解决办法
原先:<bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"> 改成:<bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean"> 原先:<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager"> 改成:<bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">