Ecriture dans le fichier

**zikyoubi** · 09/12/2017, 23h06

Bonjour,

Je veut écrire dans un fichier le problème c'est que quand j’exécute mon code je clique sur le bouton send il le reconnait avec l'ActionListner mais rien ne s'écrit

Main.java

Code :

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/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package com.java.main;
 
import com.java.Interface.Communica;
import com.java.Interface.Communica2;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
 
/**
 *
 * @author Hp
 */
public class ComunicaSystem {
 
    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
 
 
        try {
 
            File a2b = new File("C:/Users/Hp/Desktop/SIGLIS M1/A2B.txt");
 
            File b2a = new File("C:/Users/Hp/Desktop/SIGLIS M1/B2A.txt");
 
 
            Communica comm = new Communica(new BufferedReader(new FileReader(b2a)),new BufferedWriter(new FileWriter(a2b)));
 
            //Communica2 comm2 = new Communica2(new BufferedReader(new FileReader(a2b)),new BufferedWriter(new FileWriter(b2a)));
 
        } catch (IOException ex) {
 
            ex.printStackTrace();
 
        }
    }
 
}

Communica.java

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/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package com.java.Interface;
 
 
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
 
 
/**
 *
 * @author Hamza Elyoubi
 * @Date : 15/11/2017
 * @Version 1.0
 */
public class Communica extends JFrame implements WindowListener{
 
    private BufferedWriter writer;
    private BufferedReader reader;
    private JButton bReceive;
    private JButton bSend;
    private JLabel lmessrec;
    private JLabel lmesssend;
    private JTextArea textRec;
    private JTextArea textTosend;
 
 
    public Communica(BufferedReader r,BufferedWriter w){
 
         this.reader = r;
        this.writer = w;
        initComponents();
 
    }
 
 
 
 
    private void initComponents(){
 
        this.setAlwaysOnTop(true);
 
        setTitle("Communication window");
 
        lmesssend = new JLabel("Message to send : ");
 
        lmessrec = new JLabel("Received message : ");
 
        textTosend = new JTextArea(7, 20);
 
        JScrollPane scrollPaneTosend = new JScrollPane(textTosend);
 
        textRec = new JTextArea(7, 20);
 
        textRec.setEditable(false);
 
        JScrollPane scrollPaneToreceive = new JScrollPane(textRec);
 
        bSend = new JButton("Send");
 
        bReceive = new JButton("Receive");
 
        setSize(500, 300);
 
        //Trois lignes sur deux colonnes avec GridLayout
        setLayout(new GridLayout(3, 2));
 
        //On ajoute chaque composant au contentPane
        getContentPane().add(lmesssend);
        getContentPane().add(scrollPaneTosend);
        getContentPane().add(bSend);
        getContentPane().add(bReceive);
        getContentPane().add(lmessrec);
        getContentPane().add(scrollPaneToreceive);
 
 
        bSend.addActionListener(new ActionListenerSend());
 
        bReceive.addActionListener(new ActionListenerReceive());
 
 
        // the JFrame is visible now
        setVisible(true);
 
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);     
 
    }
 
 
 
    public class ActionListenerSend implements ActionListener{
 
        public void actionPerformed(ActionEvent event){
 
        try {
 
 
            writer.write(textTosend.getText());
 
            System.out.println("ecriture faite");
 
        } catch (IOException ex) {
 
          	ex.printStackTrace();
 
        } 
      }
    }
 
    public class ActionListenerReceive implements ActionListener{
 
        public void actionPerformed(ActionEvent event){
 
        try {
 
        String text = "";
 
        String line = reader.readLine();
 
            while (line!=null) {
 
                text += line;
 
                line = reader.readLine();
 
            }
 
        textRec.setText(text);
 
        } catch (Exception e) {
 
            e.printStackTrace();
 
        }    
 
        }
    }
 
 
 
    @Override
    public void windowClosed(WindowEvent e) {
 
        try {
 
            if (writer != null){
 
                writer.close();
 
            }
            if (reader != null){
 
                reader.close();
 
            }
        } catch (IOException ex) {
            ex.printStackTrace();
        }
 
 
    }
 
 
    @Override
    public void windowOpened(WindowEvent e) {
        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    }
 
    @Override
    public void windowClosing(WindowEvent e) {
        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    }
 
    @Override
    public void windowIconified(WindowEvent e) {
        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    }
 
    @Override
    public void windowDeiconified(WindowEvent e) {
        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    }
 
    @Override
    public void windowActivated(WindowEvent e) {
        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    }
 
    @Override
    public void windowDeactivated(WindowEvent e) {
        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    }
 
}

**tchize_** · 10/12/2017, 00h17

Vu que tu bufferise, oublie pas de faire un flush après ton écriture.

