1 package com.yyq;
2
3 import java.io.BufferedReader;
4 import java.io.InputStreamReader;
5 import java.net.DatagramPacket;
6 import java.net.DatagramSocket;
7 import java.net.InetAddress;
8 import java.net.SocketException;
9
10 public class UdpSend2 {
11 public static void main(String[] args) throws Exception {
12 //1. 创建服务
13 DatagramSocket ds = new DatagramSocket(5555);
14 //2.从键盘中录入数据
15 BufferedReader bufr = new BufferedReader(new InputStreamReader(System.in));
16 String line = null;
17 while((line = bufr.readLine())!=null){
18 if("88".equals(line)){
19 break;
20 }
21 byte[] buf = line.getBytes();
22 DatagramPacket dp = new DatagramPacket(buf,buf.length,InetAddress.getLocalHost(),10001);
23 ds.send(dp);
24 //ds.close();
25 }
26 }
27 }
28
29
30
31
32 package com.yyq;
33
34 import java.io.IOException;
35 import java.net.DatagramPacket;
36 import java.net.DatagramSocket;
37 import java.net.SocketException;
38
39 public class UdpRece2 {
40 public static void main(String[] args) throws Exception {
41 DatagramSocket ds = new DatagramSocket(10001);
42 while(true){
43 byte[] buf = new byte[1024];
44 DatagramPacket dp = new DatagramPacket(buf,buf.length);
45 ds.receive(dp);
46 String ip = dp.getAddress().getHostAddress();
47 String data = new String(dp.getData(),0,dp.getLength());
48 System.out.println(ip + ":" + data +":"+dp.getPort());
49 System.out.println("haode");
50 }
51 }
52 }
