Discussion :

[mimi51340]

Bonjour, j'ai une erreur lorsque je veux récupérer les infos sur mon serveur MySQL.

Voici mon erreur:

Code :

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Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
        at Test.Autorisation.TestJour(Autorisation.java:152)
        at Test.Autorisation.Connection(Autorisation.java:131)
        at Test.Autorisation.jButtonBadgeActionPerformed(Autorisation.java:95)
        at Test.Autorisation.access$100(Autorisation.java:7)
        at Test.Autorisation$2.actionPerformed(Autorisation.java:47)
        at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
        at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
        at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
        at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
        at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
        at java.awt.Component.processMouseEvent(Component.java:6041)
        at javax.swing.JComponent.processMouseEvent(JComponent.java:3265)
        at java.awt.Component.processEvent(Component.java:5806)
        at java.awt.Container.processEvent(Container.java:2058)
        at java.awt.Component.dispatchEventImpl(Component.java:4413)
        at java.awt.Container.dispatchEventImpl(Container.java:2116)
        at java.awt.Component.dispatchEvent(Component.java:4243)
        at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322)
        at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986)
        at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916)
        at java.awt.Container.dispatchEventImpl(Container.java:2102)
        at java.awt.Window.dispatchEventImpl(Window.java:2440)
        at java.awt.Component.dispatchEvent(Component.java:4243)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)

Et mon code est celui-ci:

Code :

Sélectionner tout - Visualiser dans une fenêtre à part

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package Test;
 
import java.sql.*;
import java.lang.*;
import java.util.*;
 
public class Autorisation extends javax.swing.JFrame {
 
    boolean bool1 = false;
    boolean bool2 = false;
    String heureAutorisee = null;
    String jourAutorise = null;
    String jourFr = null;
    String tab[] = {"Samedi", "Dimanche", "Lundi", "Mardi", "Mercredi", "Jeudi", "Vendredi"};
    String jourAuto[] = {"Lundi", "Mardi", "Mercredi", "Jeudi", "Vendredi"};
    String heureAuto[] = {"0814", "0821", "0812", "0817", "0817"};
 
 
    /** Creates new form Autorisation */
    public Autorisation() {
        initComponents();
    }
 
    /** 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.
     */
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {
 
        jTextFieldAutorisation = new javax.swing.JTextField();
        jButtonBadge = new javax.swing.JButton();
        jTextFieldNumBadge = new javax.swing.JTextField();
 
        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
 
        jTextFieldAutorisation.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jTextFieldAutorisationActionPerformed(evt);
            }
        });
 
        jButtonBadge.setText("Passage du badge");
        jButtonBadge.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButtonBadgeActionPerformed(evt);
            }
        });
 
        jTextFieldNumBadge.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jTextFieldNumBadgeActionPerformed(evt);
            }
        });
 
        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap(47, Short.MAX_VALUE)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                        .addComponent(jTextFieldNumBadge, javax.swing.GroupLayout.PREFERRED_SIZE, 309, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(44, 44, 44))
                    .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                        .addComponent(jTextFieldAutorisation, javax.swing.GroupLayout.PREFERRED_SIZE, 193, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(94, 94, 94))
                    .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                        .addComponent(jButtonBadge)
                        .addGap(130, 130, 130))))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                .addGap(55, 55, 55)
                .addComponent(jTextFieldNumBadge, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 78, Short.MAX_VALUE)
                .addComponent(jButtonBadge)
                .addGap(59, 59, 59)
                .addComponent(jTextFieldAutorisation, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(45, 45, 45))
        );
 
        pack();
    }// </editor-fold>                        
 
    private void jTextFieldAutorisationActionPerformed(java.awt.event.ActionEvent evt) {                                                       
        // TODO add your handling code here:
}                                                      
 
    private void jButtonBadgeActionPerformed(java.awt.event.ActionEvent evt) {                                             
        // TODO add your handling code here:
        Connection();
}                                            
 
