Question

I’m trying to make a multithreaded server/client app with java ! this code is for listen() method in a class of a package that named Bsocket (iserver.core.socket) :

 try {
     serverSocket = new ServerSocket(port);
 }catch(IOException e ){
     ui.log(e.toString());//*
 }
while (true){
    try{
        clienSocket = serverSocket.accept();
        ui.log("Incomming Connection.");//*
        new connectionHandler(clienSocket, ui);
    }catch(IOException e ){
        ui.log(e.toString());
    }
}

ui.log("Incomming Connection."); is a method in below of main class of Bgui (iserver.core.ui).Bgui is a jframe that contain a textarea and something else ! the problem is when the accept methods executed , the ui.log did not works ! whats wrong here ?

Answer 1

You need to separate UI threads from your own network service threads. accept() is blocking (obviously) and it freezes your application until you get a new client, and freezes again waiting for more clients.