{"id":8460,"date":"2024-04-26T16:01:01","date_gmt":"2024-04-26T08:01:01","guid":{"rendered":""},"modified":"2024-04-26T16:01:01","modified_gmt":"2024-04-26T08:01:01","slug":"java8 Duration\u3001Period\u7c7b - \u8ba1\u7b97\u4e24\u4e2a\u201c\u65f6\u95f4\u201d\u95f4\u9694\u3001\u8ba1\u7b97\u4e24\u4e2a\u201c\u65e5\u671f\u201d\u95f4\u9694","status":"publish","type":"post","link":"https:\/\/mushiming.com\/8460.html","title":{"rendered":"java8 Duration\u3001Period\u7c7b - \u8ba1\u7b97\u4e24\u4e2a\u201c\u65f6\u95f4\u201d\u95f4\u9694\u3001\u8ba1\u7b97\u4e24\u4e2a\u201c\u65e5\u671f\u201d\u95f4\u9694"},"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<div class=\"toc\">\n<h4>\u6587\u7ae0\u76ee\u5f55<\/h4>\n<ul>\n<li>\n<ul>\n<li>\u524d\u8a00<\/li>\n<li>\u4e00\uff1aDuration - \u8ba1\u7b97\u4e24\u4e2a\u201c\u65f6\u95f4\u201d\u95f4\u9694\u7684\u7c7b<\/li>\n<li>\n<ul>\n<li>1.1\u3001Duration\u5e38\u7528API\uff1a<\/li>\n<li>1.2\u3001\u8ba1\u7b97\u4e24\u4e2a\u201c\u65f6\u95f4\u201d\u95f4\u9694<\/li>\n<\/ul>\n<\/li>\n<li>\u4e8c\uff1aPeriod - \u8ba1\u7b97\u4e24\u4e2a\u201c\u65e5\u671f\u201d\u95f4\u9694\u7684\u7c7b<\/li>\n<li>\n<ul>\n<li>2.1\u3001Period\u5e38\u7528API\uff1a<\/li>\n<li>2.2\u3001\u8ba1\u7b97\u4e24\u4e2a\u65e5\u671f\u76f8\u5dee\u7684\u5177\u4f53\u5929\u6570<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/div>\n<h3>\u524d\u8a00<\/h3>\n<p>java8\u4e2d\u5f15\u5165\u4e86\u4e24\u4e2a\u4e0e\u65e5\u671f\u76f8\u5173\u7684\u65b0\u7c7b<\/p>\n<ul>\n<li>Period - \u8ba1\u7b97\u4e24\u4e2a\u201c\u65e5\u671f\u201d\u95f4\u9694\u7684\u7c7b<\/li>\n<li>Duration - \u8ba1\u7b97\u4e24\u4e2a\u201c\u65f6\u95f4\u201d\u95f4\u9694\u7684\u7c7b<\/li>\n<\/ul>\n<p>Period \u7c7b\u4e0e Duration \u7c7b\u90fd\u662f\u4e00\u6bb5\u6301\u7eed\u65f6\u95f4\u7684\u6982\u5ff5,\u5982\u679c\u9700\u8981\u5bf9\u6bd4\u65f6\u95f4\uff0c\u5b83\u4eec\u5c31\u9700\u8981\u4e00\u4e2a\u56fa\u5b9a\u7684\u65f6\u95f4\u503c,\u6240\u4ee5\u5c31\u9700\u8981 LocalDate \u7c7b\u4e0e Instant \u3001LocalTime\u3001LocalDateTime\u7c7b\u6765\u914d\u5408\u5b83\u4eec\u4f7f\u7528:<\/p>\n<ul>\n<li>Period \u5bf9\u5e94\u4f7f\u7528 LocalDate \uff0c\u5b83\u4eec\u7684\u4f5c\u7528\u8303\u56f4\u57df\u90fd\u662f\u65e5\u671f(\u5e74\/\u6708\/\u65e5)<\/li>\n<li>Duration \u5bf9\u5e94\u4f7f\u7528 Instant\u3001LocalTime\u3001LocalDateTime\uff0c\u5b83\u4eec\u7684\u4f5c\u7528\u8303\u56f4\u57df\u90fd\u662f\u65f6\u95f4(\u5929\/\u65f6\/\u5206\/\u79d2\/\u6beb\u79d2\/\u7eb3\u79d2)<\/li>\n<\/ul>\n<h3>\u4e00\uff1aDuration - \u8ba1\u7b97\u4e24\u4e2a\u201c\u65f6\u95f4\u201d\u95f4\u9694\u7684\u7c7b<\/h3>\n<p>Duration \u8868\u793a\u4e00\u4e2a\u65f6\u95f4\u6bb5\uff0cDuration \u5305\u542b\u4e24\u90e8\u5206\uff1aseconds \u8868\u793a\u79d2\uff0cnanos \u8868\u793a\u7eb3\u79d2\uff0c\u5b83\u4eec\u7684\u7ec4\u5408\u8868\u8fbe\u4e86\u65f6\u95f4\u957f\u5ea6\u3002<\/p>\n<p>\u56e0\u4e3a Duration \u8868\u793a\u65f6\u95f4\u6bb5\uff0c\u6240\u4ee5 Duration \u7c7b\u4e2d\u4e0d\u5305\u542b now() \u9759\u6001\u65b9\u6cd5\u3002\u6ce8\u610f\uff0cDuration \u4e0d\u5305\u542b\u6beb\u79d2\u8fd9\u4e2a\u5c5e\u6027\u3002<\/p>\n<p>Duration\u53ea\u80fd\u5904\u7406\u4e24\u4e2a\u65f6\u95f4\u7c7b\uff0c\u4f8b\u5982LocalTime, LocalDateTime, ZonedDateTime; \u5982\u679c\u4f20\u5165\u7684\u662fLocalDate\uff0c\u5c06\u4f1a\u629b\u51fa\u5f02\u5e38<\/p>\n<blockquote>\n<p>Duration\u9ed8\u8ba4\u8f93\u51fa\u683c\u5f0f\u4e3aPTnHnMnS\uff0c\u5982PT8H6M12.345S<br \/> \u4ee5PT\u524d\u7f00\u5f00\u5934\uff0cH:\u5c0f\u65f6 M:\u5206\u949f S:\u79d2<br \/> \u5f53Duration\u4e3a0\u65f6\uff0c\u9ed8\u8ba4\u4e3a\uff1aPT0S<\/p>\n<\/blockquote>\n<h4>1.1\u3001Duration\u5e38\u7528API\uff1a<\/h4>\n<table>\n<thead>\n<tr>\n<th>\u65b9\u6cd5<\/th>\n<th>\u8bf4\u660e<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>static Duration between(Temporal startInclusive, Temporal endExclusive)<\/td>\n<td>\u8ba1\u7b97\u4e24\u4e2a\u65f6\u95f4\u7684\u95f4\u9694\uff0c\u9ed8\u8ba4\u662f\u79d2<\/td>\n<\/tr>\n<tr>\n<td>boolean isNegative()<\/td>\n<td>\u68c0\u67e5Duration\u5b9e\u4f8b\u662f\u5426\u5c0f\u4e8e0\uff0c\u82e5\u5c0f\u4e8e0\u8fd4\u56detrue, \u82e5\u5927\u4e8e\u7b49\u4e8e0\u8fd4\u56defalse<\/td>\n<\/tr>\n<tr>\n<td>long toDays()<\/td>\n<td>\u5c06\u65f6\u95f4\u8f6c\u6362\u4e3a\u4ee5\u5929\u4e3a\u5355\u4f4d\u7684long\u503c<\/td>\n<\/tr>\n<tr>\n<td>long toHours()<\/td>\n<td>\u5c06\u65f6\u95f4\u8f6c\u6362\u4e3a\u4ee5\u65f6\u4e3a\u5355\u4f4d\u7684long\u503c<\/td>\n<\/tr>\n<tr>\n<td>long toMinutes()<\/td>\n<td>\u5c06\u65f6\u95f4\u8f6c\u6362\u4e3a\u4ee5\u5206\u949f\u4e3a\u5355\u4f4d\u7684long\u503c<\/td>\n<\/tr>\n<tr>\n<td>long getSeconds()<\/td>\n<td>\u5c06\u65f6\u95f4\u8f6c\u6362\u4e3a\u4ee5\u79d2\u4e3a\u5355\u4f4d\u7684long\u503c<\/td>\n<\/tr>\n<tr>\n<td>long toMillis()<\/td>\n<td>\u5c06\u65f6\u95f4\u8f6c\u6362\u4e3a\u4ee5\u6beb\u79d2\u4e3a\u5355\u4f4d\u7684long\u503c<\/td>\n<\/tr>\n<tr>\n<td>long toNanos()<\/td>\n<td>\u5c06\u65f6\u95f4\u8f6c\u6362\u4e3a\u4ee5\u7eb3\u79d2\u4e3a\u5355\u4f4d\u7684long\u503c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u4f7f\u7528\u793a\u4f8b\uff1a<\/p>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-bash\">LocalDateTime start <span class=\"token operator\">=<\/span> LocalDateTime.parse<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"2007-12-03T10:15:30\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\nLocalDateTime end <span class=\"token operator\">=<\/span> LocalDateTime.parse<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"2007-12-05T10:25:33\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\n\/\/between\u7684\u7528\u6cd5\u662fend-start\u7684\u65f6\u95f4\uff0c\u82e5start\u7684\u65f6\u95f4\u5927\u4e8eend\u7684\u65f6\u95f4\uff0c\u5219\u6240\u6709\u7684\u503c\u662f\u8d1f\u7684\nDuration duration <span class=\"token operator\">=<\/span> Duration.between<span class=\"token punctuation\">(<\/span>start, end<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\nString timeString <span class=\"token operator\">=<\/span> duration.toString<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> \/\/\u6b64\u6301\u7eed\u65f6\u95f4\u7684\u5b57\u7b26\u4e32\u8868\u793a\u5f62\u5f0f,\u4f7f\u7528\u57fa\u4e8eISO-8601\u79d2*\u7684\u8868\u793a\u5f62\u5f0f,\u4f8b\u5982 PT8H6M12.345S\nSystem.out.println<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u76f8\u5dee\u7684\u5929\u6570=\"<\/span>+duration.toDays<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">))<\/span><span class=\"token punctuation\">;<\/span>\nSystem.out.println<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u76f8\u5dee\u7684\u5c0f\u65f6=\"<\/span>+ duration.toHours<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">))<\/span><span class=\"token