf\u7a0b\u4e2d\u4fee\u6539\u4e86\u6253\u5370\u6807\u5fd7\u4e4b\u540e\uff0c\u5b50\u7ebf\u7a0b\u6253\u5370\u662f\u5426\u53ef\u4ee5\u7ed3\u675f<\/span>\n        <span class=\"token comment\">\/\/\u7a0b\u5e8f\u8fd0\u884c\u540e\uff0c\u53ef\u80fd\u4f1a\u51fa\u73b0\u6b7b\u5faa\u73af\u60c5\u51b5<\/span>\n        <span class=\"token comment\">\/\/\u5206\u6790\u539f\u56e0\uff1amain\u7ebf\u7a0b\u4fee\u6539\u4e86ps\u5bf9\u8c61\u7684\u6253\u5370\u6807\u5fd7\u540e\uff0c\u5b50\u7ebf\u7a0b\u8bfb\u4e0d\u5230<\/span>\n        <span class=\"token comment\">\/\/\u89e3\u51b3\u529e\u6cd5\uff1a\u4f7f\u7528volatile\u5173\u952e\u5b57\u4fee\u9970<\/span>\n        <span class=\"token comment\">\/\/volatile\u53ef\u4ee5\u5f3a\u5236\u7ebf\u7a0b\u4ece\u516c\u5171\u5185\u5b58\u4e2d\u8bfb\u53d6\u53d8\u91cf\u7684\u503c\uff0c\u800c\u4e0d\u662f\u4ece\u5de5\u4f5c\u5185\u5b58\u4e2d\u8bfb\u53d6<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token comment\">\/\/\u5b9a\u4e49\u4e00\u4e2a\u4eba\u6253\u5370\u5b57\u7b26\u7a9c<\/span>\n    <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">PrintString<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">boolean<\/span> continuePrint <span class=\"token operator\">=<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">PrintString<\/span> <span class=\"token function\">setContinuePrint<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">boolean<\/span> continuePrint<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>continuePrint <span class=\"token operator\">=<\/span> continuePrint<span class=\"token punctuation\">;<\/span>\n            <span class=\"token keyword\">return<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n        <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">printStringMethod<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token string\">\"\u5f00\u59cb....\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n            <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>continuePrint<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token punctuation\">}<\/span>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token string\">\"\u6253\u5370\u7ed3\u675f\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n<span class=\"token punctuation\">}<\/span>\n<\/code><\/pre>\n<p>\u8fd0\u884c\u53d1\u73b0\uff0c\u53ef\u80fd\u4f1a\u5b58\u5728main\u7ebf\u7a0b\u4fee\u6539\u4e86ps\u5bf9\u8c61\u7684\u6253\u5370\u6807\u5fd7\u540e\uff0c\u5b50\u7ebf\u7a0b\u8bfb\u4e0d\u5230\u7684\u60c5\u51b5\uff0c\u5373\u65e0\u6cd5\u8fd0\u884c\u7ed3\u675f<br \/> <img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/6bd8c854d4034916944debc8ab31ebeb.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c16\u5f20\" title=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 \u6280\u672f\u535a\u5ba2 \u7b2c16\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> <img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/1f0c83bd40a742bb9580c78c32af61fe.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c17\u5f20\" title=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 \u6280\u672f\u535a\u5ba2 \u7b2c17\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u5f53\u52a0\u4e86volatile\u540e\uff0c\u8fd0\u884c\u7ed3\u675f\u4e86<br \/> <img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/b9316cd44b1b4f9f98e3c0a1bb02fd66.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c18\u5f20\" title=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 \u6280\u672f\u535a\u5ba2 \u7b2c18\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> volatile\u53ef\u4ee5\u5f3a\u5236\u7ebf\u7a0b\u4ece\u516c\u5171\u5185\u5b58\u4e2d\u8bfb\u53d6\u53d8\u91cf\u7684\u503c\uff0c\u800c\u4e0d\u662f\u4ece\u5de5\u4f5c\u5185\u5b58\u4e2d\u8bfb\u53d6<br \/> <strong>volatile\u4e0esynchronized\u6bd4\u8f83\uff1a<\/strong><\/p>\n<ol>\n<li>volatile\u5173\u952e\u5b57\u662f\u7ebf\u7a0b\u540c\u6b65\u7684\u8f7b\u91cf\u7ea7\u5b9e\u73b0\uff0c\u6240\u4ee5volatile\u6027\u80fd\u80af\u5b9a\u6bd4synchronized\u8981\u597d\uff1b<\/li>\n<li>volatile\u53ea\u80fd\u4fee\u9970\u53d8\u91cf\uff0c\u800csynchronized\u53ef\u4ee5\u4fee\u9970\u65b9\u6cd5\uff0c\u4ee3\u7801\u5757\uff1b<\/li>\n<li>\u968f\u7740JDK\u65b0\u7248\u672c\u7684\u53d1\u5e03\uff0csynchronized\u7684\u6267\u884c\u6548\u7387\u4e5f\u6709\u8f83\u5927\u7684\u63d0\u5347\uff0c\u5728\u5f00\u53d1\u4e2d\u4f7f\u7528synchronied\u7684\u6bd4\u7387\u8fd8\u662f\u5f88\u5927\u7684\uff1b<\/li>\n<li>\u591a\u7ebf\u7a0b\u8bbf\u95eevolatile\u53d8\u91cf\u4e0d\u4f1a\u53d1\u751f\u963b\u585e\uff0c\u800csynchronized\u53ef\u80fd\u4f1a\u963b\u585e\uff1b<\/li>\n<li>volatile\u80fd\u4fdd\u8bc1\u6570\u636e\u7684\u53ef\u89c1\u6027\uff0c\u4f46\u662f\u4e0d\u80fd\u4fdd\u8bc1\u539f\u5b50\u6027\uff1b\u800csynchronized\u53ef\u4ee5\u4fdd\u8bc1\u539f\u5b50\u6027\uff0c\u4e5f\u53ef\u4ee5\u4fdd\u8bc1\u53ef\u89c1\u6027\uff1b<\/li>\n<li>volatile\u89e3\u51b3\u7684\u662f\u53d8\u91cf\u5728\u591a\u4e2a\u7ebf\u7a0b\u4e4b\u95f4\u7684\u53ef\u89c1\u6027\uff1bsynchronized\u89e3\u51b3\u5bf9\u4e2a\u7ebf\u7a0b\u4e4b\u95f4\u8bbf\u95ee\u5171\u4eab\u8d44\u6e90\u7684\u540c\u6b65\u6027\u3002<\/li>\n<\/ol>\n<h2>2\uff0cvolatile\u975e\u539f\u5b50\u7279\u6027<\/h2>\n<pre><code class=\"prism language-java\"><span class=\"token comment\">\/** * volatile\u4e0d\u5177\u5907\u539f\u5b50\u6027 *\/<\/span>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TestVolatile02<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token comment\">\/\/\u5728main\u7ebf\u7a0b\u5f53\u4e2d\u521b\u5efa10\u4e2a\u5b50\u7ebf\u7a0b<\/span>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">=<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">MyThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">MyThread<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">Thread<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token comment\">\/\/volatile\u5173\u952e\u4ec5\u4ec5\u662f\u8868\u793a\u6240\u6709\u7ebf\u7a0b\u4ece\u5185\u5b58\u8bfb\u53d6count\u53d8\u91cf\u7684\u503c<\/span>\n        <span class=\"token keyword\">volatile<\/span> <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">int<\/span> count<span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">addCount<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">=<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">1000<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                count<span class=\"token operator\">++<\/span><span class=\"token punctuation\">;<\/span>\n            <span class=\"token punctuation\">}<\/span>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token string\">\" count=\"<\/span> <span class=\"token operator\">+<\/span> count<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n\n        <span class=\"token annotation punctuation\">@Override<\/span>\n        <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">run<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token function\">addCount<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n<span class=\"token punctuation\">}<\/span>\n<\/code><\/pre>\n<p>\u5f53\u6211\u4eec\u6267\u884c\u8fd9\u6bb5\u7a0b\u5e8f\u65f6\uff0c\u5982\u679c\u4fdd\u8bc1\u7ebf\u7a0b\u7684\u539f\u5b50\u6027\uff0c\u90a3\u4e48\u6253\u5370\u51fa\u6765\u7684\u4e00\u5b9a\u90fd\u662f1000\u7684\u500d\u6570\uff0c\u4f46\u7ed3\u679c\u4e0d\u662f\uff0c\u8bf4\u660evolatile\u4e0d\u80fd\u4fdd\u8bc1\u7ebf\u7a0b\u7684\u539f\u5b50\u6027\u3002<br \/> <img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/8cf4338b5f3546edb5a9e15d0880d21b.