Bonjour, j'essaye de faire une appli web en utilisant JSF+Spring+Hibernate.
Pour l'instant je met en place ce tuto et j'ai cette erreur.

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org.springframework.beans.factory.BeanCreationException:
Error creating bean with name 'userDao' defined in ServletContext resource [/WEB-INF/applicationContextDao.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 ServletContext resource [/WEB-INF/applicationContextDao.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
Mon applicationContextDao.xml ressemble à ça:

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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
 
<beans>
	<!-- General  -->
	<bean id="userDao" class="model.dao.hibernate3.UserDaoImpl">
		<property name="sessionFactory">
			<ref bean="sessionFactory" />
		</property>
	</bean>
 
	<!-- sessionFactory  -->
	<bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
		<property name="configLocation">
			<value>classpath:hibernate.cfg.xml</value>
		</property>
		<property  name="configurationClass">
  			 <value>org.hibernate.cfg.AnnotationConfiguration</value>
		</property>
	</bean>
 
	<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
		<property name="sessionFactory" ref="sessionFactory"/>
	</bean>
	<bean id="transactionProxy" abstract="true"
		class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
		<property name="transactionManager">
			<ref bean="transactionManager"/>
		</property>
		<property name="transactionAttributes">
			<props>
				<prop key="insert*">PROPAGATION_REQUIRED</prop>
				<prop key="update*">PROPAGATION_REQUIRED</prop>
				<prop key="save*">PROPAGATION_REQUIRED</prop>
				<prop key="*">PROPAGATION_REQUIRED, readOnly</prop>
			</props>
		</property>
	</bean>	
</beans>
Avez-vous une idée?

Merci