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  JavaFX chat  (Read 3493 times)
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Offline jasox

Senior Newbie





« Posted 2011-10-09 14:15:10 »

I am trying to make chat program in java (javafx as client side). I can not understand why Bufferedreader bReader can not read text that I am sending to server.

client side
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package ba.jaso;

import java.awt.List;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.Socket;

import javafx.application.Application;
import javafx.event.EventHandler;
import javafx.event.EventType;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.TextArea;
import javafx.scene.control.TextField;
import javafx.scene.input.KeyCode;
import javafx.scene.input.KeyEvent;
import javafx.scene.input.MouseEvent;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

public class FXClient extends Application {
   Group root;
   Scene scene;
   TextArea outputTxt;
   TextField inputTxt;

   Socket socket;
   BufferedReader bReader;
   BufferedWriter bWriter;
   PrintWriter out = null;
   List list;

   public FXClient() {
      try {
         socket = new Socket("127.0.0.1", 4444);

         bReader = new BufferedReader(new InputStreamReader(
               socket.getInputStream()));
         bWriter = new BufferedWriter(new OutputStreamWriter(
               socket.getOutputStream()));
         out = new PrintWriter(socket.getOutputStream(), true);

         Thread th = new Thread();
         th.start();
      } catch (IOException e) {
         // TODO Auto-generated catch block
         e.printStackTrace();
      }

   }

   public void start(Stage stage) {
      root = new Group();
      scene = new Scene(root);
      stage.setScene(scene);
      stage.setResizable(false);

      VBox vbox = new VBox();

      outputTxt = new TextArea();
      outputTxt.setMinSize(400, 400);
      outputTxt.setDisable(false);
      outputTxt.setEditable(false);
      outputTxt.setFocusTraversable(false);

      inputTxt = new TextField();
      inputTxt.setFocusTraversable(true);
      inputTxt.setMinSize(400, 30);
      addTxtHandler();

      vbox.getChildren().add(outputTxt);
      vbox.getChildren().add(inputTxt);

      root.getChildren().add(vbox);

      stage.addEventHandler(MouseEvent.MOUSE_MOVED,
            new EventHandler<MouseEvent>() {

               @Override
               public void handle(MouseEvent arg0) {
                  System.out.println(arg0.toString());
                  try {

                     // while (bReader.readLine() != null) {
                     // outputTxt.setText(bReader.readLine());
                     // }
                  } catch (Exception e) {
                     e.printStackTrace();
                  }
               }
            });

      stage.show();
   }

   public void addTxtHandler() {
      inputTxt.addEventHandler(KeyEvent.KEY_PRESSED,
            new EventHandler<KeyEvent>() {

               @Override
               public void handle(KeyEvent e) {
                  if (e.getCode() == KeyCode.ENTER) {
                     out.print(inputTxt.getText());
                  }
               }
            });
   }

   public static void main(String[] args) {
      launch(args);
   }

}


server side code

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/*
 * To change this template, choose Tools | Templates and open the template in
 * the editor.
 */

package javaservertest;

/**
 *
 * @author jasmin
 */

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

class Server {

    public static void main(String args[]) {
        String data = "Toobie ornaught toobie";
        try {
            ServerSocket srvr = new ServerSocket(4444);

            Socket skt = srvr.accept();
            BufferedReader reader = new BufferedReader(new InputStreamReader(skt.getInputStream()));
            System.out.print("Server has connected!\n");
            PrintWriter out = new PrintWriter(skt.getOutputStream(), true);
            System.out.print("Sending string: '" + data + "'\n");
            out.print(data);
     
            System.out.println(reader.ready());
           
           while(reader.readLine() != null) { //HERE :S please help
                System.out.println(reader.readLine());
            }
           
            out.close();
            skt.close();
            srvr.close();
        } catch (Exception e) {
            e.printStackTrace();
            System.out.print("Whoops! It didn't work!\n");
        }
    }
}
Offline ra4king

JGO Kernel


Medals: 356
Projects: 3
Exp: 5 years


I'm the King!


« Reply #1 - Posted 2011-10-09 16:06:46 »

You seem to be creating an empty thread in the FXClient's constructor. I am not too familiar with JavaFX, could kindly explain the life cycle methods of Application?

Offline jasox

Senior Newbie





« Reply #2 - Posted 2011-10-10 13:56:55 »

You seem to be creating an empty thread in the FXClient's constructor. I am not too familiar with JavaFX, could kindly explain the life cycle methods of Application?

Oh sorry, I saw empty thread after I made this post. Anyways, I find where is error.
btw thx for reading code and trying to help Wink
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