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c19\u5f20\" title=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 \u6280\u672f\u535a\u5ba2 \u7b2c19\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u89e3\u51b3\u65b9\u6cd5\u662f\u7ed9addCount\u65b9\u6cd5\u6dfb\u52a0synchronized\u540c\u6b65\u9501\uff0c\u90a3\u4e48\u4e5f\u5c31\u6ca1\u6709\u5fc5\u8981\u7ed9count\u6dfb\u52a0volatile\u5173\u952e\u5b57\u4e86\u3002<\/p>\n<h2>3\uff0c\u5e38\u7528\u7684\u539f\u5b50\u7c7b\u8fdb\u884c\u81ea\u589e\u548c\u81ea\u51cf\u64cd\u4f5c<\/h2>\n<p>\u6211\u4eec\u77e5\u9053i++\u64cd\u4f5c\u4e0d\u662f\u539f\u5b50\u64cd\u4f5c\uff0c\u9664\u4e86\u4f7f\u7528synchronized\u8fdb\u884c\u540c\u6b65\u5916\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528AtomicInteger\/AtomicLong\u539f\u5b50\u7c7b\u8fdb\u884c\u5b9e\u73b0\u3002<br \/> <strong>AtomicInteger<\/strong><\/p>\n<pre><code class=\"prism language-java\"><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TestAtomic01<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">InterruptedException<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token comment\">\/\/\u5728main\u7ebf\u7a0b\u5f53\u4e2d\u521b\u5efa10\u4e2a\u5b50\u7ebf\u7a0b<\/span>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">=<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">MyThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n        <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">MyThread<\/span><span class=\"token punctuation\">.<\/span>count<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">MyThread<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">Thread<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token comment\">\/\/\u4f7f\u7528AtomicInteger\u5bf9\u8c61<\/span>\n        <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">AtomicInteger<\/span> count <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">AtomicInteger<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\n        <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">addCount<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">=<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">1000<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                count<span class=\"token punctuation\">.<\/span><span class=\"token function\">getAndIncrement<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n            <span class=\"token punctuation\">}<\/span>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token string\">\" count=\"<\/span> <span class=\"token operator\">+<\/span> count<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n\n        <span class=\"token annotation punctuation\">@Override<\/span>\n        <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">run<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token function\">addCount<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n    <span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">}<\/span>\n<\/code><\/pre>\n<p>\u4fdd\u8bc1\u4e86\u539f\u5b50\u6027\uff0c\u5176\u7ed3\u679c\u5982\u4e0b<br \/> <img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/05d545cb45984eda99a162b5560e31f9.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c20\u5f20\" title=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 \u6280\u672f\u535a\u5ba2 \u7b2c20\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u4ed4\u7ec6\u770b\uff0c\u4f1a\u51fa\u73b0\u4e0d\u662f1000\u6574\u6570\u7684\u60c5\u51b5\uff0c\u539f\u5b50\u6027\uff1f<br \/> \u6b64\u6b21\u5b58\u5728\u6709\u4e0d\u662f1000\u7684\u6574\u6570\u500d\u662f\u56e0\u4e3amethod\u8fd9\u4e2a\u65b9\u6cd5\u4e0d\u662f\u540c\u6b65\u7684\u3002\u5982\u5f53thread-0\u521a\u6267\u884c\u5b8c\u5faa\u73af\u7684\u65f6\u5019\u662f1000\uff0c\u4f46\u662f\u5176\u4ed6\u7ebf\u7a0b\u4ecd\u7136\u5728\u81ea\u589e\uff0c\u6253\u5370\u7ed3\u679c\u5c31\u4e0d\u4f1a\u662f1000\uff0c\u4f46\u662f\u539f\u5b50\u7c7b\u5bf9\u8c61\u7684\u81ea\u589e\u662f\u540c\u6b65\u7684\uff0c\u6240\u4ee5\u4e0d\u4f1a\u51fa\u73b0\u810f\u8bfb\u73b0\u8c61\uff0c\u5373\u6700\u7ec8\u7ed3\u679c\u59cb\u7ec8\u6b63\u786e\u3002<\/p>\n<h1>\u4e94\uff0cCAS<\/h1>\n<h2>1\uff0c\u6982\u8ff0<\/h2>\n<p>CAS(Compare And Swap)\u662f\u7531\u786c\u4ef6\u5b9e\u73b0\u7684\u3002<br \/> CAS\u53ef\u4ee5\u5c06read-modify-write\u8fd9\u7c7b\u7684\u64cd\u4f5c\u8f6c\u6362\u4e3a\u539f\u5b50\u64cd\u4f5c\u3002<br \/> i++\u81ea\u589e\u64cd\u4f5c\u5305\u62ec\u4e09\u4e2a\u5b50\u64cd\u4f5c\uff1a<br \/> \u4ece\u5185\u5b58\u8bfb\u53d6i\u53d8\u91cf\u503c<br \/> \u5bf9i\u7684\u503c\u52a01<br \/> \u518d\u628a\u52a01\u4e4b\u540e\u7684\u503c\u4fdd\u5b58\u5230\u4e3b\u5185\u5b58<br \/> CAS\u539f\u7406\uff1a\u5728\u628a\u6570\u636e\u66f4\u65b0\u5230\u4e3b\u5185\u5b58\u65f6\uff0c\u518d\u6b21\u8bfb\u53d6\u4e3b\u5185\u5b58\u53d8\u91cf\u7684\u503c\uff0c\u5982\u679c\u5728\u53d8\u91cf\u7684\u503c\u4e0e\u671f\u671b\u7684\u503c\uff08\u64cd\u4f5c\u8d77\u59cb\u65f6\u8bfb\u53d6\u7684\u503c\uff09\u4e00\u6837\u7684\u503c\u5c31\u66f4\u65b0<br \/> <img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/5ea4c85604c843a3b22c03e43ed7c115.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c21\u5f20\" title=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 \u6280\u672f\u535a\u5ba2 \u7b2c21\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u5728\u7b2c\u4e03\u6b65\u64a4\u9500\u540e\u53ef\u80fd\u91cd\u505a\uff0c\u6216\u8005\u4e0d\u505a\u3002<\/p>\n<h2>2\uff0c\u4f7f\u7528CAS\u5b9e\u73b0\u7ebf\u7a0b\u7684\u8ba1\u6570\u5668<\/h2>\n<pre><code class=\"prism language-java\"><span class=\"token comment\">\/** * \u4f7f\u7528CAS\u5b9e\u73b0\u4e00\u4e2a\u7ebf\u7a0b\u5b89\u5168\u7684\u8ba1\u6570\u5668 *\/<\/span>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TestCAS<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token class-name\">CASCounter<\/span> cc <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">CASCounter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">=<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">1000<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">-&gt;<\/span> <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>cc<span class=\"token punctuation\">.<\/span><span class=\"token function\">incrementAndGet<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n    <span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">}<\/span>\n\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">CASCounter<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token comment\">\/\/\u4f7f\u7528volatile\u4fee\u9970value\u503c\uff0c\u4f7f\u7ebf\u7a0b\u53ef\u89c1<\/span>\n    <span class=\"token keyword\">volatile<\/span> <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">long<\/span> value<span class=\"token punctuation\">;<\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">long<\/span> <span class=\"token function\">getValue<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token keyword\">return<\/span> value<span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token comment\">\/\/\u5b9a\u4e49compare and swap\u65b9\u6cd5<\/span>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">boolean<\/span> <span class=\"token function\">compareAndSwap<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">long<\/span> expectedValue<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">long<\/span> newValue<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token comment\">\/\/\u5982\u679c\u5f53\u524dvalue\u7684\u503c\u4e0e\u671f\u671b\u7684expectedValue\u503c\u4e00\u6837\uff0c\u5c31\u628a\u5f53\u524d\u7684Value\u5b57\u6bb5\u66ff\u6362\u4e3anewValue\u503c<\/span>\n        <span class=\"token keyword\">synchronized<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>value <span class=\"token operator\">==<\/span> expectedValue<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                value <span class=\"token operator\">=<\/span> newValue<span class=\"token punctuation\">;<\/span>\n                <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span>\n            <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                <span class=\"token keyword\">return<\/span> <span class=\"token boolean\">false<\/span><span class=\"token