Java 示例 - 单个客户端的套接字

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  问题描述

  如何使套接字向单个客户端显示消息？
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  解决方案

  以下示例演示了如何借助 Socket 类的 ssock.accept() 方法制作一个向单个客户端显示消息的套接字。

  
  import java.io.PrintStream;
  import java.net.ServerSocket;
  import java.net.Socket;
  public class BeerServer {
     public static void main(String args[]) throws Exception {
        ServerSocket ssock = new ServerSocket(1234);
        System.out.println("Listening");
        Socket sock = ssock.accept();
        ssock.close(); 
        PrintStream ps = new PrintStream(sock.getOutputStream());
        
        for (int i = 10; i >= 0; i--) {
           ps.println(i + " from Java Source and Support.");
        }
        ps.close();
        sock.close();
     }
  }
  

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  结果

  上面的代码示例将产生以下结果。

  
  Listening
  10 from Java Source and Support
  9 from Java Source and Support
  8 from Java Source and Support
  7 from Java Source and Support
  6 from Java Source and Support
  5 from Java Source and Support
  4 from Java Source and Support
  3 from Java Source and Support
  2 from Java Source and Support
  1 from Java Source and Support
  0 from Java Source and Support