Impossible d'afficher une image sélectionnée par un JFileChooser

**lewis2009** · 11/08/2016, 15h43

Bonjour tout le monde,

J'ai un probleme avec mon aplication : j'arrive à sélectionner une image avec JFileChooser mais l'image ne s'affiche pas .

/

Code :

Sélectionner tout - Visualiser dans une fenêtre à part

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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 Acceuil;
 
 
import connection.BDD;
import connection.Parametre;
import connection.ResultSetTableModel;
import java.io.File;
import java.sql.*;
import java.text.MessageFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JFileChooser;
import javax.swing.JOptionPane;
import javax.swing.JFrame;
import javax.swing.JTable;
import java.util.Date;
/**
 *
 * @author Mr LEYOUSSI BONACHI LAURIEL
 */
public class Menu_acceuil extends JFrame {
 
       // les declarations 
  ResultSet rs;
  BDD db;
   //les declarations de connections.   
    Connection connection;
    Statement statement;
    String SQL;
    /**
     * Creates new form Menu_acceuil
     */
    //afficher l'heur du jour et la date en présence.
    public void CurrentDate(){
     Thread clock = new Thread(){
    public void run(){
        for(;;){
            Calendar cal = new GregorianCalendar();
    int second = cal.get(Calendar.SECOND);
    int minute =cal.get(Calendar.MINUTE);
    int hour = cal.get(Calendar.HOUR);
    lbl2.setText("Il est environ:   "+hour+":"+(minute)+":"+second);
 
            try {
                sleep(1000);
            } catch (InterruptedException ex) {
                Logger.getLogger(Menu_acceuil.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
    }
    };
   clock.start(); 
     }
 
    public void jam(){
    Date s = new Date();
    SimpleDateFormat tgl = new SimpleDateFormat("EEEE-dd-MMM-yyyy");
lbl1.setText(tgl.format(s));
 
}
 
    public Menu_acceuil() {
      db = new BDD(new Parametre().HOST_DB, new Parametre().USERNAME_DB, new Parametre()
.PASSWORD_DB, new Parametre().IPHOST, new Parametre().PORT); 
        initComponents();
        table();
        actualiser();
        CurrentDate();
        jam();
    }
 
     public void table(){
      String a[] = {"Id", "Id_Enseignant", "Nom", "Prenom", "Cours","Date"};
      rs = db.querySelect(a, "enseignant");
      table_enseignant.setModel(new ResultSetTableModel(rs));
  }
     void actualiser(){
        txt_idE.setText("");
        txt_Nom.setText("");
        txt_Prenom.setText("");
        com_Cours.setSelectedItem("Courssss");
        date_fonction.setText("");
     }
 
    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {
 
        jLabel1 = new javax.swing.JLabel();
        jScrollPane1 = new javax.swing.JScrollPane();
        table_enseignant = new javax.swing.JTable();
        jLabel2 = new javax.swing.JLabel();
        jLabel3 = new javax.swing.JLabel();
        jLabel4 = new javax.swing.JLabel();
        jLabel5 = new javax.swing.JLabel();
        txt_idE = new javax.swing.JTextField();
        txt_Nom = new javax.swing.JTextField();
        txt_Prenom = new javax.swing.JTextField();
        com_Cours = new javax.swing.JComboBox<>();
        jPanel1 = new javax.swing.JPanel();
        jLabel6 = new javax.swing.JLabel();
        jButton1 = new javax.swing.JButton();
        jButton2 = new javax.swing.JButton();
        jButton3 = new javax.swing.JButton();
        Modifier = new javax.swing.JButton();
        jButton5 = new javax.swing.JButton();
        jButton6 = new javax.swing.JButton();
        nom_image = new javax.swing.JTextField();
        jLabel8 = new javax.swing.JLabel();
        bouton_image = new javax.swing.JButton();
        jDesktopPane1 = new javax.swing.JDesktopPane();
        jLabel_image = new javax.swing.JLabel();
        jLabel7 = new javax.swing.JLabel();
        date_fonction = new javax.swing.JTextField();
        jLabel9 = new javax.swing.JLabel();
        lbl1 = new javax.swing.JLabel();
        lbl2 = new javax.swing.JLabel();
        jMenuBar1 = new javax.swing.JMenuBar();
        jMenu1 = new javax.swing.JMenu();
        jMenu2 = new javax.swing.JMenu();
 