punctuation\">;<\/span>\n            <span class=\"token punctuation\">}<\/span>\n        <span class=\"token punctuation\">}<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token comment\">\/\/\u5b9a\u4e49\u81ea\u589e\u7684\u65b9\u6cd5<\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">long<\/span> <span class=\"token function\">incrementAndGet<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token keyword\">long<\/span> oldValue<span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">long<\/span> newValue<span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">do<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            oldValue <span class=\"token operator\">=<\/span> value<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/\u4e00\u76f4\u53bb\u8bfb\u6700\u65b0\u7684value\u503c\uff0c\u77e5\u9053\u5bf9\u4e3a\u6b62<\/span>\n            newValue <span class=\"token operator\">=<\/span> oldValue <span class=\"token operator\">+<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span><span class=\"token function\">compareAndSwap<\/span><span class=\"token punctuation\">(<\/span>oldValue<span class=\"token punctuation\">,<\/span> newValue<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">return<\/span> newValue<span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n<span class=\"token punctuation\">}<\/span>\n<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/93ddd95ab6db4056bc280da391ca5860.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c22\u5f20\" title=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 \u6280\u672f\u535a\u5ba2 \u7b2c22\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> CAS\u5b9e\u73b0\u539f\u5b50\u64cd\u4f5c\u80cc\u540e\u6709\u4e00\u4e2a\u5047\u8bbe\uff1a\u5171\u4eab\u53d8\u91cf\u7684\u5f53\u524d\u503c\u4e0e\u5f53\u524d\u7ebf\u7a0b\u63d0\u4f9b\u7684\u671f\u671b\u503c\u76f8\u540c\uff0c\u5c31\u8ba4\u4e3a\u8fd9\u4e2a\u53d8\u91cf\u6ca1\u6709\u88ab\u5176\u4ed6\u7ebf\u7a0b\u4fee\u6539\u8fc7\u3002<br \/> \u5b9e\u9645\u4e0a\u8fd9\u79cd\u5047\u8bbe\u4e0d\u4e00\u5b9a\u603b\u662f\u6210\u7acb\u3002\u5982\u679c\u5171\u4eab\u53d8\u91cfcount = 0<br \/> A \u7ebf\u7a0b\u5bf9count\u503c\u4fee\u6539\u4e3a10<br \/> B \u7ebf\u7a0b\u5bf9count\u503c\u4fee\u6539\u4e3a20<br \/> C \u7ebf\u7a0b\u5bf9count\u503c\u4fee\u6539\u4e3a0<br \/> \u5f53\u524d\u7ebf\u7a0b\u770b\u5230count\u53d8\u91cf\u7684\u503c\u73b0\u5728\u662f0\uff0c\u73b0\u5728\u662f\u5426\u8ba4\u4e3acount\u53d8\u91cf\u7684\u503c\u6ca1\u6709\u88ab\u5176\u4ed6\u7ebf\u7a0b\u66f4\u65b0\u5462\uff1f\u8fd9\u79cd\u7ed3\u679c\u662f\u5426\u80fd\u591f\u63a5\u53d7\uff1f<br \/> \u8fd9\u5c31\u662fCAS\u4e2d\u7684ABA\u95ee\u9898\uff0c\u5373\u5171\u4eab\u53d8\u91cf\u7ecf\u5386\u4e86A-&gt;B-A\u7684\u66f4\u65b0\u3002<br \/> \u662f\u5426\u80fd\u591f\u63a5\u6536ABA\u95ee\u9898\u8ddf\u5b9e\u73b0\u7684\u7b97\u6cd5\u6709\u5173\uff0c\u5982\u679c\u60f3\u8981\u89c4\u907fABA\u95ee\u9898\uff0c\u53ef\u4ee5\u4e3a\u5171\u4eab\u53d8\u91cf\u5f15\u5165\u4e00\u4e2a\u4fee\u8ba2\u53f7\uff08\u65f6\u95f4\u6233\uff09\uff0c\u6bcf\u6b21\u4fee\u6539\u5171\u4eab\u53d8\u91cf\u65f6\uff0c\u76f8\u5e94\u7684\u4fee\u8ba2\u53f7\u5c31\u4f1a\u589e\u52a01.ABA\u53d8\u91cf\u66f4\u65b0\u8fc7\u7a0b\u53d8\u91cf\uff1a[A,0] -&gt; [B,1] -&gt; [A,2]\uff0c\u6bcf\u6b21\u5bf9\u5171\u4eab\u53d8\u91cf\u7684\u4fee\u6539\u90fd\u4f1a\u5bfc\u81f4\u4fee\u8ba2\u53f7\u7684\u589e\u52a0\uff0c\u901a\u8fc7\u4fee\u8ba2\u53f7\u4f9d\u7136\u53ef\u4ee5\u51c6\u786e\u5224\u65ad\u53d8\u91cf\u662f\u5426\u88ab\u5176\u4ed6\u7ebf\u7a0b\u4fee\u6539\u8fc7\u3002AtomicStampedReference\u7c7b\u5c31\u662f\u57fa\u4e8e\u8fd9\u79cd\u601d\u60f3\u4ea7\u751f\u7684\u3002<\/p>\n<h1>\u516d\uff0c\u539f\u5b50\u53d8\u91cf\u7c7b<\/h1>\n<p>\u539f\u5b50\u53d8\u91cf\u7c7b\u57fa\u4e8eCAS\u5b9e\u73b0\u7684\uff0c\u5f53\u5bf9\u5171\u4eab\u53d8\u91cf\u8fdb\u884cread-modify-write\u66f4\u65b0\u64cd\u4f5c\u65f6\uff0c\u901a\u8fc7\u539f\u5b50\u53d8\u91cf\u7c7b\u53ef\u4ee5\u4fdd\u969c\u64cd\u4f5c\u7684\u539f\u5b50\u6027\u4e0e\u53ef\u89c1\u6027\u3002\u5bf9\u53d8\u91cf\u7684read-modify-write\u66f4\u65b0\u64cd\u4f5c\u662f\u6307\u5f53\u524d\u64cd\u4f5c\u4e0d\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u8d4b\u503c\uff0c\u800c\u662f\u53d8\u91cf\u7684\u65b0\u503c\u4f9d\u8d56\u53d8\u91cf\u7684\u65e7\u503c\uff0c\u5982\u81ea\u589e\u64cd\u4f5ci++\u3002\u7531\u4e8evolatile\u53ea\u80fd\u4fdd\u8bc1\u53ef\u89c1\u6027\uff0c\u65e0\u6cd5\u4fdd\u969c\u539f\u5b50\u6027\uff0c\u539f\u5b50\u53d8\u91cf\u7c7b\u5185\u90e8\u5c31\u662f\u501f\u52a9\u4e00\u4e2avolatile\u53d8\u91cf\uff0c\u5e76\u4e14\u4fdd\u969c\u4e86\u8be5\u53d8\u91cf\u7684read-modify-write\u64cd\u4f5c\u7684\u539f\u5b50\u6027\uff0c\u6709\u65f6\u628a\u539f\u5b50\u53d8\u91cf\u7c7b\u770b\u4f5c\u589e\u5f3a\u7684volatile\u53d8\u91cf\u3002\u539f\u5b50\u53d8\u91cf\u7c7b\u670912\u4e2a\uff0c\u5982\uff1a<\/p>\n<table>\n<thead>\n<tr>\n<th>\u5206\u7ec4<\/th>\n<th>\u539f\u5b50\u53d8\u91cf\u7c7b<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u57fa\u7840\u6570\u636e\u578b<\/td>\n<td>AtomicInteger, AtomicLong, AtomicBoolean<\/td>\n<\/tr>\n<tr>\n<td>\u6570\u7ec4\u578b<\/td>\n<td>AtomicIntegerArray, AtomicLongArray, AtomicReferenceArray<\/td>\n<\/tr>\n<tr>\n<td>\u5b57\u6bb5\u66f4\u65b0\u5668<\/td>\n<td>AtomicFieldUpdater, AtomicLongFieldUpdater, AtomicReferenceFieldUpdater<\/td>\n<\/tr>\n<tr>\n<td>\u5f15\u7528\u578b<\/td>\n<td>AtomicReference, AtomicStampedReference, AtomicMarkableReference<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>1\uff0cAtomicLong<\/h2>\n<p>\u9996\u5148\u5199\u4e2a\u5171\u7528\u7684\u8ba1\u6570\u7c7b<\/p>\n<pre><code class=\"prism language-java\"><span class=\"token comment\">\/** * \u4f7f\u7528\u539f\u5b50\u53d8\u91cf\u7c7b\u5b9a\u4e49\u4e00\u4e2a\u8ba1\u6570\u5668 * \u8be5\u8ba1\u6570\u5668\uff0c\u5728\u6574\u4e2a\u7a0b\u5e8f\u4e2d\u90fd\u80fd\u4f7f\u7528\uff0c\u5e76\u4e14\u6240\u6709\u7684\u5730\u65b9\u90fd\u4f7f\u7528\u8fd9\u4e00\u4e2a\u8ba1\u6570\u5668\uff0c\u8fd9\u4e2a\u8ba1\u6570\u5668\u53ef\u4ee5\u8bbe\u8ba1\u4e3a\u5355\u4f8b * Author: DRHJ * Date: 2022\/7\/5 21:21 *\/<\/span>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Indicator<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token comment\">\/\/\u6784\u9020\u65b9\u6cd5\u79c1\u6709\u5316<\/span>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">Indicator<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span><span class=\"token punctuation\">}<\/span>\n    <span class=\"token comment\">\/\/\u5b9a\u4e49\u4e00\u4e2a\u79c1\u6709\u7684\u672c\u7c7b\u9759\u6001\u7684\u5bf9\u8c61<\/span>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">Indicator<\/span> INSTANCE <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Indicator<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token comment\">\/\/\u63d0\u4f9b\u4e00\u4e2a\u516c\u5171\u9759\u6001\u65b9\u6cd5\u8fd4\u56de\u8be5\u7c7b\u552f\u4e00\u5b9e\u4f8b<\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">Indicator<\/span> <span class=\"token function\">getInstance<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token keyword\">return<\/span> INSTANCE<span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token comment\">\/\/\u4f7f\u7528\u539f\u5b50\u53d8\u91cf\u7c7b\u4fdd\u5b58\u8bf7\u6c42\u603b\u6570\uff0c\u6210\u529f\u6570\uff0c\u5931\u8d25\u6570<\/span>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">AtomicLong<\/span> requestCount <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">AtomicLong<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u8bb0\u5f55\u8bf7\u6c42\u603b\u6570<\/span>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">AtomicLong<\/span> successCount <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">AtomicLong<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u5904\u7406\u6210\u529f\u603b\u6570<\/span>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">AtomicLong<\/span> failCount <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">AtomicLong<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>   <span class=\"token comment\">\/\/\u5904\u7406\u5931\u8d25\u603b\u6570<\/span>\n\n    <span class=\"token comment\">\/\/\u6709\u65b0\u7684\u8bf7\u6c42<\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">requestProcessReceive<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        requestCount<span class=\"token punctuation\">.