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Spring事务配置的五种方法

2013-01-19 21:41 706 查看
Spring事务配置的五种方法
2009-04-24 10:20

总结如下：

Spring配置文件中关于事务配置总是由三个组成部分，分别是DataSource、TransactionManager和代理机制这三部分，无论哪种配置方式，一般变化的只是代理机制这部分。

DataSource、TransactionManager这两部分只是会根据数据访问方式有所变化，比如使用Hibernate进行数据访问时，DataSource实际为SessionFactory，TransactionManager的实现为HibernateTransactionManager。

具体如下图：

根据代理机制的不同，总结了五种Spring事务的配置方式，配置文件如下：

第一种方式：每个Bean都有一个代理

<?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"

xsi:schemaLocation="http://www.springframework.org/schema/beans

http://www.springframework.org/schema/beans/spring-beans-2.5.xsd

http://www.springframework.org/schema/context

http://www.springframework.org/schema/context/spring-context-2.5.xsd

http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd">

<bean id="sessionFactory"

class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">

<property name="configLocation" value="classpath:hibernate.cfg.xml" />

<property name="configurationClass"value="org.hibernate.cfg.AnnotationConfiguration" />

</bean>

<!-- 定义事务管理器（声明式的事务） -->

<bean id="transactionManager"

class="org.springframework.orm.hibernate3.HibernateTransactionManager">

<property name="sessionFactory" ref="sessionFactory" />

</bean>

<!-- 配置DAO -->

<bean id="userDaoTarget" class="com.bluesky.spring.dao.UserDaoImpl">

<property name="sessionFactory" ref="sessionFactory" />

</bean>

<bean id="userDao"

class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">

<!-- 配置事务管理器 -->

<property name="transactionManager" ref="transactionManager" />

<property name="target" ref="userDaoTarget" />

<property name="proxyInterfaces" value="com.bluesky.spring.dao.GeneratorDao"/>

<!-- 配置事务属性 -->

<property name="transactionAttributes">

<props>

<prop key="*">PROPAGATION_REQUIRED</prop>

</props>

</property>

</bean>

</beans>

第二种方式：所有Bean共享一个代理基类

<?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"

xsi:schemaLocation="http://www.springframework.org/schema/beans

http://www.springframework.org/schema/beans/spring-beans-2.5.xsd

http://www.springframework.org/schema/context

http://www.springframework.org/schema/context/spring-context-2.5.xsd

http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd">

<bean id="sessionFactory"

class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">

<property name="configLocation" value="classpath:hibernate.cfg.xml" />

<property name="configurationClass"value="org.hibernate.cfg.AnnotationConfiguration" />

</bean>

<!-- 定义事务管理器（声明式的事务） -->

<bean id="transactionManager"

class="org.springframework.orm.hibernate3.HibernateTransactionManager">

<property name="sessionFactory" ref="sessionFactory" />

</bean>

<bean id="transactionBase"

class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean"

lazy-init="true" abstract="true">

<!-- 配置事务管理器 -->

<property name="transactionManager" ref="transactionManager" />

<!-- 配置事务属性 -->

<property name="transactionAttributes">

<props>

<prop key="*">PROPAGATION_REQUIRED</prop>

</props>

</property>

</bean>

<!-- 配置DAO -->

<bean id="userDaoTarget" class="com.bluesky.spring.dao.UserDaoImpl">

<property name="sessionFactory" ref="sessionFactory" />

</bean>

<bean id="userDao" parent="transactionBase" >

<property name="target" ref="userDaoTarget" />

</bean>

</beans>

第三种方式：使用拦截器

<?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"

xsi:schemaLocation="http://www.springframework.org/schema/beans

http://www.springframework.org/schema/beans/spring-beans-2.5.xsd

http://www.springframework.org/schema/context

http://www.springframework.org/schema/context/spring-context-2.5.xsd

http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd">

<bean id="sessionFactory"

class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">

<property name="configLocation" value="classpath:hibernate.cfg.xml" />

<property name="configurationClass"value="org.hibernate.cfg.AnnotationConfiguration" />

</bean>

<!-- 定义事务管理器（声明式的事务） -->

<bean id="transactionManager"

class="org.springframework.orm.hibernate3.HibernateTransactionManager">

<property name="sessionFactory" ref="sessionFactory" />

</bean>

<bean id="transactionInterceptor"

class="org.springframework.transaction.interceptor.TransactionInterceptor">

<property name="transactionManager" ref="transactionManager" />

<!-- 配置事务属性 -->

<property name="transactionAttributes">

<props>

<prop key="*">PROPAGATION_REQUIRED</prop>

</props>

</property>

</bean>

<beanclass="org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator">

<property name="beanNames">

<list> <!—设置注入的 要交给Spring托管事务的的Bean名 这里是把*Dao 交给Spring托管事务à

<value>*Dao</value>

</list>

</property>

<property name="interceptorNames">

<list>

<value>transactionInterceptor</value>

</list>

</property>

</bean>

<!-- 配置DAO -->

<bean id="userDao" class="com.bluesky.spring.dao.UserDaoImpl">

<property name="sessionFactory" ref="sessionFactory" />

</bean>

</beans>
第四种方式：使用tx标签配置的拦截器
<?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-2.5.xsd

http://www.springframework.org/schema/context

http://www.springframework.org/schema/context/spring-context-2.5.xsd

http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd

http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">

<context:annotation-config />

<context:component-scan base-package="com.bluesky" />

<bean id="sessionFactory"

class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">

<property name="configLocation" value="classpath:hibernate.cfg.xml" />

<property name="configurationClass" value="org.hibernate.cfg.AnnotationConfiguration" />

</bean>

<!-- 定义事务管理器（声明式的事务） -->

<bean id="transactionManager"

class="org.springframework.orm.hibernate3.HibernateTransactionManager">

<property name="sessionFactory" ref="sessionFactory" />

</bean>

<tx:advice id="txAdvice" transaction-manager="transactionManager">

<tx:attributes>

<tx:method name="*" propagation="REQUIRED" />

</tx:attributes>

</tx:advice>

<aop:config>

<aop:pointcut id="interceptorPointCuts"

expression="execution(* com.bluesky.spring.dao.*.*(..))" />

<aop:advisor advice-ref="txAdvice"

pointcut-ref="interceptorPointCuts" />

</aop:config>

</beans>

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