Pour le reste, faudra que tu précise. On parle de quel actionlistener?
Rien ne s'écrit, mais où? Dans le fichier? à l'écran?
Des exceptions dans la console?

**zikyoubi** · 10/12/2017, 17h12

Bonjour,

Merci effectivement il manquait le flush pour que ça marche, j'ai une dernière chose, je veux aussi garder les anciens messages afficher dans le text-aeria de réception (en bas) que j'écris dans le text-aeria d'en haut et que je send , je veux en gros qu'ont chaque fois les messages s'accumule au fur et à mesure que j'écris et que j'efface mes messages..

je remet mon code mis a jour :

Code :

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/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package com.java.Interface;
 
 
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
 
 
/**
 *
 * @author Hamza Elyoubi
 * @Date : 15/11/2017
 * @Version 1.0
 */
public class Communica extends JFrame implements WindowListener{
 
    private BufferedWriter writer;
    private BufferedReader reader;
    private JButton bReceive;
    private JButton bSend;
    private JLabel lmessrec;
    private JLabel lmesssend;
    private JTextArea textRec;
    private JTextArea textTosend;
 
 
    public Communica(BufferedReader r,BufferedWriter w){
 
         this.reader = r;
        this.writer = w;
        initComponents();
 
    }
 
 
 
 
    private void initComponents(){
 
        this.setAlwaysOnTop(true);
 
        setTitle("Communication window");
 
        lmesssend = new JLabel("Message to send : ");
 
        lmessrec = new JLabel("Received message : ");
 
        textTosend = new JTextArea(7, 20);
 
        JScrollPane scrollPaneTosend = new JScrollPane(textTosend);
 
        textRec = new JTextArea(7, 20);
 
        textRec.setEditable(false);
 
        JScrollPane scrollPaneToreceive = new JScrollPane(textRec);
 
        bSend = new JButton("Send");
 
        bReceive = new JButton("Receive");
 
        setSize(500, 300);
 
        //Trois lignes sur deux colonnes avec GridLayout
        setLayout(new GridLayout(3, 2));
 
        //On ajoute chaque composant au contentPane
        getContentPane().add(lmesssend);
        getContentPane().add(scrollPaneTosend);
        getContentPane().add(bSend);
        getContentPane().add(bReceive);
        getContentPane().add(lmessrec);
        getContentPane().add(scrollPaneToreceive);
 
 
        bSend.addActionListener(new ActionListenerSend());
 
        bReceive.addActionListener(new ActionListenerReceive());
 
 
        // the JFrame is visible now
        setVisible(true);
 
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);     
 
    }
 
 
 
    public class ActionListenerSend implements ActionListener{
 
        public void actionPerformed(ActionEvent event){
 
        try {
 
 
            writer.write(textTosend.getText());
 
            writer.flush();
 
 
        } catch (IOException ex) {
 
          	ex.printStackTrace();
 
        } 
      }
    }
 
    public class ActionListenerReceive implements ActionListener{
 
        public void actionPerformed(ActionEvent event){
 
        try {
 
        String text = "";
 
        String line = reader.readLine();
 
            while (line!=null) {
 
                text += line;
 
                line = reader.readLine();
 
            }
 
        textRec.setText(text);
 
        } catch (Exception e) {
 
            e.printStackTrace();
 
        }    
 
        }
    }
 
 
 
    @Override
    public void windowClosed(WindowEvent e) {
 
        try {
 
            if (writer != null){
 
                writer.close();
 
            }
            if (reader != null){
 
                reader.close();
 
            }
        } catch (IOException ex) {
            ex.printStackTrace();
        }
 
 
    }
 
 
    @Override
    public void windowOpened(WindowEvent e) {
        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    }
 
    @Override
    public void windowClosing(WindowEvent e) {
        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    }
 
    @Override
    public void windowIconified(WindowEvent e) {
        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    }
 
    @Override
    public void windowDeiconified(WindowEvent e) {
        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    }
 
    @Override
    public void windowActivated(WindowEvent e) {
        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    }
 
    @Override
    public void windowDeactivated(WindowEvent e) {
        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    }
 
}

merci

**tchize_** · 10/12/2017, 20h01

Il suffit simplement que tu récupère l'ancien texte et que tu y ajoute le nouveau.

Ecriture dans le fichier

Entrée/Sortie Java

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