java.lang.NoSuchMethodError: org.hibernate.Session

最近整合spring4和hibernate4,beans.xml如下

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:aop="http://www.springframework.org/schema/aop" 
    xmlns:tx="http://www.springframework.org/schema/tx" 
    xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context.xsd
        http://www.springframework.org/schema/aop   
   		http://www.springframework.org/schema/aop/spring-aop.xsd
   		http://www.springframework.org/schema/tx   
    	http://www.springframework.org/schema/tx/spring-tx.xsd ">
        
    <context:annotation-config></context:annotation-config>
    <tx:annotation-driven transaction-manager="transactionManager"/>
    
	<bean id="userDao" class="dao.impl.UserDaoImpl">
	</bean>
	
	<bean id="userService" class="service.UserService">
	</bean>
	
	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"> 
	     <property name="driverClassName" value="com.mysql.jdbc.Driver"/> 
	     <property name="url" value="jdbc:mysql://localhost:3306/spring"/> 
	     <property name="username" value="root"/> 
	     <property name="password" value="19870509"/> 
  	</bean> 
  	<bean id="transactionManager"  
    	class="org.springframework.orm.hibernate3.HibernateTransactionManager">  
    	<property name="sessionFactory" ref="sessionFactory" />
	</bean> 
	
	 <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">  
        <property name="dataSource" ref="dataSource" />  
        <property name="hibernateProperties">  
            <props>  
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>  
                <prop key="hibernate.show_sql">true</prop>
                <prop key="hibernate.hbm2ddl.auto">update</prop>  
                <prop key="hibernate.format_sql">true</prop>  
            </props>  
        </property> 
        <property name="annotatedClasses">  
            <list>  
                <value>model.User</value>  
            </list>  
        </property>   
    </bean>  
	
</beans>

spring和hibernate的版本都是4的，但测试时就是报java.lang.NoSuchMethodError: org.hibernate.Session.openSession(）异常，后来查了好久，都说是hibernate4的版本需要spring4才能支持，但我的都是4的。然后我开始看我的beans.xml，发现原来这里错了：

<bean id="transactionManager"  
    	class="org.springframework.orm.hibernate3.HibernateTransactionManager">

改成

<bean id="transactionManager"  
    	class="org.springframework.orm.hibernate4.HibernateTransactionManager">

即可。