        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setMinimumSize(new java.awt.Dimension(1344, 742));
        getContentPane().setLayout(null);
 
        jLabel1.setIcon(new javax.swing.ImageIcon(getClass().getResource("/images/teacher.gif"))); // NOI18N
        getContentPane().add(jLabel1);
        jLabel1.setBounds(20, 10, 150, 150);
 
        table_enseignant.setFont(new java.awt.Font("Tahoma", 3, 18)); // NOI18N
        table_enseignant.setModel(new javax.swing.table.DefaultTableModel(
            new Object [][] {
                {null, null, null, null, null, null},
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                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null},
                {null, null, null, null, null, null}
            },
            new String [] {
                "Id", "Id_Enseignant", "Nom", "Prenom", "Cours", "Date"
            }
        ) {
            Class[] types = new Class [] {
                java.lang.Object.class, java.lang.String.class, java.lang.Object.class, java.lang.Object.class, java.lang.Object.class, java.lang.Object.class
            };
            boolean[] canEdit = new boolean [] {
                false, false, false, false, false, false
            };
 
            public Class getColumnClass(int columnIndex) {
                return types [columnIndex];
            }
 
            public boolean isCellEditable(int rowIndex, int columnIndex) {
                return canEdit [columnIndex];
            }
        });
        table_enseignant.addMouseListener(new java.awt.event.MouseAdapter() {
            public void mouseClicked(java.awt.event.MouseEvent evt) {
                table_enseignantMouseClicked(evt);
            }
        });
        jScrollPane1.setViewportView(table_enseignant);
 
        getContentPane().add(jScrollPane1);
        jScrollPane1.setBounds(80, 170, 834, 232);
 
        jLabel2.setFont(new java.awt.Font("Tahoma", 3, 18)); // NOI18N
        jLabel2.setText("ID Enseignant");
        getContentPane().add(jLabel2);
        jLabel2.setBounds(30, 410, 150, 30);
 
        jLabel3.setFont(new java.awt.Font("Tahoma", 3, 18)); // NOI18N
        jLabel3.setText("Nom");
        getContentPane().add(jLabel3);
        jLabel3.setBounds(30, 450, 150, 37);
 
        jLabel4.setFont(new java.awt.Font("Tahoma", 3, 18)); // NOI18N
        jLabel4.setText("Prénom");
        getContentPane().add(jLabel4);
        jLabel4.setBounds(30, 510, 150, 38);
 
        jLabel5.setFont(new java.awt.Font("Tahoma", 3, 18)); // NOI18N
        jLabel5.setText("Cours Tenu");
        getContentPane().add(jLabel5);
        jLabel5.setBounds(30, 570, 150, 38);
 
        txt_idE.setFont(new java.awt.Font("Tahoma", 3, 18)); // NOI18N
        txt_idE.setForeground(new java.awt.Color(255, 0, 0));
        txt_idE.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                txt_idEActionPerformed(evt);
            }
        });
        txt_idE.addKeyListener(new java.awt.event.KeyAdapter() {
            public void keyTyped(java.awt.event.KeyEvent evt) {
                txt_idEKeyTyped(evt);
            }
        });
        getContentPane().add(txt_idE);
        txt_idE.setBounds(230, 410, 200, 40);
 
        txt_Nom.setFont(new java.awt.Font("Tahoma", 3, 18)); // NOI18N
        getContentPane().add(txt_Nom);
        txt_Nom.setBounds(230, 460, 200, 37);
 
        txt_Prenom.setFont(new java.awt.Font("Tahoma", 3, 18)); // NOI18N
        getContentPane().add(txt_Prenom);
        txt_Prenom.setBounds(230, 510, 200, 40);
 
        com_Cours.setBackground(new java.awt.Color(204, 204, 204));
        com_Cours.setFont(new java.awt.Font("Tahoma", 3, 18)); // NOI18N
        com_Cours.setForeground(new java.awt.Color(51, 102, 255));
        com_Cours.setModel(new javax.swing.DefaultComboBoxModel<>(new String[] { "Français", "Hist-Geo", "Mathématique", "Science Phy", "Science Nat", "Latin", "Allemand", "EPS", "Dessin", "Ecriture", "Anglais", "Philosophie", "Maitre primaire", "Maitresse Primaire", "Maitre Presc", "Maitresse Presc", " " }));
        getContentPane().add(com_Cours);
        com_Cours.setBounds(230, 570, 200, 38);
 