punctuation\">;<\/span>\nSystem.out.println<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u76f8\u5dee\u7684\u5206\u949f=\"<\/span>+duration.toMinutes<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">))<\/span><span class=\"token punctuation\">;<\/span>\nSystem.out.println<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u76f8\u5dee\u7684\u79d2\u6570=\"<\/span>+duration.getSeconds<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">))<\/span><span class=\"token punctuation\">;<\/span>\nSystem.out.println<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u76f8\u5dee\u7684\u6beb\u79d2=\"<\/span>+duration.toMillis<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">))<\/span><span class=\"token punctuation\">;<\/span>\nSystem.out.println<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u76f8\u5dee\u7684\u7eb3\u79d2=\"<\/span>+duration.toNanos<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">))<\/span><span class=\"token punctuation\">;<\/span>\nSystem.out.println<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"timeString\u65f6\u95f4=\"<\/span>+timeString<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\n\/\/isNegative\u8fd4\u56deDuration\u5b9e\u4f8b\u5bf9\u8c61\u662f\u5426\u4e3a\u8d1f \nSystem.out.println<span class=\"token punctuation\">(<\/span>Duration.between<span class=\"token punctuation\">(<\/span>start, end<span class=\"token punctuation\">)<\/span>.isNegative<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">))<\/span><span class=\"token punctuation\">;<\/span>\/\/false  end-start\u4e3a\u6b63\uff0c\u6240\u4ee5\u6b64\u5904\u8fd4\u56defalse\nSystem.out.println<span class=\"token punctuation\">(<\/span>Duration.between<span class=\"token punctuation\">(<\/span>end, start<span class=\"token punctuation\">)<\/span>.isNegative<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">))<\/span><span class=\"token punctuation\">;<\/span>\/\/true   start-end\u4e3a\u8d1f\uff0c\u6240\u4ee5\u6b64\u5904\u8fd4\u56detrue\nSystem.out.println<span class=\"token punctuation\">(<\/span>Duration.between<span class=\"token punctuation\">(<\/span>start, start<span class=\"token punctuation\">)<\/span>.isNegative<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">))<\/span><span class=\"token punctuation\">;<\/span>\/\/false start-start\u4e3a0\uff0c\u6240\u4ee5\u6b64\u5904\u4e3afalse\n<\/code><\/pre>\n<p>\u6267\u884c\u7ed3\u679c\uff1a<\/p>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-bash\">\u76f8\u5dee\u7684\u5929\u6570<span class=\"token operator\">=<\/span><span class=\"token number\">2<\/span>\n\u76f8\u5dee\u7684\u5c0f\u65f6<span class=\"token operator\">=<\/span><span class=\"token number\">48<\/span>\n\u76f8\u5dee\u7684\u5206\u949f<span class=\"token operator\">=<\/span><span class=\"token number\">2890<\/span>\n\u76f8\u5dee\u7684\u79d2\u6570<span class=\"token operator\">=<\/span><span class=\"token number\">173403<\/span>\n\u76f8\u5dee\u7684\u6beb\u79d2<span class=\"token operator\">=<\/span><span class=\"token number\">173403000<\/span>\n\u76f8\u5dee\u7684\u7eb3\u79d2<span class=\"token operator\">=<\/span><span class=\"token number\">173403000000000<\/span>\ntimeString\u65f6\u95f4<span class=\"token