前言
Java如何基于UDP实现server和client之间的通信，有以下方法可以参考
发送端
发送方
MyClient.java
public class MyClient implements Runnable {
//本机的IP
private static final String ServerIP = "192.168.124.12" ;
private static final int ServerPort = 4568;
@Override
public void run() {
try {
Thread.sleep(500);
} catch (InterruptedException e1) {
e1.printStackTrace();
}
try {
InetAddress serverAddr = InetAddress.getByName(ServerIP );
DatagramSocket socket = new DatagramSocket();
byte[] buf;
buf = ( "abc").getBytes();
DatagramPacket packet = new DatagramPacket(buf, buf.length,
serverAddr, ServerPort);
socket.send(packet);
} catch (Exception e) {
}
}
}
接收端
接收数据的
MyServer.java
public class MyServer implements Runnable {
private static final String ServerIP = "192.168.124.12" ;
private static final int ServerPort = 4568;
@Override
public void run() {
try {
InetAddress serverAddr = InetAddress.getByName(ServerIP);
DatagramSocket socket = new DatagramSocket(ServerPort,serverAddr);
byte[] buf = new byte[25];
DatagramPacket packet = new DatagramPacket(buf, buf.length);
socket.receive(packet);
System.out.println(new String(packet.getData()).trim());
} catch (Exception e) {
}
}
}
测试
测试
Solution.java
public class Solution{
public static void main(String[] args){
new Thread(new MyServer()).start();
try {
Thread.sleep(500);
} catch (InterruptedException e) {
}
new Thread( new MyClient()).start();
}
}
运行Solution就可以在控制台看到服务端接收到的数据了。
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