        jPanel1.setBorder(javax.swing.BorderFactory.createMatteBorder(3, 0, 3, 0, new java.awt.Color(51, 102, 255)));
        jPanel1.setLayout(null);
 
        jLabel6.setBackground(new java.awt.Color(255, 255, 255));
        jLabel6.setFont(new java.awt.Font("Tahoma", 3, 36)); // NOI18N
        jLabel6.setForeground(new java.awt.Color(0, 102, 255));
        jLabel6.setText("§ESPACE ENREGISTREMENT ENSEIGANTS §");
        jLabel6.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED, new java.awt.Color(153, 153, 255), new java.awt.Color(51, 51, 255), new java.awt.Color(153, 153, 255), new java.awt.Color(51, 51, 255)));
        jPanel1.add(jLabel6);
        jLabel6.setBounds(20, 10, 820, 70);
 
        getContentPane().add(jPanel1);
        jPanel1.setBounds(200, 60, 870, 100);
 
        jButton1.setBackground(new java.awt.Color(255, 255, 255));
        jButton1.setFont(new java.awt.Font("Tahoma", 3, 18)); // NOI18N
        jButton1.setForeground(new java.awt.Color(51, 102, 255));
        jButton1.setIcon(new javax.swing.ImageIcon(getClass().getResource("/images/modifyCompte.png"))); // NOI18N
        jButton1.setText("Ajouter");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });
        getContentPane().add(jButton1);
        jButton1.setBounds(450, 410, 180, 60);
 
        jButton2.setBackground(new java.awt.Color(255, 255, 255));
        jButton2.setFont(new java.awt.Font("Tahoma", 3, 18)); // NOI18N
        jButton2.setForeground(new java.awt.Color(51, 102, 255));
        jButton2.setIcon(new javax.swing.ImageIcon(getClass().getResource("/images/delete-Eleve.png"))); // NOI18N
        jButton2.setText("Supprimer");
        jButton2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton2ActionPerformed(evt);
            }
        });
        getContentPane().add(jButton2);
        jButton2.setBounds(650, 480, 180, 60);
 
        jButton3.setBackground(new java.awt.Color(255, 255, 255));
        jButton3.setFont(new java.awt.Font("Tahoma", 3, 18)); // NOI18N
        jButton3.setForeground(new java.awt.Color(51, 102, 255));
        jButton3.setIcon(new javax.swing.ImageIcon(getClass().getResource("/images/actualiser .png"))); // NOI18N
        jButton3.setText("Actualiser");
        jButton3.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton3ActionPerformed(evt);
            }
        });
        getContentPane().add(jButton3);
        jButton3.setBounds(450, 480, 180, 60);
 
        Modifier.setBackground(new java.awt.Color(255, 255, 255));
        Modifier.setFont(new java.awt.Font("Tahoma", 3, 18)); // NOI18N
        Modifier.setForeground(new java.awt.Color(51, 102, 255));
        Modifier.setText("Modifier");
        Modifier.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                ModifierActionPerformed(evt);
            }
        });
        getContentPane().add(Modifier);
        Modifier.setBounds(650, 410, 180, 60);
 
        jButton5.setBackground(new java.awt.Color(255, 255, 255));
        jButton5.setFont(new java.awt.Font("Tahoma", 3, 18)); // NOI18N
        jButton5.setForeground(new java.awt.Color(0, 102, 255));
        jButton5.setIcon(new javax.swing.ImageIcon(getClass().getResource("/images/user.png"))); // NOI18N
        jButton5.setText("Quitter");
        jButton5.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton5ActionPerformed(evt);
            }
        });
        getContentPane().add(jButton5);
        jButton5.setBounds(650, 550, 180, 60);
 
        jButton6.setFont(new java.awt.Font("Tahoma", 3, 18)); // NOI18N
        jButton6.setForeground(new java.awt.Color(51, 153, 0));
        jButton6.setIcon(new javax.swing.ImageIcon(getClass().getResource("/images/download-excel.png"))); // NOI18N
        jButton6.setText("Imprimer");
        jButton6.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton6ActionPerformed(evt);
            }
        });
        getContentPane().add(jButton6);
        jButton6.setBounds(450, 550, 180, 60);
        getContentPane().add(nom_image);
        nom_image.setBounds(920, 460, 270, 30);
 