operator\">=<\/span>PT48H10M3S\n<\/code><\/pre>\n<h4>1.2\u3001\u8ba1\u7b97\u4e24\u4e2a\u201c\u65f6\u95f4\u201d\u95f4\u9694<\/h4>\n<p><strong>\u65b9\u6cd5\u4e00\uff1a<\/strong><\/p>\n<blockquote>\n<p>\u901a\u8fc7Duration\u8ba1\u7b97\u4e24\u4e2aLocalTime\u76f8\u5dee\u7684\u65f6\u95f4<\/p>\n<\/blockquote>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-bash\">LocalTime start <span class=\"token operator\">=<\/span> LocalTime.parse<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"10:51:01.167526700\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\nLocalTime end <span class=\"token operator\">=<\/span> LocalTime.parse<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"15:52:03.167526701\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\n\/\/between\u7684\u7528\u6cd5\u662fend-start\u7684\u65f6\u95f4\uff0c\u82e5start\u7684\u65f6\u95f4\u5927\u4e8eend\u7684\u65f6\u95f4\uff0c\u5219\u6240\u6709\u7684\u503c\u662f\u8d1f\u7684\nDuration duration <span class=\"token operator\">=<\/span> Duration.between<span class=\"token punctuation\">(<\/span>start, end<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\nSystem.out.println<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u4e24\u4e2a\u65f6\u95f4\u76f8\u5dee\uff1a\"<\/span>+duration.getSeconds<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>+<span class=\"token string\">\"\u79d2\uff0c\u76f8\u5dee\uff1a\"<\/span>+duration.toHours<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>+<span class=\"token string\">\"\u5c0f\u65f6\uff0c\u76f8\u5dee\uff1a\"<\/span>+duration.toMinutes<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>+<span class=\"token string\">\"\u5206\u949f\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\n\u7ed3\u679c\uff1a\n\u4e24\u4e2a\u65f6\u95f4\u76f8\u5dee\uff1a18062\u79d2\uff0c\u76f8\u5dee\uff1a5\u5c0f\u65f6\uff0c\u76f8\u5dee\uff1a301\u5206\u949f\n<\/code><\/pre>\n<p><strong>\u65b9\u6cd5\u4e8c\uff1a<\/strong><\/p>\n<blockquote>\n<p>ChronoUnit\u4e5f\u53ef\u4ee5\u8ba1\u7b97\u4e24\u4e2a\u5355\u5143\u4e4b\u95f4\u7684\u5dee\u503c\u3002<br \/> \u6211\u4eec\u4f7f\u7528ChronoUnit\u7c7b\u7684between() \u65b9\u6cd5\u6765\u6267\u884c\u76f8\u540c\u7684\u64cd\u4f5c<\/p>\n<\/blockquote>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-bash\">LocalTime start <span class=\"token operator\">=<\/span> LocalTime.parse<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"10:51:01.167526700\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\nLocalTime end <span class=\"token operator\">=<\/span> LocalTime.parse<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"15:52:03.167526701\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\nlong seconds <span class=\"token operator\">=<\/span> ChronoUnit.<span class=\"token environment constant\">SECONDS<\/span>.between<span class=\"token punctuation\">(<\/span>start , end <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\nlong hour <span class=\"token operator\">=<\/span> ChronoUnit.HOURS.between<span class=\"token punctuation\">(<\/span>start , end <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\nlong minute <span class=\"token operator\">=<\/span> ChronoUnit.MINUTES.between<span class=\"token punctuation\">(<\/span>start , end <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\nSystem.out.println<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u4e24\u4e2a\u65f6\u95f4\u76f8\u5dee\uff1a\"<\/span>+seconds+<span