String based communication between Socket : Socket « Network Protocol « Java






  1. Java
  2. Network Protocol
  3. Socket

String based communication between Socket

      


import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.InetAddress;
import java.net.Socket;

public class BufferedSocketClient {

  public static void main(String args[]) throws Exception {
    Socket socket1;
    int portNumber = 1777;
    String str = "initialize";

    socket1 = new Socket(InetAddress.getLocalHost(), portNumber);

    BufferedReader br = new BufferedReader(new InputStreamReader(socket1.getInputStream()));

    PrintWriter pw = new PrintWriter(socket1.getOutputStream(), true);

    pw.println(str);

    while ((str = br.readLine()) != null) {
      System.out.println(str);
      pw.println("bye");

      if (str.equals("bye"))
        break;
    }

    br.close();
    pw.close();
    socket1.close();
  }

}


///


import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;

public class BufferedSocketServer {

  public static void main(String args[]) throws Exception {
    int cTosPortNumber = 1777;
    String str;

    ServerSocket servSocket = new ServerSocket(cTosPortNumber);
    System.out.println("Waiting for a connection on " + cTosPortNumber);

    Socket fromClientSocket = servSocket.accept();
    PrintWriter pw = new PrintWriter(fromClientSocket.getOutputStream(), true);

    BufferedReader br = new BufferedReader(new InputStreamReader(fromClientSocket.getInputStream()));

    while ((str = br.readLine()) != null) {
      System.out.println("The message: " + str);

      if (str.equals("bye")) {
        pw.println("bye");
        break;
      } else {
        str = "Server returns " + str;
        pw.println(str);
      }
    }
    pw.close();
    br.close();

    fromClientSocket.close();
  }

}








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