Hibernate 4.1.2 HHH000342: ne Peut pas obtenir la connexion de métadonnées de requête : Pas trouvé de driver jdbc:hsqldb:mem:test

Ce que je fais de mal?

Mon persistence.xml

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
    <persistence-unit name="Test" transaction-type="RESOURCE_LOCAL">
           <provider>org.hibernate.ejb.HibernatePersistence</provider>
           <class>User</class>
            <properties>
              <property name="hibernate.connection.driver_class" value="org.hsqldb.jdbcDriver"/>
              <property name="hibernate.connection.url" value="jdbc:hsqldb:mem:test"/>
              <property name="hibernate.connection.password" value="sa"/>
              <property name="hibernate.connection.username" value=""/>
              <property name="hibernate.hbm2ddl.auto" value="create"/>
              <property name="hibernate.dialect" value="org.hibernate.dialect.HSQLDialect"/>
              <property name="hibernate.show_sql" value="true"/>
              <property name="hibernate.format_sql" value="true"/>
            </properties>
          </persistence-unit>

Mon code

...
Persistence.createEntityManagerFactory("Test")
...

J'obtiens cette erreur

javax.persistence.PersistenceException: [PersistenceUnit: Test] Unable to build EntityManagerFactory
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:915)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:890)
at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:57)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:63)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:47)
at com.aol.biz.vendor.persistence.TestVpsUser.setUp(TestVpsUser.java:32)
at junit.framework.TestCase.runBare(TestCase.java:125)
at junit.framework.TestResult$1.protect(TestResult.java:106)
at junit.framework.TestResult.runProtected(TestResult.java:124)
at junit.framework.TestResult.run(TestResult.java:109)
at junit.framework.TestCase.run(TestCase.java:118)
at junit.framework.TestSuite.runTest(TestSuite.java:208)
at junit.framework.TestSuite.run(TestSuite.java:203)
at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:130)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: org.hibernate.HibernateException: Connection cannot be null when 'hibernate.dialect' not set
at org.hibernate.service.jdbc.dialect.internal.DialectFactoryImpl.determineDialect(DialectFactoryImpl.java:97)
at org.hibernate.service.jdbc.dialect.internal.DialectFactoryImpl.buildDialect(DialectFactoryImpl.java:67)
at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:170)
at org.hibernate.service.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:75)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:159)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:131)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:71)
at org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2274)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2270)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1739)
at org.hibernate.ejb.EntityManagerFactoryImpl.<init>(EntityManagerFactoryImpl.java:93)
at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:905)
... 18 more

MAIS!!

Si j'ai chargé la classe du pilote jdbc manuellement avant de créer usine fonctionne très bien. O_o

try {
Class.forName("org.hsqldb.jdbcDriver");
} catch (ClassNotFoundException e) {
//TODO Auto-generated catch block
e.printStackTrace();
}

Comment je peux le faire tous les travaux sans passer par cette étape? Plz Help!

OriginalL'auteur Akvel | 2012-04-05