class=\"token string\">\"\u79d2\uff0c\u76f8\u5dee\uff1a\"<\/span>+hour+<span class=\"token string\">\"\u5c0f\u65f6\uff0c\u76f8\u5dee\uff1a\"<\/span>+minute+<span class=\"token string\">\"\u5206\u949f\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\n\u7ed3\u679c\uff1a\n\u4e24\u4e2a\u65f6\u95f4\u76f8\u5dee\uff1a18062\u79d2\uff0c\u76f8\u5dee\uff1a5\u5c0f\u65f6\uff0c\u76f8\u5dee\uff1a301\u5206\u949f\n<\/code><\/pre>\n<p><strong>\u65b9\u6cd5\u4e09\uff1a<\/strong><\/p>\n<blockquote>\n<p>\u901a\u8fc7LocalTime\u7c7b\u7684toSecondOfDay()\u65b9\u6cd5\uff0c\u8fd4\u56de\u65f6\u95f4\u5bf9\u5e94\u7684\u79d2\u6570\uff0c\u7136\u540e\u8ba1\u7b97\u51fa\u4e24\u4e2a\u65f6\u95f4\u76f8\u5dee\u7684\u95f4\u9694<\/p>\n<\/blockquote>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-bash\">LocalTime start <span class=\"token operator\">=<\/span> LocalTime.parse<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"10:51:01.167526700\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\nLocalTime end <span class=\"token operator\">=<\/span> LocalTime.parse<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"15:52:03.167526701\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\nint <span class=\"token function\">time<\/span> <span class=\"token operator\">=<\/span> end.toSecondOfDay<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> - start.toSecondOfDay<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\nSystem.out.println<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u4e24\u4e2a\u65f6\u95f4\u76f8\u5dee\uff1a\"<\/span>+time+<span class=\"token string\">\"\u79d2\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\n\u7ed3\u679c\uff1a\n\u4e24\u4e2a\u65f6\u95f4\u76f8\u5dee\uff1a18062\u79d2\n<\/code><\/pre>\n<p><strong>\u8ba1\u7b97\u4e24\u4e2a\u65f6\u95f4\u6233\u7684\u95f4\u9694<\/strong><br \/> \u9879\u76ee\u4e2d\u7ecf\u5e38\u4f1a\u6709\u65f6\u95f4\u6233\u7684\u503c\uff0c\u4e0b\u9762\u7684\u793a\u4f8b\u4e00\u8d77\u770b\u4e00\u4e0b\u5982\u4f55\u6bd4\u8f83\u65f6\u95f4\u6233\u3002<\/p>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-bash\">long todayTimeMillis <span class=\"token operator\">=<\/span> System.currentTimeMillis<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\nlong yesterdayTimeMillis <span class=\"token operator\">=<\/span> todayTimeMillis - <span class=\"token number\">24<\/span> * <span class=\"token number\">60<\/span> * <span class=\"token number\">60<\/span> * <span class=\"token number\">1000<\/span><span class=\"token punctuation\">;<\/span>\n\/\/\u901a\u8fc7Instant\u7c7b\uff0c\u53ef\u4ee5\u76f4\u63a5\u5c06\u6beb\u79d2\u503c\u8f6c\u6362\u4e3aInstant\u5bf9\u8c61\nInstant yesterday <span class=\"token operator\">=<\/span> Instant.ofEpochMilli<span class=\"token punctuation\">(<\/span>yesterdayTimeMillis<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\nInstant today <span class=\"token operator\">=<\/span> Instant.ofEpochMilli<span class=\"token punctuation\">(<\/span>todayTimeMillis<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\nDuration duration <span class=\"token operator\">=<\/span> Duration.between<span class=\"token punctuation\">(<\/span>yesterday, today<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\nSystem.out.println<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u5929\u6570 = \"<\/span>+duration.toDays<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">))<\/span><span class=\"token punctuation\">;<\/span> \/\/\u5929\u6570 <span class=\"token operator\">=<\/span> <span class=\"token number\">1<\/span>\n<\/code><\/pre>\n<h3>\u4e8c\uff1aPeriod - \u8ba1\u7b97\u4e24\u4e2a\u201c\u65e5\u671f\u201d\u95f4\u9694\u7684\u7c7b<\/h3>\n<p>Period \u5728\u6982\u5ff5\u4e0a\u548c Duration \u7c7b\u4f3c\uff0c\u533a\u522b\u5728\u4e8e Period \u662f\u4ee5\u5e74\u6708\u65e5\u6765\u8861\u91cf\u4e00\u4e2a\u65f6\u95f4\u6bb5\u3002Duration \u7528\u4e8e\u8ba1\u7b97\u4e24\u4e2a\u65f6\u95f4\u95f4\u9694\uff0cPeriod \u7528\u4e8e\u8ba1\u7b97\u4e24\u4e2a\u65e5\u671f\u95f4\u9694\uff0c\u6240\u4ee5 between() \u65b9\u6cd5\u53ea\u80fd\u63a5\u6536 LocalDate \u7c7b\u578b\u7684\u53c2\u6570\u3002<\/p>\n<p><mark>\u8bf4\u660e\uff1a<\/mark><br \/> Period\u53ef\u4ee5\u7528\u4e8e\u8ba1\u7b97\u4e24\u4e2a\u201c\u65e5\u671f\u201d\u4e4b\u95f4\u7684\u95f4\u9694\uff0c\u4f46\u662f\u5f97\u5230\u7684\u662f\u5e74\u6708\u65e5\uff0c\u5982\u4e24\u4e2a\u65e5\u671f\u76f8\u5dee1\u5e742\u67083\u5929\uff0c\u4f46\u662f\u6ca1\u529e\u6cd5\u77e5\u90531\u5e742\u67083\u5929\u5177\u4f53\u662f\u591a\u5c11\u5929\uff0c\u4e0b\u9762\u6709\u8bb2\u901a\u8fc7\u8c03\u7528ChronoUnit.between()\u65b9\u6cd5\u8ba1\u7b97\u4e24\u4e2a\u5355\u5143\u76f8\u5dee\u7684\u5929\u6570\u3001\u6708\u6570\u3001\u5e74\u6570\u2026<\/p>\n<blockquote>\n<p>Period\u9ed8\u8ba4\u8f93\u51fa\u683c\u5f0f\u4e3aPnYnMnD\uff0c\u5982P2021Y12M3D<br \/> \u4ee5P\u524d\u7f00\u5f00\u5934\uff0cY:\u5e74 M:\u6708\u4efd D:\u5929<br \/> \u5f53Period\u4e3a0\u65f6\uff0c\u9ed8\u8ba4\u4e3a\uff1aP0D<\/p>\n<\/blockquote>\n<h4>2.1\u3001Period\u5e38\u7528API\uff1a<\/h4>\n<table>\n<thead>\n<tr>\n<th>\u65b9\u6cd5<\/th>\n<th>\u8bf4\u660e<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>static Period between(LocalDate startDateInclusive, LocalDate endDateExclusive)<\/td>\n<td>\u8ba1\u7b97\u4e24\u4e2a\u65e5\u671f\u4e4b\u95f4\u7684\u95f4\u9694<\/td>\n<\/tr>\n<tr>\n<td>boolean isNegative()<\/td>\n<td>\u68c0\u67e5\u6b64\u65f6\u95f4\u6bb5\u7684\u4e09\u4e2a\u5355\u4f4d\u4e2d\u662f\u5426\u6709\u4e00\u4e2a\u4e3a\u8d1f\u6570\u3002\u8fd9\u5c06\u68c0\u67e5\u5e74\uff0c\u6708\u6216\u5929\u7684\u5355\u4f4d\u662f\u5426\u5c0f\u4e8e\u96f6\u3002\u5982\u679c\u6b64\u671f\u95f4\u7684\u4efb\u4f55\u5355\u4f4d\u4e3a\u8d1f\uff0c\u5219\u4e3atrue<\/td>\n<\/tr>\n<tr>\n<td>int getYears()<\/td>\n<td>\u83b7\u53d6\u5e74<\/td>\n<\/tr>\n<tr>\n<td>int getMonths()<\/td>\n<td>\u83b7\u53d6\u6708<\/td>\n<\/tr>\n<tr>\n<td>int getDays()<\/td>\n<td>\u83b7\u53d6\u65e5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-bash\">Period p <span class=\"token operator\">=<\/span> Period.of<span class=\"token punctuation\">(<\/span><span class=\"token number\">2021<\/span>, <span class=\"token number\">12<\/span>, <span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\nSystem.out.println<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u5e74\u6708\u65e5\uff1a\"<\/span>+p<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\np <span class=\"token operator\">=<\/span> Period.ofYears<span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\nSystem.out.println<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u5e74\uff1a\"<\/span>+p<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\np <span class=\"token