Hibernate Junit problème

Version imprimable

Bonjour,

J'ai un souci avec Hibernate et Junit, si vous voulez je n'arrive pas à tester une méthode ça bloque ici :

Code:

Session session = getHibernateTemplate().getSessionFactory().getCurrentSession();

voilà mon code Junit

Code:

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public class UserDaoTests extends TestCase{
 
	UserDao userDao = null;
	@Override
	protected void setUp() throws Exception {
		userDao = new UserDaoImpl();
	}
 
    public void testGetAllUsers(){
    	userDao.getUsers();
    }
 
}

ça lance un exception de type NullPointerException

Mon fichier hibernate.cfg.xml est le suivant

Code:

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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
		"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
		"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
    <session-factory>
        <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="hibernate.connection.password">root</property>
        <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/experiments</property>
        <property name="hibernate.connection.username">root</property>
        <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
        <mapping class="appli.domain.User"/>
    </session-factory>
</hibernate-configuration>

Merci à votre aide

09/03/2009, 16h28
fr1man

Essaie de trouver ce qui est à null, ou montre nous la stacktrace complète.

ben ce qui est null c'est getHibernateTamplate()elle retourne null

voilà le code :

Code:

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public List<User> getUsers() {
		try {
			logger.info("getting all users in the database");
			HibernateTemplate hibertmlp = getHibernateTemplate();
			Session session = hibertmlp.getSessionFactory().getCurrentSession();
 
			Query qry = session.createQuery("from User");
 
			return qry.list();
 
		} catch (DataAccessException e) {
			// Critical errors : database unreachable, etc.
			logger.error("Exception - DataAccessException occurs : "+e.getMessage()+" when getting the liste of all user on complete getUsers().");
			return null;
		}
	}

le stackTrac :

Code:

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java.lang.NullPointerException
	at springapp.dao.UserDaoImpl.getUsers(UserDaoImpl.java:52)
	at springapp.dao.UserDaoTests.testGetAllUsers(UserDaoTests.java:14)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:616)
	at junit.framework.TestCase.runTest(TestCase.java:164)
	at junit.framework.TestCase.runBare(TestCase.java:130)
	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:120)
	at junit.framework.TestSuite.runTest(TestSuite.java:230)
	at junit.framework.TestSuite.run(TestSuite.java:225)
	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:460)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)

09/03/2009, 16h34
Patriarch24

Il ne manquerait pas des déclarations de beans spring là-dedans par hasard ?
09/03/2009, 16h36
fr1man

Patriarch a raison.
Ou alors, tu n'as simplement pas chargé ton context spring.
09/03/2009, 16h39
lionel84

Non je pense pas parce que on est pas encore arrivé à ce stade là, la déclaration des des paramètres de connexion à la base de données c'est dans le fichier hibernate.cfg.xml donc on as pas besoin de déclaraer une datasource pour ça le truc peut être dans le fichier de configuration d'Hibernate, il n'as pas été renseigné dans le code de test peut être qu'Hibernate n'arrive pas à le charger pour le moment je le mis dans /WEB-INF/classes

Merci
09/03/2009, 16h44
fr1man

getHibernateTemplate est une méthode du framework Spring.
Il y a donc un souci avec ta conf Spring.
09/03/2009, 16h45
Patriarch24

Citation:

donc on as pas besoin de déclaraer une datasource

Oui mais il y a besoin d'une sessionFactory pour HibernateTemplate. Tu devrais lire les logs de Spring qui te diront sans doute qu'un bean n'est pas correctement initialisé.

Alors comment je peux declarer l'existance de mon fichier hibernate.cfg.xml dans le fichier xml des beans de Spring par exemple

voilà un fichier de beans Spring pour le test :

Code:

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<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" 
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
        xsi:schemaLocation="http://www.springframework.org/schema/beans 
        http://www.springframework.org/schema/beans/spring-beans-2.5.xsd"> 
 
    <!-- the test application context definition for the jdbc based tests --> 
 
    <bean id="userDao" class="springapp.dao.UserDaoImpl">
        <property name="dataSource" ref="dataSource" />
    </bean>
 
    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
      <property name="driverClassName" value="${jdbc.driverClassName}"/>
      <property name="url" value="${jdbc.url}"/>
      <property name="username"  value="${jdbc.username}"/>
      <property name="password" value="${jdbc.password}"/>
    </bean>
    <bean id="propertyConfigurer" 
          class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
        <property name="locations">
            <list>
                <value>classpath:jdbc.properties</value>
            </list>
        </property>
    </bean>
 
    <bean id="transactionManager" 
          class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
    </bean>
 
</beans>

et voilà mon fichier hibernate.cg.xml

Code:

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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
		"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
		"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
    <session-factory>
        <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
        <property name="hibernate.connection.password">root</property>
        <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/experiments</property>
        <property name="hibernate.connection.username">root</property>
        <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
        <mapping class="springapp.domain.User"/>
    </session-factory>
</hibernate-configuration>

Merci

Code:

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<bean id="mySessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
    <property name="configLocation" value="classpath:/hibernate.cfg.xml"/>
  </bean>

Pour HibernateTemplate, il me semble qu'il te faut un bean sessionFactory un peu comme celui là:
Code:

