JPA配置：
<persistence-unit name="itcast" transaction-type="RESOURCE_LOCAL">
SPRING配置：
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager"> <property name="entityManagerFactory" ref="entityManagerFactory" /> </bean>
<tx:annotation-driven transaction-manager="transactionManager" />
<persistence-unit name="itcast" transaction-type="RESOURCE_LOCAL">
SPRING配置：
<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager"> <property name="entityManagerFactory" ref="entityManagerFactory" /> </bean>
<tx:annotation-driven transaction-manager="transactionManager" />