operator\">=<\/span> Period.ofWeeks<span class=\"token punctuation\">(<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\nSystem.out.println<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u5468\u7684\u5929\u6570\"<\/span>+p<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\nPeriod period <span class=\"token operator\">=<\/span> Period.of<span class=\"token punctuation\">(<\/span><span class=\"token number\">2021<\/span>,-1,8<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\nSystem.out.println<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u6821\u9a8c\u5e74\u6708\u65e5\u4efb\u4f55\u4e00\u4f4d\u503c\u662f\u5426\u6709\u8d1f\u6570\uff1a{}\"<\/span>,period.isNegative<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">))<\/span><span class=\"token punctuation\">;<\/span>\/\/true\n<\/code><\/pre>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-bash\">\u5e74\u6708\u65e5\uff1aP2021Y12M3D\n\u5e74\uff1aP1Y\n\u5468\u7684\u5929\u6570P14D\n<\/code><\/pre>\n<p><mark>\u6ce8\u610f<\/mark><\/p>\n<ul>\n<li>getYears()\u3001getMonths()\u3001getDays()\u53ea\u80fd\u8f93\u51faPeriod\u4e2d\u7684\u5e74\u6708\u65e5\u3002\u50cf\u5982\u4e0b\u7684\u793a\u4f8b\uff0c\u60f3\u77e5\u9053\u4e24\u4e2a\u65e5\u671f\u76f8\u5dee\u591a\u5c11\u5929\u9700\u8981\u7528ChronoUnit.between()\u65b9\u6cd5\u3002<\/li>\n<\/ul>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-bash\">LocalDate start <span class=\"token operator\">=<\/span> LocalDate.of<span class=\"token punctuation\">(<\/span><span class=\"token number\">2020,2<\/span>,28<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\nLocalDate end <span class=\"token operator\">=<\/span> LocalDate.of<span class=\"token punctuation\">(<\/span><span class=\"token number\">2021,12<\/span>,3<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\nPeriod period <span class=\"token operator\">=<\/span> Period.between<span class=\"token punctuation\">(<\/span>start,end<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\nSystem.out.println<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u4e24\u4e2a\u65f6\u95f4\u4e4b\u95f4\u7684\u5dee\u503c \u5e74\uff1a\"<\/span>+period.getYears<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>+<span class=\"token string\">\"\uff0c\u6708\uff1a\"<\/span>+period.getMonths<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>+<span class=\"token string\">\"\uff0c\u65e5\uff1a\"<\/span>+period.getDays<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">))<\/span><span class=\"token punctuation\">;<\/span>\n<\/code><\/pre>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-bash\">\u4e24\u4e2a\u65f6\u95f4\u4e4b\u95f4\u7684\u5dee\u503c  \u5e74\uff1a1\uff0c\u6708\uff1a9\uff0c\u65e5\uff1a5\n<\/code><\/pre>\n<h4>2.2\u3001\u8ba1\u7b97\u4e24\u4e2a\u65e5\u671f\u76f8\u5dee\u7684\u5177\u4f53\u5929\u6570<\/h4>\n<p><strong>\u65b9\u6cd5\u4e00\uff1a<\/strong><br \/> ChronoUnit\u4e5f\u53ef\u4ee5\u8ba1\u7b97\u4e24\u4e2a\u5355\u5143\u4e4b\u95f4\u7684\u5929\u6570\u3001\u6708\u6570\u6216\u5e74\u6570\u3002<br \/> \u6211\u4eec\u4f7f\u7528ChronoUnit\u7c7b\u7684between() \u65b9\u6cd5\u6765\u6267\u884c\u76f8\u540c\u7684\u64cd\u4f5c\uff1a<\/p>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-bash\">LocalDate start <span class=\"token operator\">=<\/span> LocalDate.of<span class=\"token