udprecv.java

简易聊天室,可能不很完善,请大家多提宝贵意见啊,本人纯属新手啊,请大家多多扶持

package com.briup.test;

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

public class UdpRecv {
 public static void main(String[] args) {
	DatagramSocket ds = null;
	try {
		ds = new DatagramSocket(8889);
	} catch (SocketException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}
	byte [] buf=new byte[1024];
	DatagramPacket dp =new DatagramPacket(buf,1024);
	try {
		ds.receive(dp);
	} catch (IOException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}
	String strRecv=new String (
			dp.getData(),0,dp.getLength())+"from"+
			dp.getAddress().getHostAddress()+":"+dp.getPort();
	System.out.println(strRecv);
	ds.close();
}
}