udprecv.java

一个关于服务器和客户端的聊天程序,简单好用,类似

import java.net.*;
public class UdpRecv {
	
	/**
	 * Method main
	 *
	 *
	 * @param args
	 *
	 */
	public static void main(String[] args) throws Exception
	{
		// TODO: Add your code here
		DatagramSocket ds = new DatagramSocket(3000);
		byte [] buf = new byte[1024];
		DatagramPacket dp = new DatagramPacket(buf,1024);
		ds.receive(dp);
		//String strInfo = 
		System.out.println(new String(dp.getData(),0,dp.getLength()) +
		" from " + dp.getAddress().getHostAddress() + ":" + dp.getPort());
		ds.close();
		 
	}	
}