        jLabel8.setFont(new java.awt.Font("Tahoma", 3, 11)); // NOI18N
        jLabel8.setForeground(new java.awt.Color(204, 0, 0));
        jLabel8.setText("AJOUTER UNE PHOTO (Optionnel)");
        getContentPane().add(jLabel8);
        jLabel8.setBounds(960, 210, 200, 20);
 
        bouton_image.setFont(new java.awt.Font("Tahoma", 3, 18)); // NOI18N
        bouton_image.setIcon(new javax.swing.ImageIcon(getClass().getResource("/images/gallery.png"))); // NOI18N
        bouton_image.setText("Choix de l'image");
        bouton_image.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                bouton_imageActionPerformed(evt);
            }
        });
        getContentPane().add(bouton_image);
        bouton_image.setBounds(920, 500, 270, 50);
 
        jDesktopPane1.add(jLabel_image);
        jLabel_image.setBounds(10, 10, 170, 190);
 
        getContentPane().add(jDesktopPane1);
        jDesktopPane1.setBounds(960, 240, 190, 210);
 
        jLabel7.setFont(new java.awt.Font("Tahoma", 3, 18)); // NOI18N
        jLabel7.setText("Début de fonction");
        getContentPane().add(jLabel7);
        jLabel7.setBounds(30, 620, 170, 30);
 
        date_fonction.setFont(new java.awt.Font("Tahoma", 3, 18)); // NOI18N
        date_fonction.setForeground(new java.awt.Color(51, 153, 0));
        getContentPane().add(date_fonction);
        date_fonction.setBounds(230, 620, 200, 30);
 
        jLabel9.setText("Format Année-MM-JJ");
        getContentPane().add(jLabel9);
        jLabel9.setBounds(450, 630, 180, 20);
 
        lbl1.setFont(new java.awt.Font("Tahoma", 3, 14)); // NOI18N
        lbl1.setForeground(new java.awt.Color(204, 0, 0));
        getContentPane().add(lbl1);
        lbl1.setBounds(580, 30, 250, 20);
 
        lbl2.setFont(new java.awt.Font("Tahoma", 3, 14)); // NOI18N
        lbl2.setForeground(new java.awt.Color(204, 0, 0));
        getContentPane().add(lbl2);
        lbl2.setBounds(850, 30, 220, 20);
 
        jMenu1.setText("Option");
        jMenuBar1.add(jMenu1);
 
        jMenu2.setText("Aide");
        jMenuBar1.add(jMenu2);
 
        setJMenuBar(jMenuBar1);
 
        pack();
    }// </editor-fold>                        
 
    private void table_enseignantMouseClicked(java.awt.event.MouseEvent evt) {                                              
 
        txt_idE.setText(String.valueOf(table_enseignant.getValueAt(table_enseignant.getSelectedRow(), 1)));
        txt_Nom.setText(String.valueOf(table_enseignant.getValueAt(table_enseignant.getSelectedRow(), 2)));
        txt_Prenom.setText(String.valueOf(table_enseignant.getValueAt(table_enseignant.getSelectedRow(), 3)));
        com_Cours.setSelectedItem(String.valueOf(table_enseignant.getValueAt(table_enseignant.getSelectedRow(), 4)));
         date_fonction.setText(String.valueOf(table_enseignant.getValueAt(table_enseignant.getSelectedRow(), 5)));
    }                                             
 
    private void txt_idEKeyTyped(java.awt.event.KeyEvent evt) {                                 
       if(evt.getKeyChar()==10){  
       try {  
          String Id_Enseignant = txt_idE.getText();
      Statement statement= connection.createStatement(1004,1008);
      ResultSet rs=statement.executeQuery("select Id_Enseignant from enseignant where Id_Enseignant='"+txt_idE+"'");
            if (rs.first()) { 
          JOptionPane.showMessageDialog(this, "impossible car le numero Matricule "
                  + rs.getString(1)+" existe déja");
          txt_idE.setText("");
      } 
            connection.close();
       }catch (Exception e){ 
            JOptionPane.showMessageDialog(this, e.getMessage()); 
 
         }    }   
    }                                
 
    private void jButton5ActionPerformed(java.awt.event.ActionEvent evt) {                                         
        login a = new login();
        a.setVisible(true);
        this.dispose();
    }                                        
 
