Java線程，從主JFrame GUI關閉服務器線程

我有一個程序啓動一個被動服務器，該服務器爲服務器套接字的每個連接生成一個連接處理程序。我想找到一個雄辯的方法來關閉服務器套接字並釋放端口。目前，我不知道如何中斷Socket.accept方法。我一直在使用同步方法在另一個線程中設置標誌，但是Socket.accpet阻塞，直到建立連接。Java線程，從主JFrame GUI關閉服務器線程

我被動服務器代碼

package NetSecConsole; 

import java.io.*; 
import java.net.*; 
import javax.swing.SwingUtilities; 


public class PassiveServer implements Runnable 
{ 
    Thread runner; 
    int port = 20000; 
    MainFrame mainFrame; 
    ServerSocket s = null; 

    public PassiveServer(MainFrame mf, int hostPort) 
    { 
     mainFrame = mf; 
     port = hostPort; 
     try 
     { 
      s = new ServerSocket(hostPort); 
     } 
     catch (Exception e) 
     { 
      newStatus("Server [Constructor]: Could not open server socket! " + e); 
     } 
    } 

    public void start() 
    { 
     if (runner == null) 
     { 
      runner = new Thread(this); 
      runner.start(); 
     } 
    } 

    @Override 
    public void run() 
    { 
     try 
     { 
      int connCount = 1; 
      for (;;) 
      { 
       // Sit and wait for a connection 
       newStatus("Server [run]: Waiting for connection to port " + Integer.toString(port) + "..."); 
       Socket incomingConnection = s.accept(); 

       // Pass the connection off to a connection handler thread 
       newStatus("Server [run]: Got connection on port " + Integer.toString(port)); 
       final ConnectionHandler conHand = new ConnectionHandler(mainFrame, incomingConnection, connCount); 

       // Start the connection handler, then continue; 
       conHand.start(); 
       connCount++; 
      } 
     } 
     catch (IOException e) 
     { 
      newStatus("Server [run]: IOException: " + e); 
     } 
    } 

    public final void newStatus(final String arg) 
    { 
     Runnable sendMsg = new Runnable() 
     { 
      @Override 
      public void run() 
      { 
        mainFrame.newStatusLine(arg); 
      } 
     }; 
     SwingUtilities.invokeLater(sendMsg); 
    } 

}

來源

2014-02-26 KDecker