收发数字

 

一旦建立了连接，服务端和客户端就可以通过Socket进行通信了 
1. 客户端打开输出流，并发送数字 110 
2. 服务端打开输入流，接受数字 110，并打印

• Server.java
• Client.java

 

 

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package socket;   import java.io.IOException; import java.io.OutputStream; import java.net.Socket; import java.net.UnknownHostException;   public class Client {       public static void main(String[] args) {           try {             Socket s = new Socket("127.0.0.1", 8888);               // 打开输出流             OutputStream os = s.getOutputStream();               // 发送数字110到服务端             os.write(110);             os.close();               s.close();         } catch (UnknownHostException e) {             // TODO Auto-generated catch block             e.printStackTrace();         } catch (IOException e) {             // TODO Auto-generated catch block             e.printStackTrace();         }     } }

 

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package socket;   import java.io.IOException; import java.io.InputStream; import java.net.ServerSocket; import java.net.Socket;   public class Server {       public static void main(String[] args) {         try {               ServerSocket ss = new ServerSocket(8888);               System.out.println("监听在端口号:8888");             Socket s = ss.accept();               //打开输入流             InputStream is = s.getInputStream();               //读取客户端发送的数据             int msg = is.read();             //打印出来             System.out.println(msg);             is.close();               s.close();             ss.close();         } catch (IOException e) {             // TODO Auto-generated catch block             e.printStackTrace();         }       } }