Discussion :

[Wyfrel]

Bonjour j'essaye de faire fonctionner ce petit bout de code :

Code :

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Session session= HibernateUtil.getSessionFactory().getCurrentSession();
		Transaction tx = session.beginTransaction();
		UserDTO user = new UserDTO();
		user.setUserName("greg");
		user.setPassword("greg2");
		session.save(user);
		tx.commit();

Mais j'ai une erreur du type :

Code :

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Initial SessionFactory creation failed.java.lang.ExceptionInInitializerError
java.lang.ExceptionInInitializerError
	at erasme.meg2.HibernateUtil.<clinit>(HibernateUtil.java:12)
	at erasme.meg2.UserDAOHibernateTest.testGetUser(UserDAOHibernateTest.java:19)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at junit.framework.TestCase.runTest(TestCase.java:154)
	at junit.framework.TestCase.runBare(TestCase.java:127)
	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 junit.swingui.TestRunner$16.run(TestRunner.java:623)
Caused by: org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: Invalid class loader hierarchy.  You have more than one version of 'org.apache.commons.logging.Log' visible, which is not allowed. (Caused by org.apache.commons.logging.LogConfigurationException: Invalid class loader hierarchy.  You have more than one version of 'org.apache.commons.logging.Log' visible, which is not allowed.) (Caused by org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: Invalid class loader hierarchy.  You have more than one version of 'org.apache.commons.logging.Log' visible, which is not allowed. (Caused by org.apache.commons.logging.LogConfigurationException: Invalid class loader hierarchy.  You have more than one version of 'org.apache.commons.logging.Log' visible, which is not allowed.))
	at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:543)
	at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:235)
	at org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:209)
	at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:351)
	at org.hibernate.cfg.Configuration.<clinit>(Configuration.java:120)
	... 15 more
Caused by: org.apache.commons.logging.LogConfigurationException: org.apache.commons.logging.LogConfigurationException: Invalid class loader hierarchy.  You have more than one version of 'org.apache.commons.logging.Log' visible, which is not allowed. (Caused by org.apache.commons.logging.LogConfigurationException: Invalid class loader hierarchy.  You have more than one version of 'org.apache.commons.logging.Log' visible, which is not allowed.)
	at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:397)
	at org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:529)
	... 19 more
Caused by: org.apache.commons.logging.LogConfigurationException: Invalid class loader hierarchy.  You have more than one version of 'org.apache.commons.logging.Log' visible, which is not allowed.
	at org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:385)
	... 20 more

Voila le code de HibernateUtil :

Code :

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package erasme.meg2;
 
import org.hibernate.*;
import org.hibernate.cfg.*;
 
public class HibernateUtil {
	private static final SessionFactory sessionFactory;
 
    static {
        try {
            // Create the SessionFactory from hibernate.cfg.xml
            sessionFactory = new Configuration().configure().buildSessionFactory();
        } catch (Throwable ex) {
            // Make sure you log the exception, as it might be swallowed
            System.err.println("Initial SessionFactory creation failed." + ex);
            ex.printStackTrace();
            throw new ExceptionInInitializerError(ex);
        }
    }
 
    public static SessionFactory getSessionFactory() {
        return sessionFactory;
    }
 
}

Voila l'arboresence des librairie que j'utilise :



Je comprends pas vraiment d'où viens l'erreur.

[phantomass]

Dans ton classpath, il y aurait au moins 2 jar commons-logging

[Wyfrel]

ben c'est ce que j'avais cru comprendre aussi ... mais je suis dans eclispe ... les jar affiché plus haut sont dans le buid path ....

et quand j'enlève la common login de la liste si dessus j'ai un class ot found exception :s

[OButterlin]

Je pense plutôt que ton problème est dans hibernate.cfg.xml, peux-tu nous le montrer ?

[Wyfrel]

Le voici :

Code :

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<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC 
    "-//Hibernate/Hibernate Configuration DTD//EN"
    "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
 
<hibernate-configuration>
    <session-factory>
 
        <!-- Settings for a local MySQL database. -->
        <property name="dialect">org.hibernate.dialect.MySQLDialect</property>
        <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="connection.url">jdbc:mysql://localhost:3306/meg</property>
        <property name="connection.username">root</property>
        <property name="connection.password"></property>
 
        <!-- Use the C3P0 connection pool. -->
        <property name="c3p0.min_size">3</property>
        <property name="c3p0.max_size">5</property>
        <property name="c3p0.timeout">1800</property>
 
        <!-- Disable second-level cache. -->
        <property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>
        <property name="cache.use_query_cache">false</property>
        <property name="cache.use_minimal_puts">false</property>
        <property name="max_fetch_depth">3</property>
 
        <!-- Print SQL to stdout. -->
        <property name="show_sql">true</property>
        <property name="format_sql">true</property>
 
        <!-- Bind the getCurrentSession() method to the thread. -->
        <property name="current_session_context_class">thread</property>
 
        <!-- Hibernate XML mapping files -->
        <mapping resource="erasme.meg.UserDTO.hbm.xml"/> 
 
    </session-factory>
 
</hibernate-configuration>

Merci

[OButterlin]

Je crois me souvenir d'un problème identique et je n'avais pas trouvé le moyen de lui dire "pas de mot de passe", du coup, j'en avais mis un...
Peux-tu essayer ça ?
(ou alors essaye en retirant la ligne password)