我正在尝试创建一个将在单独的线程上侦听的 UDP 侦听器。它第一次工作正常,但是当我停止连接然后重新启动它时,它给了我错误。
listenerRunnable = new Runnable() {
public void run() {
//This thread will listen keep listening to the UDP traffic and put it to the log source string
try {
sock = new DatagramSocket(portNumber);
} catch (SocketException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
while(keepListening) {
try {
pack = new DatagramPacket(recievedData, BUFFERSIZE);
sock.receive(pack);
String data = new String(pack.getData(), 0, pack.getLength());
addToLog(data);
System.out.println(data);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
sock.close();
}
}
};
/**
* Function to start the listening thread.
*/
public void startListening(int portNum) {
keepListening = true;
portNumber = portNum;
listenerThread = new Thread(listenerRunnable);
logSource_buffer = "";
logSourcehtml_buffer = "";
logSourcehtml_temp = "";
ipListIndex_beg = 0;
ipListIndex_end = -1;
if(!listenerThread.isAlive()) {
listenerThread.start();
}
}
/**
* stops the listening thead. When the listening thread sees that keepListening is set to false
* it will reach the end of its loop, close the socket, and the thread will die.
*/
public void stopListening() {
keepListening = false;
}
它给了我以下错误:
logUpdatingThread 已进入同步块!!!java.net.SocketException:无法识别的 Windows 套接字错误:0:无法在 java.net.PlainDatagramSocketImpl.bind(未知来源)的 java.net.PlainDatagramSocketImpl.bind0(本机方法)处绑定
它指向 sock.recieve(pack); 似乎由于某种原因套接字没有关闭,因为我认为它在 sock.recieve(pack) 等待并且永远不会退出 while 循环来关闭套接字。我将如何解决这个问题?
谢谢