Bonjour,
J'essaie d'accéder à une base de données MySQL (MySQL installé avec le package MAMP sous macosx) à partir d'une appli Java. J'ai télécharger le driver Connector/J, l'ai inclu dans mon classpath et appelle la fonction suivante depuis mon appli:
Class.forName(com.mysql.jdbc.Driver);
Seulement, quand j'essaie de me connecter:
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DriverManager.getConnection(jdbc:mysql:///db_ftp_appli, root@localhost, root); |
Il me génère l'erreur suivante:
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SQLException: No suitable driver
apple.awt.EventQueueExceptionHandler Caught Throwable : java.lang.NullPointerException
java.lang.NullPointerException
at DBConnection.executeQuery(DBConnection.java:57)
at Login.authentification(Login.java:110)
at Login.actionPerformed(Login.java:98)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1819)
at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(AbstractButton.java:1872)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:247)
at java.awt.Component.processMouseEvent(Component.java:5166)
at java.awt.Component.processEvent(Component.java:4963)
at java.awt.Container.processEvent(Container.java:1613)
at java.awt.Component.dispatchEventImpl(Component.java:3681)
at java.awt.Container.dispatchEventImpl(Container.java:1671)
at java.awt.Component.dispatchEvent(Component.java:3543)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3527)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3242)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3172)
at java.awt.Container.dispatchEventImpl(Container.java:1657)
at java.awt.Window.dispatchEventImpl(Window.java:1606)
at java.awt.Component.dispatchEvent(Component.java:3543)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:456)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:234)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:178)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:170)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:100) |
Merci d'avance pour vos suggestion !!
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