    private void jTextFieldNumBadgeActionPerformed(java.awt.event.ActionEvent evt) {                                                   
        // TODO add your handling code here:
    }                                                  
 
   public void Connection() {
        Connection conn;
        Statement stmt;
        ResultSet rs;
        String pilote = "org.gjt.mm.mysql.Driver";
        String url = new String("jdbc:mysql://10.104.100.57:3306/snecma");
 
 
        try {
            Class.forName(pilote);
 
            conn = DriverManager.getConnection(url, "root", "root");
 
            stmt = conn.createStatement();
 
            rs = stmt.executeQuery("SELECT * From utilisateur");
 
            String NumCodeBarre;
            String NumBadge = "3";
 
 
            while (bool1 == false) {
                rs.next();
                System.out.println(rs.getString(1) + " " + rs.getString(2) + " " + rs.getString(3) + " " + rs.getString(4) + "\n ");
                NumCodeBarre = rs.getString(1);
                String Nom = rs.getString(2) + " " + rs.getString(3);
 
                if (NumBadge.equals(NumCodeBarre)) {
                    jTextFieldNumBadge.setText(Nom);
                    TestJour();
                } else {
                    AccesRefuseNonPresent();
                }
            }
 
            rs.close();
            stmt.close();
            conn.close();
 
        } catch (SQLException E) {
            System.out.println("SQLException: " + E.getMessage());
            System.out.println("SQLState:     " + E.getSQLState());
            System.out.println("VendorError:  " + E.getErrorCode());
        } catch (ClassNotFoundException E) {
            E.printStackTrace();
        }
    }
 
    public void TestJour(){
        for(int i = 0; i<jourAuto.length; i++) {
            if(jourFr.equals(jourAuto[i])){
                heureAutorisee = heureAuto[i];
                jourAutorise = jourAuto[i];
            }
        }
        if(jourAutorise == null){
            JourPasPresent();
        }
        else{
            HeuresAcces();
        }    
    }
 
     public void HeuresAcces() {
        bool1 = true;
        bool2 = true;
        int heure1 = Integer.parseInt(heureAutorisee.substring(00, 02)); //correspond à 08 soit 8h
        int heure2 = Integer.parseInt(heureAutorisee.substring(02, 04)); //correspond à 17 soit 17h
        GregorianCalendar cal = new GregorianCalendar();
        int heureSys = cal.get(Calendar.HOUR_OF_DAY);
        int jourSys = cal.get(Calendar.DAY_OF_WEEK);
        jourFr = JourFrancais(jourSys);
 
        if (heureSys < heure2 && heureSys >= heure1) {
            AccesAutorise();
        } else {
            AccesRefuse();
        }
    }
 
    public String JourFrancais(int JourAnglais){
        String JourFrancais = null;
        JourFrancais = tab[JourAnglais];
 
        return JourFrancais;
    }
 
    public void AccesAutorise() {
        jTextFieldAutorisation.setText("L'accès est autorisé");
    }
 
    public void AccesRefuse() {
        jTextFieldAutorisation.setText("L'accès est refusé");
    }
 
    public void AccesRefuseNonPresent() {
        jTextFieldNumBadge.setText("L'utilisateur n'est pas présent dans la Base de données");
        jTextFieldAutorisation.setText("L'accès est refusé");
    }
 
    public void JourPasPresent(){
        jTextFieldNumBadge.setText("L'utilisateur est présent dans la Base de données");
        jTextFieldAutorisation.setText("L'accès refusé car les horaires ne sont pas valides");
    }
 
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Autorisation().setVisible(true);
            }
        });
    }
 
    // Variables declaration - do not modify                     
    private javax.swing.JButton jButtonBadge;
    private javax.swing.JTextField jTextFieldAutorisation;
    private javax.swing.JTextField jTextFieldNumBadge;
    // End of variables declaration                   
 
}

Merci d'avance.

[guigui5931]

A quelle ligne correspond la ligne 152 et la 131?