1 2 3 4 5 6 <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> <property name="configLocation"> <value>classpath:hibernate.cfg.xml</value> </property> </bean>
EDIT: trop rapide ce Patriarch

Au fait j'ai fait ce que vous m'avez indiqué et j'ai eu la trace suivante :

Code:

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org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userDao' defined in class path resource [test-hibernate.xml]: Cannot resolve reference to bean 'sessionFactory' while setting bean property 'sessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [test-hibernate.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.springframework.orm.hibernate3.LocalSessionFactoryBean]: Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:275)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:104)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1245)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1010)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:472)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
	at java.security.AccessController.doPrivileged(Native Method)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:429)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:729)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:381)
	at org.springframework.test.AbstractSingleSpringContextTests.createApplicationContext(AbstractSingleSpringContextTests.java:213)
	at org.springframework.test.AbstractSingleSpringContextTests.loadContextLocations(AbstractSingleSpringContextTests.java:189)
	at org.springframework.test.AbstractSingleSpringContextTests.loadContext(AbstractSingleSpringContextTests.java:169)
	at org.springframework.test.AbstractSpringContextTests.getContext(AbstractSpringContextTests.java:140)
	at org.springframework.test.AbstractSingleSpringContextTests.setUp(AbstractSingleSpringContextTests.java:98)
	at junit.framework.TestCase.runBare(TestCase.java:128)
	at org.springframework.test.ConditionalTestCase.runBare(ConditionalTestCase.java:76)
	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:120)
	at junit.framework.TestSuite.runTest(TestSuite.java:230)
	at junit.framework.TestSuite.run(TestSuite.java:225)
	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:460)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [test-hibernate.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.springframework.orm.hibernate3.LocalSessionFactoryBean]: Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:883)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:839)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:440)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
	at java.security.AccessController.doPrivileged(Native Method)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:221)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
	at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:269)
	... 34 more
Caused by: org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.springframework.orm.hibernate3.LocalSessionFactoryBean]: Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory
	at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:115)
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:61)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:877)
	... 45 more
Caused by: java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory
	at org.hibernate.cfg.Configuration.<clinit>(Configuration.java:151)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:186)
	at org.springframework.orm.hibernate3.LocalSessionFactoryBean.class$(LocalSessionFactoryBean.java:174)
	at org.springframework.orm.hibernate3.LocalSessionFactoryBean.<init>(LocalSessionFactoryBean.java:174)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:532)
	at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:100)
	... 47 more
Caused by: java.lang.ClassNotFoundException: org.slf4j.LoggerFactory
	at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:323)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:268)
	at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:336)
	... 57 more

voilà le fichier de bean Spring :

Code:

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<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" 
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
        xsi:schemaLocation="http://www.springframework.org/schema/beans 
        http://www.springframework.org/schema/beans/spring-beans-2.5.xsd"> 
 
    <!-- the test application context definition for the jdbc based tests --> 
 
    <bean id="userDao" class="springapp.dao.UserDaoImpl">
        <property name="sessionFactory" ref="sessionFactory"/>
    </bean>
 
    <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
    <property name="configLocation">
		<value>classpath:hibernate.cfg.xml</value>
	</property>
</bean>
 
 
</beans>

Merci

09/03/2009, 17h50
fr1man

As-tu bien tous les jars ?
Il y a un NoClassDefFoundError sur slf4j.
10/03/2009, 10h35
lionel84

Oui j'ai tous les jar, mais dans la code Junit on ne charge pas le fichier des beans Spring dans la methode setUp()?

J'ai réussi à avancer un peu et là j'ai une autre exception liée à la gestion des transactions

le voilà cette exception :

Code:

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org.hibernate.HibernateException: No Hibernate Session bound to thread, and configuration does not allow creation of non-transactional one here
	at org.springframework.orm.hibernate3.SpringSessionContext.currentSession(SpringSessionContext.java:63)
	at org.hibernate.impl.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.java:574)
	at springapp.dao.UserDaoImpl.getUsers(UserDaoImpl.java:50)
	at springapp.dao.UserDaoTests.testGetAllUsers(UserDaoTests.java:20)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:616)
	at junit.framework.TestCase.runTest(TestCase.java:164)
	at junit.framework.TestCase.runBare(TestCase.java:130)
	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:120)
	at junit.framework.TestSuite.runTest(TestSuite.java:230)
	at junit.framework.TestSuite.run(TestSuite.java:225)
	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:460)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)

Merci pour votre aide

29/04/2009, 17h16
belrifou

salut,

Peux tu me dire comment tu as résolu ton problème avec ton erreur [CODEjava.lang.NoClassDefFoundError: org/slf4j/LoggerFactory][/CODE].
J'ai la même avec Junit et DBUnit :cry:

Il manque une librairie ? Si oui, laquelle ?

Merci de ta réponse.
05/05/2009, 10h14
lionel84

slt,

Oui il te manque une librairie il me semble que sont nom est du genre slf4j*.jar

si non quel version de spring tu as ? moi j'avais celle de 2.5.* avec les dépendance tu t'en trouve tout

Merci
13/05/2009, 10h34
belrifou

Merci, j'ai trouvö, il me manquait bien le jar slf4j