<\/span><span class=\"token function\">incrementAndGet<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token comment\">\/\/\u5904\u7406\u6210\u529f<\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">requestProcessSuccess<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        successCount<span class=\"token punctuation\">.<\/span><span class=\"token function\">incrementAndGet<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token comment\">\/\/\u5904\u7406\u5931\u8d25<\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">requestCountFailure<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        failCount<span class=\"token punctuation\">.<\/span><span class=\"token function\">incrementAndGet<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token comment\">\/\/\u67e5\u770b\u603b\u6570\uff0c\u6210\u529f\u6570\uff0c\u5931\u8d25\u6570<\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">long<\/span> <span class=\"token function\">getRequestCount<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token keyword\">return<\/span> requestCount<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">long<\/span> <span class=\"token function\">getSuccessCount<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token keyword\">return<\/span> successCount<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">long<\/span> <span class=\"token function\">getFailCount<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token keyword\">return<\/span> failCount<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n<span class=\"token punctuation\">}<\/span>\n<\/code><\/pre>\n<pre><code class=\"prism language-java\"><span class=\"token comment\">\/** * \u6a21\u62df\u670d\u52a1\u5668\u8bf7\u6c42\u7efc\u8ff0\uff0c\u5904\u7406\u6210\u529f\u6570\uff0c\u5904\u7406\u5931\u8d25\u6570 *\/<\/span>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TestAtomicLong01<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token comment\">\/\/\u901a\u8fc7\u7ebf\u7a0b\u6a21\u62df\u8bf7\u6c42,\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u53ef\u4ee5\u5728ServletFilter\u4e2d\u8c03\u7528Indicator\u8ba1\u6570\u5668\u7684\u76f8\u5173\u65b9\u6cd5<\/span>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">=<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">10000<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                <span class=\"token comment\">\/\/\u6bcf\u4e2a\u7ebf\u7a0b\u5c31\u662f\u4e00\u4e2a\u8bf7\u6c42\uff0c\u8bf7\u6c42\u603b\u6570\u8981\u52a01<\/span>\n                <span class=\"token class-name\">Indicator<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getInstance<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">requestProcessReceive<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n                <span class=\"token keyword\">int<\/span> num <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Random<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">nextInt<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n                <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>num <span class=\"token operator\">%<\/span> <span class=\"token number\">2<\/span> <span class=\"token operator\">==<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span> <span class=\"token comment\">\/\/\u5076\u6570\u6a21\u62df\u6210\u529f<\/span>\n                    <span class=\"token class-name\">Indicator<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getInstance<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">requestProcessSuccess<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n                <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                    <span class=\"token class-name\">Indicator<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getInstance<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">requestCountFailure<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n                <span class=\"token punctuation\">}<\/span>\n            <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n\n        <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            e<span class=\"token punctuation\">.<\/span><span class=\"token function\">printStackTrace<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n\n        <span class=\"token comment\">\/\/\u6253\u5370\u7ed3\u679c<\/span>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Indicator<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getInstance<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getRequestCount<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/\u603b\u7684\u8bf7\u6c42\u6570<\/span>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Indicator<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getInstance<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getSuccessCount<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/\u6210\u529f\u6570<\/span>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Indicator<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getInstance<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getFailCount<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>    <span class=\"token comment\">\/\/\u5931\u8d25\u6570<\/span>\n\n    <span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">}<\/span>\n<\/code><\/pre>\n<p>\u7ed3\u679c\u5982\u4e0b\uff1a<br \/> <img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/1a9381d390004d9fa8a79d74123949d0.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c23\u5f20\" title=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 \u6280\u672f\u535a\u5ba2 \u7b2c23\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u5931\u8d25\u6570 + \u6210\u529f\u6570 = \u8bf7\u6c42\u6570 \u56e0\u6b64\u53ef\u89c1\uff0c\u4fdd\u8bc1\u4e86\u539f\u5b50\u6027\u3002<\/p>\n<h2>2\uff0cAtomicIntegerArray<\/h2>\n<p><strong>\u539f\u5b50\u6570\u7ec4\u66f4\u65b0<\/strong><\/p>\n<pre><code class=\"prism language-java\"><span class=\"token comment\">\/** * \u539f\u5b50\u66f4\u65b0\u6570\u7ec4 * Author: DRHJ * Date: 2022\/7\/5 21:59 *\/<\/span>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TestAtomicIntegerArray<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token comment\">\/\/\u521b\u5efa\u4e00\u4e2a\u6307\u5b9a\u957f\u5ea6\u7684\u539f\u5b50\u6570\u7ec4<\/span>\n        <span class=\"token class-name\">AtomicIntegerArray<\/span> arr <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">AtomicIntegerArray<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token comment\">\/\/\u8fd4\u56de\u6307\u5b9a\u4f4d\u7f6e\u7684\u5143\u7d20<\/span>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token comment\">\/\/\u8bbe\u7f6e\u6307\u5b9a\u4f4d\u7f6e\u7684\u5143\u7d20<\/span>\n        arr<span class=\"token punctuation\">.<\/span><span class=\"token function\">set<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token comment\">\/\/\u5728\u8bbe\u7f6e\u6570\u7ec4\u5143\u7d20\u7684\u65b0\u503c\u65f6\uff0c\u540c\u65f6\u8fd4\u56de\u6570\u7ec4\u5143\u7d20\u7684\u65e7\u503c<\/span>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">.<\/span><span class=\"token function\">getAndSet<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">11<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token comment\">\/\/\u4fee\u6539\u6570\u7ec4\u5143\u7d20\u7684\u503c\uff0c\u628a\u6570\u7ec4\u5143\u7d20\u52a0\u4e0a\u67d0\u4e2a\u503c<\/span>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">.