如何使用Socket方法？

Question

我是Android編程的初學者。我想用這個方法：

Socket socket; 
socket.getInetAddress() ; 

我想在一個TextView IP地址打印到我連接的。 這可能嗎？我應該怎麼做？

謝謝！

我想這一點，但沒有工作

public void onClick(View v) { 

    Socket s = new Socket(); 
    String host ="10.10.20.xxxx"; 

try { 
    s.connect(new InetSocketAddress(host, 6000), 1000); 

    InetAddress inetAddress = s.getLocalAddress(); 
    String ip = inetAddress.getHostAddress(); 
    //Now, I would like to have printed out the IP-address 
    Toast.makeText(getBaseContext(), ip , Toast.LENGTH_SHORT).show(); 
//But nothing happens 
} catch (IOException e) { 
    e.printStackTrace(); 
    } 
} 
} 

Answer 1

要獲得一個套接字連接到主機的地址，你應該使用getInetAddress()而非getLocalAddress()。因此，您的代碼可能如下所示：

public void onClick(View v) { 

    Socket s = new Socket(); 
    String host ="10.10.20.xxxx"; 

    try { 
     s.connect(new InetSocketAddress(host, 6000), 1000); 

     InetAddress inetAddress = s.getInetAddress();  // <---- Here! 
     String ip = inetAddress.getHostAddress(); 

     Toast.makeText(getBaseContext(), ip , Toast.LENGTH_SHORT).show(); 

    } catch (IOException e) { 
     e.printStackTrace(); 
    } 
}