web服务器解决方案_服务器连接不上是什么原因
我一直在尝试使用Arduino设置Web服务器 . 我有一台UNO和一台HanRun HR91105A我上网了，我正在使用WebServer示例的修改版来测试我的代码 . 事实上它确实起作用了 . 但是在设置端口转发后，连接突然变得不稳定 . 它连接并工作几分钟，然后突然我甚至无法ping它 . 尝试ping Arduino会导致请求超时 . 在线研究表明有两种可能：
1.)所有RAM都用完了
2.)以太网屏蔽有故障
以下是我的代码
#include
#include
// Enter a MAC address and IP address for your controller below.
// The IP address will be dependent on your local network:
byte mac[] = {
0x44, 0x00, 0x10, 0x20, 0x8C, 0x0A
};
IPAddress ip(192,168,1,90);
// Initialize the Ethernet server library
// with the IP address and port you want to use
// (port 80 is default for HTTP):
EthernetServer server(8081);
void setup() {
// Open serial communications and wait for port to open:
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for native USB port only
}
// start the Ethernet connection and the server:
Ethernet.begin(mac, ip);
server.begin();
Serial.print("server is at ");
Serial.println(Ethernet.localIP());
}
void loop() {
// listen for incoming clients
EthernetClient client = server.available();
if (client) {
Serial.println("new client");
// an http request ends with a blank line
boolean currentLineIsBlank = true;
while (client.connected()) {
if (client.available()) {
char c = client.read();
Serial.write(c);
// if you've gotten to the end of the line (received a newline
// character) and the line is blank, the http request has ended,
// so you can send a reply
if (c == '\n' && currentLineIsBlank) {
// send a standard http response header
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println("Connection: close");
client.println("Refresh: 2");
client.println();
client.println("");
//-----------------Type in outputs below-------------------------------------
client.println("");
client.print("Hello World!");
client.print("
");
client.print("Sensor Data");
client.println("
");
client.print("
");
client.print("Pressure:");
client.println("
");
client.print("
");
client.print("Acceleration:");
client.println("
");
client.println("
client.println("");
break;
//-----------------End of outputs--------------------------------------------
}
if (c == '\n') {
// you're starting a new line
currentLineIsBlank = true;
} else if (c != '\r') {
// you've gotten a character on the current line
currentLineIsBlank = false;
}
}
}
// give the web browser time to receive the data
delay(1);
// close the connection:
client.stop();
Serial.println("client disconnected");
}
}
另外，arduino确实有一个静态IP，所以我很确定它不是DHCP租约到期的问题 .
我非常怀疑屏蔽是否有故障，因为它在运行时变得非常热 . 另外它是一个仿冒品 . 但我不能忽视我编码效率低下的可能性，因为我不是很有经验 . 任何帮助，将不胜感激 . 谢谢 .