<\/span><span class=\"token function\">addAndGet<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">22<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token comment\">\/\/\u5148\u8fd4\u56de\u518d\u4fee\u6539<\/span>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">.<\/span><span class=\"token function\">getAndAdd<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">33<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token comment\">\/\/CAS\u64cd\u4f5c<\/span>\n        <span class=\"token comment\">\/\/\u5982\u679c\u6570\u7ec4\u4e2d\u7d22\u5f15\u503c\u4e3a0\u7684\u5143\u7d20\u7684\u503c\u662f32\uff0c\u5c31\u4fee\u6539\u4e3a222<\/span>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">.<\/span><span class=\"token function\">compareAndSet<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">32<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">222<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">.<\/span><span class=\"token function\">compareAndSet<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">11<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">333<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token comment\">\/\/\u81ea\u589e\/\u81ea\u51cf<\/span>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">.<\/span><span class=\"token function\">incrementAndGet<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">.<\/span><span class=\"token function\">getAndIncrement<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">.<\/span><span class=\"token function\">decrementAndGet<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">.<\/span><span class=\"token function\">getAndDecrement<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">}<\/span>\n<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/4a6dd8eac6c4444992de7fb0ebb45b5f.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c24\u5f20\" title=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 \u6280\u672f\u535a\u5ba2 \u7b2c24\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> <strong>\u591a\u7ebf\u7a0b\u8c03\u7528\u539f\u5b50\u6570\u7ec4<\/strong><\/p>\n<pre><code class=\"prism language-java\"><span class=\"token comment\">\/** * \u5728\u591a\u7ebf\u7a0b\u4e2d\u4f7f\u7528\u539f\u5b50\u6570\u7ec4 * Author: DRHJ * Date: 2022\/7\/5 22:13 *\/<\/span>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TestAtomicIntegerArray02<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token comment\">\/\/\u5b9a\u4e49\u539f\u5b50\u6570\u7ec4<\/span>\n    <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">AtomicIntegerArray<\/span> arr <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">AtomicIntegerArray<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token comment\">\/\/\u5b9a\u4e49\u7ebf\u7a0b\u6570\u7ec4<\/span>\n        <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> threads <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">[<\/span><span class=\"token number\">10<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token comment\">\/\/\u7ed9\u7ebf\u7a0b\u6570\u7ec4\u5143\u7d20\u8d4b\u503c<\/span>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">=<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> threads<span class=\"token punctuation\">.<\/span>length<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            threads<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">AddThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n        <span class=\"token comment\">\/\/\u5f00\u542f\u5b50\u7ebf\u7a0b<\/span>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span> thread <span class=\"token operator\">:<\/span> threads<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n        <span class=\"token comment\">\/\/\u5728\u4e3b\u7ebf\u7a0b\u4e2d\u67e5\u770b\u81ea\u589e\u5b8c\u4ee5\u540e\u539f\u5b50\u6570\u7ec4\u4e2d\u7684\u5404\u4e2a\u5143\u7d20\u7684\u503c\uff0c\u5728\u4e3b\u7ebf\u7a0b\u4e2d\u9700\u8981\u5728\u6240\u6709\u5b50\u7ebf\u7a0b\u4e2d\u90fd\u6267\u884c\u5b8c\u540e\u518d\u67e5\u770b<\/span>\n        <span class=\"token comment\">\/\/\u628a\u6240\u6709\u7684\u5b50\u7ebf\u7a0b\u5408\u5e76\u5230\u5f53\u524d\u4e3b\u7ebf\u7a0b\u4e2d<\/span>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span> thread <span class=\"token operator\">:<\/span> threads<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                thread<span class=\"token punctuation\">.<\/span><span class=\"token function\">join<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n            <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                e<span class=\"token punctuation\">.<\/span><span class=\"token function\">printStackTrace<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n            <span class=\"token punctuation\">}<\/span>\n        <span class=\"token punctuation\">}<\/span>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>arr<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token comment\">\/\/\u5b9a\u4e49\u4e00\u4e2a\u7ebf\u7a0b\u7c7b\uff0c\u5728\u7ebf\u7a0b\u7c7b\u4e2d\u4fee\u6539\u539f\u5b50\u6570\u7ec4<\/span>\n    <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">AddThread<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">Thread<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token annotation punctuation\">@Override<\/span>\n        <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">run<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token comment\">\/\/\u628a\u539f\u5b50\u6570\u7ec4\u7684\u6bcf\u4e2a\u5143\u7d20\u81ea\u589e1000\u6b21<\/span>\n            <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">=<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">10000<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                arr<span class=\"token punctuation\">.<\/span><span class=\"token function\">getAndIncrement<\/span><span class=\"token punctuation\">(<\/span>i <span class=\"token operator\">%<\/span> arr<span class=\"token punctuation\">.<\/span><span class=\"token function\">length<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n            <span class=\"token punctuation\">}<\/span>\n        <span class=\"token punctuation\">}<\/span>\n    <span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">}<\/span>\n<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/663060783733475ebbcceeb6a984256d.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c25\u5f20\" title=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 \u6280\u672f\u535a\u5ba2 \u7b2c25\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><\/p>\n<h2>3\uff0cAtomicIntegerFieldUpdater<\/h2>\n<p>AtomicIntegerFieldUpdater\u53ef\u4ee5\u5bf9\u539f\u5b50\u6574\u6570\u5b57\u6bb5\u8fdb\u884c\u66f4\u65b0\uff0c\u8981\u6c42\uff1a<br \/> 1\uff09\u5b57\u7b26\u5fc5\u987b\u4f7f\u7528volatile\u4fee\u9970\uff0c\u4f7f\u7ebf\u7a0b\u4e4b\u95f4\u53ef\u89c1\uff1b<br \/> 2\uff09\u53ea\u80fd\u662f\u5b9e\u4f8b\u53d8\u91cf\uff0c\u4e0d\u80fd\u662f\u9759\u6001\u53d8\u91cf\uff0c\u4e5f\u4e0d\u80fd\u4f7f\u7528final\u4fee\u9970\u3002<\/p>\n<pre><code class=\"prism language-java\"><span class=\"token comment\">\/** * Author: DRHJ * Date: 2022\/7\/5 23:22 *\/<\/span>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TestFieldUpdater<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token class-name\">User<\/span> user <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">User<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">22<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token comment\">\/\/\u5f00\u542f10\u4e2a\u8fdb\u7a0b<\/span>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">=<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">SubThread<\/span><span class=\"token punctuation\">(<\/span>user<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n\n        <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            e<span class=\"token punctuation\">.