    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                         
       if (txt_idE.getText().equals("")|| txt_Nom.getText().equals("")|| txt_Prenom.getText().equals("")
            || com_Cours.getSelectedItem().equals("Courssss")|| date_fonction.getText().equals("")){
  JOptionPane.showMessageDialog(this, "Les informations sont insuffisants SVP !");
        } else {
            String[] colon = {"id_Enseignant", "Nom", "Prenom", "Cours","Date"};
String[] inf = {txt_idE.getText(), txt_Nom.getText(), txt_Prenom.getText(), com_Cours.getSelectedItem().toString(),date_fonction.getText()};
             System.out.println(db.queryInsert("enseignant", colon, inf));
             table();
    } 
    }                                        
 
    private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {                                         
       if (txt_idE.getText().equals("")|| txt_Nom.getText().equals("")|| txt_Prenom.getText().equals("")
                || com_Cours.getSelectedItem().equals("Cours")|| date_fonction.getText().equals("")){
 JOptionPane.showMessageDialog(this, "Etes vous sur de bien vouloir supprimer?");
        } else {
            String[] colon = {"Id_Enseignant", "Nom", "Prenom", "Cours","Date"};
String[] inf = {txt_idE.getText(), txt_Nom.getText(), txt_Prenom.getText(), com_Cours.getSelectedItem().toString(),date_fonction.getText()};
            String Id = String.valueOf(table_enseignant.getValueAt(table_enseignant.getSelectedRow(), 0));
             System.out.println(db.queryUpdate("enseignant", colon, inf, "Id='" + Id + "'"));
             table();
             actualiser();
        }
    }                                        
 
    private void jButton6ActionPerformed(java.awt.event.ActionEvent evt) {                                         
 
        MessageFormat header = new MessageFormat("Report print");
        MessageFormat footer = new MessageFormat("Page  {0, number,integer} ");
        try {
            table_enseignant.print(JTable.PrintMode.NORMAL,header ,footer);
        }catch (java.awt.print.PrinterException e){
            System.err.format("impossible d'imprimer cet espace n'a aucun élément",e.getMessage());}
 
    }                                        
 
    private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {                                         
        actualiser(); table();
    }                                        
 
    private void bouton_imageActionPerformed(java.awt.event.ActionEvent evt) {                                             
       JFileChooser chooser =new JFileChooser();
       chooser.showOpenDialog(null);
       File f= chooser.getSelectedFile();
       String filename=f.getAbsolutePath();
       nom_image.setText(filename);
    }                                            
 
    private void ModifierActionPerformed(java.awt.event.ActionEvent evt) {                                         
       if (txt_idE.getText().equals("")|| txt_Nom.getText().equals("")|| txt_Prenom.getText().equals("")
                || com_Cours.getSelectedItem().equals("Cours")|| date_fonction.getText().equals("")){
 JOptionPane.showMessageDialog(this, "SVP veuillez entrez les informations complete");
        } else {
            String[] colon = {"Id_Enseignant", "Nom", "Prenom", "Cours","Date"};
String[] inf = {txt_idE.getText(), txt_Nom.getText(), txt_Prenom.getText(),com_Cours.getSelectedItem().toString(), date_fonction.getText()};
            String Id = String.valueOf(table_enseignant.getValueAt(table_enseignant.getSelectedRow(), 0));
             System.out.println(db.queryUpdate("enseignant", colon, inf, "Id='" + Id + "'"));
             table();
             actualiser();  }
    }                                        
 
    private void txt_idEActionPerformed(java.awt.event.ActionEvent evt) {                                        
 
    }                                       
 
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see <a href="http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html" target="_blank">http://download.oracle.com/javase/tu...feel/plaf.html</a> 
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(Menu_acceuil.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(Menu_acceuil.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(Menu_acceuil.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(Menu_acceuil.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>
 
        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Menu_acceuil().setVisible(true);
            }
        });
    }
 
