Java如何使服务器允许连接到套接字端口?

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在Java编程中,如何使服务器允许连接到套接字端口? 以下示例显示如何使服务器通过使用ServerSocket…

在Java编程中,如何使服务器允许连接到套接字端口?

以下示例显示如何使服务器通过使用ServerSocket类的server.accept()方法和Socket类的sock.getInetAddress()方法来允许连接到套接字端口:`1234

package com.yiibai;    import java.io.IOException;  import java.net.InetAddress;  import java.net.ServerSocket;  import java.net.Socket;    public class ConnectingSocket {      public static void main(String[] args) {        try {           ServerSocket server = new ServerSocket(12345);           while (true) {              System.out.println("Listening");              Socket sock = server.accept();              InetAddress addr = sock.getInetAddress();              System.out.println("Connection made to " + addr.getHostName() + " (" + addr.getHostAddress() + ")");              pause(5000);              sock.close();           }        } catch (IOException e) {           System.out.println("Exception detected: " + e);        }     }        private static void pause(int ms) {          try {              Thread.sleep(ms);          } catch (InterruptedException e) {          }      }  }  

上述代码示例将产生以下结果 –

Listening  Connection made to 127.0.0.1 (127.0.0.1)  Listening  

客户端代码参考如下 –

package com.yiibai;    import java.io.IOException;  import java.net.InetAddress;  import java.net.Socket;  import java.net.SocketException;  import java.net.UnknownHostException;    public class SocketClient {      public static void main(String[] args) {          try {              //InetAddress addr = InetAddress.getByName("127.0.0.1");              Socket theSocket = new Socket("127.0.0.1", 12345);              System.out.println("Connected to " + theSocket.getInetAddress() + " on port " + theSocket.getPort()                      + " from port " + theSocket.getLocalPort() + " of " + theSocket.getLocalAddress());          } catch (UnknownHostException e) {              System.err.println("I can't find " + e);          } catch (SocketException e) {              System.err.println("Could not connect to " + e);          } catch (IOException e) {              System.err.println(e);          }      }  }  

贺, 贺朝

关于作者: 贺朝

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