Discussion :

[akira1994]

Bonjour,

Ça c'est l'erreur qui signale

com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WHERE username'ASSASD' and password='sdddd'' at line 1
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at base_de_donne�.Login.jButton2ActionPerformed(Login.java:112)
at base_de_donne�.Login.access$100(Login.java:16)
at base_de_donne�.Login$2.actionPerformed(Login.java:85)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent(Component.java:6533)
at javax.swing.JComponent.processMouseEvent(JComponent.javles s3324)
at java.awt.Component.processEvent(Component.java:6298)
at java.awt.Container.processEvent(Container.java:2236)
at java.awt.Component.dispatchEventImpl(Component.java:4889)
at java.awt.Container.dispatchEventImpl(Container.java:2294)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4525)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466)
at java.awt.Container.dispatchEventImpl(Container.java:2280)
at java.awt.Window.dispatchEventImpl(Window.java:2746)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
at java.awt.EventQueue$4.run(EventQueue.java:731)
at java.awt.EventQueue$4.run(EventQueue.java:729)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

Bon voila le code ou sa beug

Code :

Sélectionner tout - Visualiser dans une fenêtre à part

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
package base_de_donne�;
 
import Application.BDD;
import Application.Parameter;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JOptionPane;
public class Login extends javax.swing.JFrame {
//d閏laration   
 
ResultSet rs;
    BDD db;
    String username1, password1, hak;
 
 
 
    public Login() {
db = new BDD(new Parameter().HOST_DB, new Parameter().USERNAME_DB,new Parameter()
         .PASSWORD_DB, new Parameter().IPHOST, new Parameter().PORT);              
 
        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.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {
 
        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        jLabel3 = new javax.swing.JLabel();
        txt_password = new javax.swing.JTextField();
        txt_username = new javax.swing.JTextField();
        jButton1 = new javax.swing.JButton();
        jButton2 = new javax.swing.JButton();
 
        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        getContentPane().setLayout(null);
 
        jLabel1.setFont(new java.awt.Font("Times New Roman", 3, 48)); // NOI18N
        jLabel1.setForeground(new java.awt.Color(51, 204, 255));
        jLabel1.setText("Login");
        getContentPane().add(jLabel1);
        jLabel1.setBounds(151, 26, 163, 67);
 
        jLabel2.setFont(new java.awt.Font("Tahoma", 0, 18)); // NOI18N
        jLabel2.setText("username :");
        getContentPane().add(jLabel2);
        jLabel2.setBounds(39, 125, 88, 22);
 
        jLabel3.setFont(new java.awt.Font("Tahoma", 0, 18)); // NOI18N
        jLabel3.setText("password :");
        getContentPane().add(jLabel3);
        jLabel3.setBounds(40, 210, 86, 22);
 
        txt_password.setFont(new java.awt.Font("Tahoma", 0, 14)); // NOI18N
        getContentPane().add(txt_password);
        txt_password.setBounds(173, 210, 130, 30);
 
        txt_username.setFont(new java.awt.Font("Tahoma", 0, 14)); // NOI18N
        getContentPane().add(txt_username);
        txt_username.setBounds(173, 125, 130, 30);
 
        jButton1.setFont(new java.awt.Font("Times New Roman", 0, 18)); // NOI18N
        jButton1.setText("fermer");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });
        getContentPane().add(jButton1);
        jButton1.setBounds(190, 280, 90, 40);
 
        jButton2.setFont(new java.awt.Font("Times New Roman", 0, 18)); // NOI18N
        jButton2.setText("Login");
        jButton2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton2ActionPerformed(evt);
            }
        });
        getContentPane().add(jButton2);
        jButton2.setBounds(40, 280, 90, 40);
 
        pack();
    }// </editor-fold>                        
 
    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                         
dispose();
    }                                        
 
    private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {                                         
 
rs = db.querySelectAll("utilisateur", "username='" + txt_username.getText()
        +"' and password='" + txt_password.getText() + "'");
        try{
           while(rs.next()){
               username1 = rs.getString("username");
               password1 = rs.getString("password");
               hak = rs.getString("type");
           }
        }catch(SQLException ex){
           Logger.getLogger(Login.class.getName()).log(Level.SEVERE, null, ex);
        }
 
        if(username1 == null && password1 == null){ 
           JOptionPane.showMessageDialog(this, "le nom utilisateur ou le mot de pass est incorrect");
        }else{
           if (hak.equals("directeur")){
               Principale h = new Principale();
               h.setVisible(true);
               this.dispose();
           }else{
              Cachier k = new Cachier();
              k.setVisible(true);
              this.dispose();
           }
        }
 
    }                                        
 
    /**
     * @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(Login.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(Login.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(Login.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(Login.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 Login().setVisible(true);
            }
        });
    }
 
    // Variables declaration - do not modify                     
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel jLabel2;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JTextField txt_password;
    private javax.swing.JTextField txt_username;
    // End of variables declaration                   
}

Desole je sais pas encore comment utiliser les balises

[Népomucène]

Si tu regardes attentivement le début du message d'erreur, tu as :

near 'WHERE username'ASSASD' and password='sdddd'' at line 1

Ce qui ne peut pas marcher en sql ; il manque le signe = après username.
Il faut écrire ta requête comme cela :

Code :

Sélectionner tout - Visualiser dans une fenêtre à part

WHERE username='ASSASD' and password='sdddd'