    // Variables declaration - do not modify                     
    private javax.swing.JButton Modifier;
    private javax.swing.JButton bouton_image;
    private javax.swing.JComboBox<String> com_Cours;
    private javax.swing.JTextField date_fonction;
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JButton jButton3;
    private javax.swing.JButton jButton5;
    private javax.swing.JButton jButton6;
    private javax.swing.JDesktopPane jDesktopPane1;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JLabel jLabel4;
    private javax.swing.JLabel jLabel5;
    private javax.swing.JLabel jLabel6;
    private javax.swing.JLabel jLabel7;
    private javax.swing.JLabel jLabel8;
    private javax.swing.JLabel jLabel9;
    private javax.swing.JLabel jLabel_image;
    private javax.swing.JMenu jMenu1;
    private javax.swing.JMenu jMenu2;
    private javax.swing.JMenuBar jMenuBar1;
    private javax.swing.JPanel jPanel1;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JLabel lbl1;
    private javax.swing.JLabel lbl2;
    private javax.swing.JTextField nom_image;
    private javax.swing.JTable table_enseignant;
    private javax.swing.JTextField txt_Nom;
    private javax.swing.JTextField txt_Prenom;
    private javax.swing.JTextField txt_idE;
    // End of variables declaration                   
 
}

**joel.drigo** · 11/08/2016, 16h31

Salut,

La méthode qui nous intéresse est celle-ci :

Code :

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   private void bouton_imageActionPerformed(java.awt.event.ActionEvent evt) {                                             
      JFileChooser chooser =new JFileChooser();
      chooser.showOpenDialog(null);
      File f= chooser.getSelectedFile();
      String filename=f.getAbsolutePath();
      nom_image.setText(filename);
   }

Alors,

Il faut bien entendu charger le fichier image en mémoire pour pouvoir afficher l'image

Tu peux faire ça simplement par :

Code :

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 try {
    	  BufferedImage image = ImageIO.read( f );
 
    	  // ici on peut afficher l'image
 
      }
      catch(IOException e) {
    	     JOptionPane.showMessageDialog(null, "L'image ne peut pas être chargée : ce n'est pas un fichier image ou il est corrompu", "Erreur", JOptionPane.ERROR_MESSAGE);
      }

Ensuite il faut l'afficher, et, là, çà dépend de comment tu veux l'afficher
1. on peut l'afficher dans un composant de l'interface prévu à cet effet, comme nom_image qui est prévu pour le nom de l'image. D'ailleurs, on pourrait même l'afficher dans le composant qui affiche le nom, éventuellement.
  Il y a pour ce mode, 2 cas possibles :
  1. l'image doit s'afficher dans sa taille d'origine, ou une taille fixe proportionnelle à sa taille d'origine
  2. l'image doit s'afficher dans un composant en prenant le maximum de taille qu'on lui donne, et s'adapter à la fenêtre dans laquelle il se trouve : ne jamais dépasser, mais s'afficher le plus grand possible dans cet espace qu'on lui donne
2. On peut l'afficher dans un dialogue qui s'ouvre à ce moment-là, ou dans une fenêtre à part (une popup), voire même dans un tooltip qui ne s'afficherait par exemple que lorsqu'on passe la souris sur le nom de l'image
3. on peut aussi l'afficher dans la JTable si nécessaire
4. ou n'importe où tu veux, mais il faut que tu nous le précise

Remarque annexe, au sujet de ton :

Code :

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table_enseignant.setModel(new javax.swing.table.DefaultTableModel(
           new Object [][] {
               {null, null, null, null, null, null},
               {null, null, null, null, null, null},
               {null, null, null, null, null, null},
               {null, null, null, null, null, null},
               {null, null, null, null, null, null},
 
 
               /*...*/
 
                {null, null, null, null, null, null},
            {null, null, null, null, null, null},
            {null, null, null, null, null, null},
            {null, null, null, null, null, null},
            {null, null, null, null, null, null},
            {null, null, null, null, null, null}
    },   
           new String [] {
               "Id", "Id_Enseignant", "Nom", "Prenom", "Cours", "Date"
           }
}

Je suis admiratif sur l'effort produit pour procéder à 299 "coller", mais tu aurais pu faire simplement :

Code :

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table_enseignant.setModel(new javax.swing.table.DefaultTableModel(
           new Object [300][6]
    ,
           new String [] {
               "Id", "Id_Enseignant", "Nom", "Prenom", "Cours", "Date"
           }
}

ça aurait produit le même résultat, plus facilement, de manière plus lisible, et si tu as besoin de changer le nombre de ligne, c'est plus facile de changer le 300 plutôt que de compter les lignes à supprimer, et de refaire des copier/coller... Par ailleurs, il n'est normalement pas indispensable de remplir le tableau de ligne vide : on peut ajouter ou supprimer des lignes dans une JTable, et c'est bien plus simple à gérer.

Impossible d'afficher une image sélectionnée par un JFileChooser

AWT/Swing Java

Vue hybride

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