Android中的WiFi网络编程

Question

i want to program a server/client app in android. i have one server class on my pc and client on my android phone. all permissions are ok. Here is client:

        try {
        mysocket = new Socket("My PC IP Address", 4444);
    } catch (UnknownHostException e) {...
    } catch (IOException e) {...
    }

here is server:

        try {
        myServerSocket = new ServerSocket(4444);
    } catch (IOException e) {...
    }

    Socket clientSocket = null;
    try {
        clientSocket = serverSocket.accept();
        System.out.println("Connection Established.");
    } catch (IOException e) {
    }

I uses "Connectify" program on my pc to have an (virtual)access point such that my phone connect to that. But when I try to connect to server in my android app, it hangs and then throws Timed-out exception.

Answer 1

This code doesn't look bad.

Are you certain Connectify is working well? You shoud try running both the server and the client you have built on your PC, using two different processes (as an example the server as a standalone and the client in the Android Emulator).

If it works properly from localhost to localhost:4444, the the connection is the cause of the problem, not your code. And otherwise, you will easily find the bug in your code.