<\/span><span class=\"token function\">printStackTrace<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>user<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\n    <span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">}<\/span>\n\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">User<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">int<\/span> id<span class=\"token punctuation\">;<\/span>\n    <span class=\"token keyword\">volatile<\/span> <span class=\"token keyword\">int<\/span> age<span class=\"token punctuation\">;<\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">User<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> id<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> age<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>id <span class=\"token operator\">=<\/span> id<span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>age <span class=\"token operator\">=<\/span> age<span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token annotation punctuation\">@Override<\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">String<\/span> <span class=\"token function\">toString<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token keyword\">return<\/span> <span class=\"token string\">\"User{\"<\/span> <span class=\"token operator\">+<\/span>\n                <span class=\"token string\">\"id=\"<\/span> <span class=\"token operator\">+<\/span> id <span class=\"token operator\">+<\/span>\n                <span class=\"token string\">\", age=\"<\/span> <span class=\"token operator\">+<\/span> age <span class=\"token operator\">+<\/span>\n                <span class=\"token char\">'}'<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">}<\/span>\n\n<span class=\"token keyword\">class<\/span> <span class=\"token class-name\">SubThread<\/span> <span class=\"token keyword\">extends<\/span> <span class=\"token class-name\">Thread<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">User<\/span> user<span class=\"token punctuation\">;<\/span>         <span class=\"token comment\">\/\/\u66f4\u65b0\u7684User\u5bf9\u8c61<\/span>\n    <span class=\"token comment\">\/\/\u521b\u5efaAtomicIntegerFieldUpdater\u66f4\u65b0\u5668<\/span>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">AtomicIntegerFieldUpdater<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">User<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> updater <span class=\"token operator\">=<\/span> <span class=\"token class-name\">AtomicIntegerFieldUpdater<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">newUpdater<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">User<\/span><span class=\"token punctuation\">.<\/span><span class=\"token keyword\">class<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"age\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">SubThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">User<\/span> user<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>user <span class=\"token operator\">=<\/span> user<span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n    <span class=\"token annotation punctuation\">@Override<\/span>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">run<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token comment\">\/\/\u5728\u5b50\u7ebf\u7a0b\u4e2d\u5bf9user\u5bf9\u8c61\u7684age\u5b57\u6bb5\u81ea\u589e10\u6b21<\/span>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">=<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">10<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>updater<span class=\"token punctuation\">.<\/span><span class=\"token function\">getAndIncrement<\/span><span class=\"token punctuation\">(<\/span>user<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n    <span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">}<\/span>\n<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/96d8ab187639423283452b335d20d212.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c26\u5f20\" title=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 \u6280\u672f\u535a\u5ba2 \u7b2c26\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><\/p>\n<h2>4\uff0cAtomicReference<\/h2>\n<h3>4.1\uff0c\u6f14\u793a<\/h3>\n<p>\u53ef\u4ee5\u539f\u5b50\u8bfb\u5199\u4e00\u4e2a\u5bf9\u8c61<\/p>\n<pre><code class=\"prism language-java\"><span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>util<span class=\"token punctuation\">.<\/span>concurrent<span class=\"token punctuation\">.<\/span>atomic<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">AtomicReference<\/span><span class=\"token punctuation\">;<\/span>\n\n<span class=\"token comment\">\/** * \u4f7f\u7528AtomicReference\u539f\u5b50\u8bfb\u5199\u4e00\u4e2a\u5bf9\u8c61 * Author: DRHJ * Date: 2022\/7\/5 23:39 *\/<\/span>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TestReference<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token comment\">\/\/\u521b\u5efa\u4e00\u4e2aAtomicReference\u5bf9\u8c61<\/span>\n    <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">AtomicReference<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> atomicReference <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">AtomicReference<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"abc\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token comment\">\/\/\u521b\u5efa100\u4e2a\u7ebf\u7a0b\u4fee\u6539\u5b57\u7b26\u7a9c<\/span>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">=<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>atomicReference<span class=\"token punctuation\">.<\/span><span class=\"token function\">compareAndSet<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"abc\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"def\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token string\">\"\u628a\u5b57\u7b26\u7a9cabc\u66f4\u6539\u4e3adef\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n                <span class=\"token punctuation\">}<\/span>\n            <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n        <span class=\"token comment\">\/\/\u518d\u521b\u5efa100\u4e2a\u7ebf\u7a0b<\/span>\n        <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> i <span class=\"token operator\">=<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>atomicReference<span class=\"token punctuation\">.<\/span><span class=\"token function\">compareAndSet<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"def\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"abc\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                    <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token string\">\"\u628a\u5b57\u7b26\u7a9cdef\u66f4\u6539\u4e3aabc\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n                <span class=\"token punctuation\">}<\/span>\n            <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>atomicReference<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n\n<span class=\"token punctuation\">}<\/span>\n\n<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/5ec77766992f4e4794da54873ddc6387.