udp客户端源代码

package com.zy;

import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;

public class Udpclinet {

public static void main(String[] args) throws Exception {
    // TODO Auto-generated method stub
    DatagramSocket  ds=new DatagramSocket(8888);
    String s="你好服务器";
    DatagramPacket dp=new DatagramPacket(s.getBytes(), s.getBytes().length,InetAddress.getLocalHost(),9999 );
    ds.send(dp);
    byte b[]=new byte[1024];
    DatagramPacket ndp=new DatagramPacket(b, b.length);
    ds.receive(ndp);
    System.out.println(new String(b).trim());
    ds.close();
}

}