udpserver.java

局域网聊天的小程序

package day16;

import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.SocketException;

public class UDPServer {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		try {
			
			DatagramSocket ds=new DatagramSocket(7777);
			byte[] mes=new byte[100];
			DatagramPacket dp=new DatagramPacket(mes,mes.length);
			ds.receive(dp);
			
			System.out.println(new String(dp.getData()));
			
		} catch (SocketException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

}