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c27\u5f20\" title=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 \u6280\u672f\u535a\u5ba2 \u7b2c27\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><\/p>\n<h3>4.2\uff0cABA\u95ee\u9898<\/h3>\n<pre><code class=\"prism language-java\"><span class=\"token comment\">\/** * \u6f14\u793aAtomicReference\u53ef\u80fd\u4f1a\u51fa\u73b0CAS\u7684ABA\u95ee\u9898 * Author: DRHJ * Date: 2022\/7\/5 23:47 *\/<\/span>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TestReference02<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">AtomicReference<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> a <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">AtomicReference<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"abc\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token comment\">\/\/\u521b\u5efa\u7b2c\u4e00\u4e2a\u7ebf\u7a0b\uff0c\u5148\u628aabc\u5b57\u7b26\u7a9c\u6539\u4e3adef\uff0c\u518d\u628a\u5b57\u7b26\u7a9c\u8fd8\u539f\u4e3aabc<\/span>\n        <span class=\"token class-name\">Thread<\/span> t1 <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            a<span class=\"token punctuation\">.<\/span><span class=\"token function\">compareAndSet<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"abc\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"def\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token string\">\"--\"<\/span> <span class=\"token operator\">+<\/span> a<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n            a<span class=\"token punctuation\">.<\/span><span class=\"token function\">compareAndSet<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"def\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"abc\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\n        <span class=\"token class-name\">Thread<\/span> t2 <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                <span class=\"token class-name\">TimeUnit<\/span><span class=\"token punctuation\">.<\/span>SECONDS<span class=\"token punctuation\">.<\/span><span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n            <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">InterruptedException<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                e<span class=\"token punctuation\">.<\/span><span class=\"token function\">printStackTrace<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n            <span class=\"token punctuation\">}<\/span>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>a<span class=\"token punctuation\">.<\/span><span class=\"token function\">compareAndSet<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"abc\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"ghg\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        t1<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        t2<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            t1<span class=\"token punctuation\">.<\/span><span class=\"token function\">join<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n            t2<span class=\"token punctuation\">.<\/span><span class=\"token function\">join<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">InterruptedException<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            e<span class=\"token punctuation\">.<\/span><span class=\"token function\">printStackTrace<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span>\n    <span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">}<\/span>\n\n<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/204de59957d3437b8a1319ba3f648f62.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c28\u5f20\" title=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 \u6280\u672f\u535a\u5ba2 \u7b2c28\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><\/p>\n<h3>4.3\uff0cABA\u95ee\u9898\u89e3\u51b3<\/h3>\n<pre><code class=\"prism language-java\"><span class=\"token comment\">\/** * AtomicStampedReference\u539f\u5b50\u7c7b\u53ef\u4ee5\u89e3\u51b3CAS\u4e2dABA\u95ee\u9898 * \u5728AtomicStampedReference\u539f\u5b50\u7c7b\u4e2d\u6709\u4e00\u4e2a\u6574\u6570\u6807\u8bb0\u503cstamp\uff0c\u6bcf\u6b21\u6267\u884cCAS\u64cd\u4f5c\u65f6\uff0c\u9700\u8981\u5bf9\u6bd4\u4ed6\u7684\u7248\u672c\uff0c\u5373\u6bd4\u8f83stamp\u7684\u503c * Author: DRHJ * Date: 2022\/7\/6 23:43 *\/<\/span>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TestAtomicStampedReference01<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token comment\">\/\/private static AtomicReference&lt;String&gt; a = new AtomicReference&lt;&gt;();<\/span>\n    <span class=\"token comment\">\/\/\u5b9a\u4e49AtomicStampedReference\u5f15\u7528\u64cd\u4f5c\"abc\"\u5b57\u7b26\u7a9c\uff0c\u6307\u5b9a\u521d\u59cb\u5316\u7248\u672c\u53f7\u4e3a0<\/span>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">AtomicStampedReference<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> as <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">AtomicStampedReference<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"abc\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">InterruptedException<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token class-name\">Thread<\/span> t1 <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            as<span class=\"token punctuation\">.<\/span><span class=\"token function\">compareAndSet<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"abc\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"def\"<\/span><span class=\"token punctuation\">,<\/span> as<span class=\"token punctuation\">.<\/span><span class=\"token function\">getStamp<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> as<span class=\"token punctuation\">.<\/span><span class=\"token function\">getStamp<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token string\">\"--\"<\/span> <span class=\"token operator\">+<\/span> as<span class=\"token punctuation\">.<\/span><span class=\"token function\">getReference<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n            as<span class=\"token punctuation\">.<\/span><span class=\"token function\">compareAndSet<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"def\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"abc\"<\/span><span class=\"token punctuation\">,<\/span> as<span class=\"token punctuation\">.<\/span><span class=\"token function\">getStamp<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> as<span class=\"token punctuation\">.<\/span><span class=\"token function\">getStamp<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token class-name\">Thread<\/span> t2 <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token keyword\">int<\/span> stamp <span class=\"token operator\">=<\/span> as<span class=\"token punctuation\">.<\/span><span class=\"token function\">getStamp<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/\u83b7\u5f97\u7248\u672c\u53f7<\/span>\n            <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                <span class=\"token class-name\">TimeUnit<\/span><span class=\"token punctuation\">.<\/span>SECONDS<span class=\"token punctuation\">.<\/span><span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n            <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                e<span class=\"token punctuation\">.<\/span><span class=\"token function\">printStackTrace<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n            <span class=\"token punctuation\">}<\/span>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>as<span class=\"token punctuation\">.<\/span><span class=\"token function\">compareAndSet<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"abc\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"ggg\"<\/span><span class=\"token punctuation\">,<\/span> stamp<span class=\"token punctuation\">,<\/span> stamp <span class=\"token operator\">+<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        t1<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        t2<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        t1<span class=\"token punctuation\">.<\/span><span class=\"token function\">join<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        t2<span class=\"token punctuation\">.