网络编程-UDP2

package com.yyq;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
import java.net.SocketException;

public class UdpSend2 {
    public static void main(String[] args) throws Exception {
        //1. 创建服务
        DatagramSocket ds = new DatagramSocket(5555);
        //2.从键盘中录入数据
        BufferedReader bufr = new BufferedReader(new InputStreamReader(System.in));
        String line = null;
        while((line = bufr.readLine())!=null){
            if("88".equals(line)){
                break;
            }
            byte[] buf = line.getBytes();
            DatagramPacket dp = new DatagramPacket(buf,buf.length,InetAddress.getLocalHost(),10001);
            ds.send(dp);
            //ds.close();
        }
    }
}




package com.yyq;

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

public class UdpRece2 {
    public static void main(String[] args) throws Exception {
        DatagramSocket ds = new DatagramSocket(10001);
        while(true){
            byte[] buf = new byte[1024];
            DatagramPacket dp = new DatagramPacket(buf,buf.length);
            ds.receive(dp);
            String ip = dp.getAddress().getHostAddress();
            String data = new String(dp.getData(),0,dp.getLength());
            System.out.println(ip + ":" + data +":"+dp.getPort());
            System.out.println("haode");
        }
    }
}