myserversocket.java

3 pairs of sample codes for basic net apps: . Socket server/client . start the server first . Datagr

import java.net.*;
import java.io.*;

public class MyServerSocket {
    int num = 0;
    boolean isListening = true;

    public static void main(String[] args) {
        new MyServerSocket().startServer();
    }

    private void startServer(){
        try {
        ServerSocket server = new ServerSocket(3001);
//        while(isListening){
                Socket socket = server.accept();
                System.out.println("## server accept a request:" + num++
                                   + "    client address:" + socket.getInetAddress().getHostAddress()
                                   + "    port:" + socket.getPort());

                PrintWriter out = new PrintWriter(socket.getOutputStream(), true);
                out.println("Hello from server.");

                BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
                System.out.println("## client wrote: " + in.readLine());
//            }
        }
        catch (IOException ex) {
            ex.printStackTrace();
        }

    }
}