salut,
je travail sur un projet intégrant struts2, spring2.0 et hibernate3 au démarrage de l'application j'ai cet erreur :
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...
SEVERE: Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactoryBean' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is org.hibernate.MappingException: could not instantiate id generator
Caused by: org.hibernate.MappingException: could not instantiate id generator
	at org.hibernate.id.IdentifierGeneratorFactory.create(IdentifierGeneratorFactory.java:98)
	at org.hibernate.mapping.SimpleValue.createIdentifierGenerator(SimpleValue.java:152)
	at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:189)
	at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1213)
	at org.springframework.orm.hibernate3.LocalSessionFactoryBean.newSessionFactory(LocalSessionFactoryBean.java:798)
	at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:738)
	at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:131)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1057)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1024)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:421)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:245)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:140)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:242)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:156)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:270)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:346)
	at org.springframework.web.context.support.AbstractRefreshableWebApplicationContext.refresh(AbstractRefreshableWebApplicationContext.java:156)
	at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:246)
	at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:184)
	at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:49)
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3764)
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4216)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
	at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
	at org.apache.catalina.core.StandardService.start(StandardService.java:448)
	at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
Caused by: org.hibernate.MappingException: Dialect does not support sequences
	at org.hibernate.dialect.Dialect.getSequenceNextValString(Dialect.java:556)
	at org.hibernate.id.SequenceGenerator.configure(SequenceGenerator.java:65)
	at org.hibernate.id.IdentifierGeneratorFactory.create(IdentifierGeneratorFactory.java:94)
	... 34 more
Apr 14, 2009 7:20:18 PM org.apache.catalina.core.StandardContext listenerStart
SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
...
voici mon fichier hbm:
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<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
	"-//Hibernate/Hibernate Mapping DTD//EN"
	"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >
 
<hibernate-mapping package="quickstart.domaine.model">
	<class name="Person" table="Person">
		<meta attribute="sync-DAO">false</meta>
		<id name="id" type="integer" column="id">
			<generator class="increment" />
		</id>
 
		<property name="FirstName" column="firstName" type="string"
			not-null="true" length="45" />
		<property name="LastName" column="lastName" type="string"
			not-null="true" length="45" />
 
 
	</class>
</hibernate-mapping>
et mn applicationContext.xml:
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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-2.0.xsd">
	<bean id="dataSource"
		class="org.springframework.jdbc.datasource.DriverManagerDataSource"
		destroy-method="close">
		<property name="driverClassName">
			<value>com.mysql.jdbc.Driver</value>
		</property>
		<property name="url">
			<value>jdbc:mysql://192.168.0.201:3306/quickstart
			</value>
		</property>
		<property name="username">
			<value>root</value>
		</property>
		<property name="password">
			<value>123456</value>
		</property>
	</bean>
 
	<!-- Database Property -->
	<bean id="hibernateProperties"
		class="org.springframework.beans.factory.config.PropertiesFactoryBean">
		<property name="properties">
			<props>
				<prop key="hibernate.hbm2ddl.auto">update</prop>
				<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect
				</prop>
				<prop key="hibernate.query.substitutions">true 1, false 0</prop>
				<prop key="hibernate.show_sql">true</prop>
				<prop key="hibernate.format_sql">true</prop>
				<prop key="hibernate.c3p0.minPoolSize">5</prop>
				<prop key="hibernate.c3p0.maxPoolSize">20</prop>
				<prop key="hibernate.c3p0.timeout">600</prop>
				<prop key="hibernate.c3p0.max_statement">50</prop>
				<prop key="hibernate.c3p0.testConnectionOnCheckout">false</prop>
			</props>
		</property>
	</bean>
 
	<!-- Hibernate SessionFactory -->
	<bean id="sessionFactoryBean"
		class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
		<property name="dataSource">
			<ref bean="dataSource" />
		</property>
		<property name="hibernateProperties">
			<ref bean="hibernateProperties" />
		</property>
		<property name="mappingResources">
			<list>
				<value>quickstart/domaine/model/Person.hbm.xml
				</value>
			</list>
		</property>
	</bean>
 
	<!-- Hibernate Template -->
	<bean id="hibernateTemplate" class="org.springframework.orm.hibernate3.HibernateTemplate">
		<property name="sessionFactory">
			<ref bean="sessionFactoryBean" />
		</property>
	</bean>
 
	<bean id="transactionManager"
		class="org.springframework.orm.hibernate3.HibernateTransactionManager">
		<property name="sessionFactory" ref="sessionFactoryBean" />
	</bean>
 
	<!--
		************************************************************************
	-->
	<!--
		*************************** Beans Wiring
		******************************
	-->
	<!--
		************************************************************************
	-->
 
	<bean id="PersonDAO" class="quickstart.domaine.DAO.PersonDAO">
		<property name="hibernateTemplate">
			<ref bean="hibernateTemplate" />
		</property>
	</bean>
 
	<bean id="PersonService" class="quickstart.service.PersonService">
		<property name="personDAO">
			<ref bean="personDAO" />
		</property>
	</bean>
	<!--
		<bean id="PersonAction" scope="prototype"
		class="quickstart.action.PersonAction"> <constructor-arg
		ref="PersonService" /> </bean>
	-->
	<!-- actions -->
 
	<bean id="PersonAction" class="quickstart.action.PersonAction">
		<property name="PersonService">
			<ref bean="PersonService" />
		</property>
	</bean>
 
</beans>
sachant que ça marche ni avec : identity ou increment (dans le generator de mon fichier hbm), si quelqu'un a une idée ou une piste, marci d'avance.