punctuation\">(<\/span><span class=\"token number\">2020,2<\/span>,28<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\nLocalDate end <span class=\"token operator\">=<\/span> LocalDate.of<span class=\"token punctuation\">(<\/span><span class=\"token number\">2021,12<\/span>,3<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\nlong seconds <span class=\"token operator\">=<\/span> ChronoUnit.DAYS.between<span class=\"token punctuation\">(<\/span>start , end <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\u7ed3\u679c\uff1a644\nlong <span class=\"token assign-left variable\">month<\/span><span class=\"token operator\">=<\/span> ChronoUnit.MONTHS.between<span class=\"token punctuation\">(<\/span>start , end <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\u7ed3\u679c21\nlong <span class=\"token assign-left variable\">year<\/span><span class=\"token operator\">=<\/span> ChronoUnit.YEARS.between<span class=\"token punctuation\">(<\/span>start , end <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\u7ed3\u679c <span class=\"token number\">1<\/span>\n<\/code><\/pre>\n<p><strong>\u65b9\u6cd5\u4e8c\uff1a<\/strong><\/p>\n<blockquote>\n<p>\u8c03\u7528LocalDate\u7c7b\u7684toEpochDay\u65b9\u6cd5\uff0c\u8fd4\u56de\u8ddd\u79bb1970\u5e741\u67081\u65e5\u7684long\u503c<br \/> \u6b64\u65b9\u6cd5\u53ea\u80fd\u8ba1\u7b97\u4e24\u4e2aLocalDate\u65e5\u671f\u95f4\u7684\u5929\u6570\uff0c\u4e0d\u80fd\u8ba1\u7b97\u6708\u4efd\u3001\u5e74\u6570<\/p>\n<\/blockquote>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-bash\">LocalDate start <span class=\"token operator\">=<\/span> LocalDate.of<span class=\"token punctuation\">(<\/span><span class=\"token number\">2020,2<\/span>,28<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\nLocalDate end <span class=\"token operator\">=<\/span> LocalDate.of<span class=\"token punctuation\">(<\/span><span class=\"token number\">2021,12<\/span>,3<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\nSystem.out.println<span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u4e24\u4e2a\u65f6\u95f4\u4e4b\u95f4\u7684\u76f8\u5dee\u7684\u5929\u6570: \"<\/span>+<span class=\"token punctuation\">(<\/span>end.toEpochDay<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>-start.toEpochDay<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">))<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> \/\/644\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"java8 Duration\u3001Period\u7c7b - \u8ba1\u7b97\u4e24\u4e2a\u201c\u65f6\u95f4\u201d\u95f4\u9694\u3001\u8ba1\u7b97\u4e24\u4e2a\u201c\u65e5\u671f\u201d\u95f4\u9694java8\u4e2d\u5f15\u5165\u4e86\u4e24\u4e2a\u4e0e\u65e5\u671f\u76f8\u5173\u7684\u65b0\u7c7bPeriod-\u8ba1\u7b97\u4e24\u4e2a\u201c\u65e5...","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"_links":{"self":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts\/8460"}],"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=8460"}],"version-history":[{"count":0,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts\/8460\/revisions"}],"wp:attachment":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/media?parent=8460"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/categories?post=8460"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/tags?post=8460"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}