package com.socket;

import java.io.IOException;

import java.net.*;

/**

* UDP协议，一般用DatagramSocket

*/

public class UdpServer {

public static void main(String[] args) {

try {

DatagramSocket server = new DatagramSocket(5060);

DatagramPacket packet = new DatagramPacket(new byte[1024], 1024);

server.receive(packet);

System.out.println(packet.getAddress().getHostName() + "(" + packet.getPort() + "):" + new String(packet.getData()));

packet.setData("HelloWorld Client".getBytes());

packet.setPort(5070);

packet.setAddress(InetAddress.getLocalHost());

server.send(packet);

server.close();

} catch (IOException e) {

e.printStackTrace();

}

}

}