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将事务管理纳入到Service操作的执行中，你可以使用Spring通用的声明式的事务管理功能。例如：
<?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: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-2.5.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd">
<bean id="myTxManager" class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="myEmf"/>
</bean>
<bean id="myProductService" class="product.ProductServiceImpl">
<property name="productDao" ref="myProductDao"/>
</bean>
<aop:config>
<aop:pointcut id="productServiceMethods" expression="execution(* product.ProductService.*(..))"/>
<aop:advisor advice-ref="txAdvice" pointcut-ref="productServiceMethods"/>
</aop:config>
<tx:advice id="txAdvice" transaction-manager="myTxManager">
<tx:attributes>
<tx:method name="increasePrice*" propagation="REQUIRED"/>
<tx:method name="someOtherBusinessMethod" propagation="REQUIRES_NEW"/>
<tx:method name="*" propagation="SUPPORTS" read-only="true"/>
</tx:attributes>
</tx:advice>
</beans>
Spring JPA允许将一个已配置的JpaTransactionManager暴露一个JPA事务给访问同一个JDBC DataSource 的JDBC访问代码，
前提条件是，被注册的 JpaDialect 能够支持获取底层的JDBC Connection。
Spring提供了针对Toplink和Hibernate的JPA实现的Dialect。具体参见下一节有关 JpaDialect 的机制。