<\/span><span class=\"token function\">join<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>as<span class=\"token punctuation\">.<\/span><span class=\"token function\">getReference<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">}<\/span>\n<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/66bca233a9614d30a876fd0060b00e4e.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c29\u5f20\" title=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 \u6280\u672f\u535a\u5ba2 \u7b2c29\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u56e0\u4e3a\u662f\u5728\u7761\u77201s\u524d\u6267\u884c\uff0c\u6240\u4ee5\u7ebf\u7a0b2\u83b7\u5f97\u7684\u7248\u672c\u53f7\u53ef\u80fd\u662f\u5c06abc\u53d8\u6210def\u65f6\u7684\u7248\u672c\u53f7\uff0c\u6240\u4ee5\u66f4\u65b0\u5931\u8d25\u3002<\/p>\n<pre><code class=\"prism language-java\"><span class=\"token comment\">\/** * AtomicStampedReference\u539f\u5b50\u7c7b\u53ef\u4ee5\u89e3\u51b3CAS\u4e2dABA\u95ee\u9898 * \u5728AtomicStampedReference\u539f\u5b50\u7c7b\u4e2d\u6709\u4e00\u4e2a\u6574\u6570\u6807\u8bb0\u503cstamp\uff0c\u6bcf\u6b21\u6267\u884cCAS\u64cd\u4f5c\u65f6\uff0c\u9700\u8981\u5bf9\u6bd4\u4ed6\u7684\u7248\u672c\uff0c\u5373\u6bd4\u8f83stamp\u7684\u503c * Author: DRHJ * Date: 2022\/7\/6 23:43 *\/<\/span>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">TestAtomicStampedReference01<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n    <span class=\"token comment\">\/\/private static AtomicReference&lt;String&gt; a = new AtomicReference&lt;&gt;();<\/span>\n    <span class=\"token comment\">\/\/\u5b9a\u4e49AtomicStampedReference\u5f15\u7528\u64cd\u4f5c\"abc\"\u5b57\u7b26\u7a9c\uff0c\u6307\u5b9a\u521d\u59cb\u5316\u7248\u672c\u53f7\u4e3a0<\/span>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token class-name\">AtomicStampedReference<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">&gt;<\/span><\/span> as <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">AtomicStampedReference<\/span><span class=\"token generics\"><span class=\"token punctuation\">&lt;<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"abc\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throws<\/span> <span class=\"token class-name\">InterruptedException<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n        <span class=\"token class-name\">Thread<\/span> t1 <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">-&gt;<\/span><span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            as<span class=\"token punctuation\">.<\/span><span class=\"token function\">compareAndSet<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"abc\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"def\"<\/span><span class=\"token punctuation\">,<\/span> as<span class=\"token punctuation\">.<\/span><span class=\"token function\">getStamp<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> as<span class=\"token punctuation\">.<\/span><span class=\"token function\">getStamp<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">currentThread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">getName<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token string\">\"--\"<\/span> <span class=\"token operator\">+<\/span> as<span class=\"token punctuation\">.<\/span><span class=\"token function\">getReference<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n            as<span class=\"token punctuation\">.<\/span><span class=\"token function\">compareAndSet<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"def\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"abc\"<\/span><span class=\"token punctuation\">,<\/span> as<span class=\"token punctuation\">.<\/span><span class=\"token function\">getStamp<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> as<span class=\"token punctuation\">.<\/span><span class=\"token function\">getStamp<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token class-name\">Thread<\/span> t2 <span class=\"token operator\">=<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">Thread<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">-&gt;<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n            <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                <span class=\"token class-name\">TimeUnit<\/span><span class=\"token punctuation\">.<\/span>SECONDS<span class=\"token punctuation\">.<\/span><span class=\"token function\">sleep<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n            <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\">Exception<\/span> e<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{ \n   <!-- --><\/span>\n                e<span class=\"token punctuation\">.<\/span><span class=\"token function\">printStackTrace<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n            <span class=\"token punctuation\">}<\/span>\n            <span class=\"token keyword\">int<\/span> stamp <span class=\"token operator\">=<\/span> as<span class=\"token punctuation\">.<\/span><span class=\"token function\">getStamp<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/\u83b7\u5f97\u7248\u672c\u53f7<\/span>\n            <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>as<span class=\"token punctuation\">.<\/span><span class=\"token function\">compareAndSet<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"abc\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"ggg\"<\/span><span class=\"token punctuation\">,<\/span> stamp<span class=\"token punctuation\">,<\/span> stamp <span class=\"token operator\">+<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        t1<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        t2<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        t1<span class=\"token punctuation\">.<\/span><span class=\"token function\">join<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        t2<span class=\"token punctuation\">.<\/span><span class=\"token function\">join<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n        <span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>as<span class=\"token punctuation\">.<\/span><span class=\"token function\">getReference<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n    <span class=\"token punctuation\">}<\/span>\n<span class=\"token punctuation\">}<\/span>\n<\/code><\/pre>\n<p><img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/4af711dc18224299aff52264552213ab.png\" =\"\" =\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" alt=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c30\u5f20\" title=\"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65 \u6280\u672f\u535a\u5ba2 \u7b2c30\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><br \/> \u8fd9\u91cc\u83b7\u5f97\u7684\u662f\u53ef\u80fd\u662fdef\u53c8\u53d8\u6210abc\u65f6\u7684\u7248\u672c\u53f7\uff0c\u6240\u4ee5\u6267\u884c\u6210\u529f\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u3010\u591a\u7ebf\u7a0b\u3011\u7ebf\u7a0b\u540c\u6b65\u4e00\uff0c\u7ebf\u7a0b\u540c\u6b65\u673a\u5236\u7b80\u4ecb\u4e8c\uff0c\u9501\u6982\u8ff0\u4e09\uff0c\u5185\u90e8\u9501\u56db\uff0c\u8f7b\u91cf\u7ea7\u540c\u6b65\u673a\u5236\uff1avolatile\u5173\u952e\u5b57\u4e94\uff0cCAS_\u591a\u7ebf\u7a0b\u540c\u6b65","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[82],"tags":[],"_links":{"self":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts\/540"}],"collection":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/comments?post=540"}],"version-history":[{"count":0,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts\/540\/revisions"}],"wp:attachment":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/media?parent=540"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/categories?post=540"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/tags?post=540"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}