网络编程

 1 public class Send {//发送端
 2     public static void main(String[] args) throws IOException {
 3         DatagramSocket socket = new DatagramSocket(888);//创建socket相当于创建码头
 4 
 5         Bu睿共享fferedReader reader = new BufferedReader(new InputStreamReader(System.in));
 6         while(true) {
 7             String data = reader.readLine();
 8             byte[] datas = data.getBytes();
 9 
10             DatagramPacket packet = new DatagramPacket(datas, 0, datas.length, new InetSocketAddress("localhost", 666));//创建packet相当于创建集装箱
11             socket.send(packet);//接货
12             if (data.equals("bye")){
13                 break;
14             }
15 
16         }
17         socket.close();
18     }
19睿共享 }

 1 //接收端
睿共享 2 public class Receiving {
 3     public static void main(String[] args) throws IOException {
 4         DatagramSocket socket = new DatagramSocket(666);
 5 
 6         while(true) {
 7      睿共享       byte[] container = new byte[1024];
 8 
 9             DatagramPacket packet = new DatagramPacket(container,0,container.length);
10             socket.receive(packet);
11 
12             //断开连接  bye
13             byte[] data = packet.getData();
14             String receiveData = new String(data, 0, data.length);
15 
16             System.out.println(receiveData);
17 
18             if (receiveData.equals("bye")){
19                 break;
20             }
21             socket.receive(packet);//阻塞接收包裹
22         }
23         socket.clos睿共享e();
24     }
25 }