Spring事务置的五种方式.docx
Spring事务配置的五种方式 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=" springframework.org/schema/beans"xmlns:xsi=" w3.org/2001/XMLSchema-instance"xmlns:context=" springframework.org/schema/context"xmlns:aop=" springframework.org/schema/aop"xsi:schemaLocation springframework.org/schema/aop springframework.org/schema/aop/spring-aop-2.5.xsd"> <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> <property name="configLocation" value="" /> <property name="configurationClass" value="" /> </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=""> <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="" /> <!- 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=" springframework.org/schema/beans"xmlns:xsi=" w3.org/2001/XMLSchema-instance"xmlns:context=" springframework.org/schema/context"xmlns:aop=" springframework.org/schema/aop"xsi:schemaLocation springframework.org/schema/aop springframework.org/schema/aop/spring-aop-2.5.xsd"> <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> <property name="configLocation" value="" /> <property name="configurationClass" value="" /> </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=""> <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=" springframework.org/schema/beans"xmlns:xsi=" w3.org/2001/XMLSchema-instance"xmlns:context=" springframework.org/schema/context"xmlns:aop=" springframework.org/schema/aop"xsi:schemaLocation springframework.org/schema/aop springframework.org/schema/aop/spring-aop-2.5.xsd"> <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> <property name="configLocation" value="" /> <property name="configurationClass" value="" /> </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> <bean class="org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator"> <property name="beanNames"> <list> <value>*Dao</value> </list> </property> <property name="interceptorNames"> <list> <value>transactionInterceptor</value> </list> </property> </bean> <!- 配置DAO -> <bean id="userDao" class=""> <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=" springframework.org/schema/beans"xmlns:xsi=" w3.org/2001/XMLSchema-instance"xmlns:context=" springframework.org/schema/context"xmlns:aop=" springframework.org/schema/aop"xmlns:tx=" springframework.org/schema/tx"xsi:schemaLocation springframework.org/schema/tx springframework.org/schema/tx/spring-tx-2.5.xsd"> <context:annotation-config /> <context:ponent-scan base-package=".bluesky" /> <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> <property name="configLocation" value="" /> <property name="configurationClass" value="" /> </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<* .*.*<.>>" /> <aop:advisor advice-ref="txAdvice"pointcut-ref="interceptorPointCuts" /> </aop:config> </beans>第五种方式：全注解 <?xml version="1.0" encoding="UTF-8"?><beans xmlns=" springframework.org/schema/beans"xmlns:xsi=" w3.org/2001/XMLSchema-instance"xmlns:context=" springframework.org/schema/context"xmlns:aop=" springframework.org/schema/aop"xmlns:tx=" springframework.org/schema/tx"xsi:schemaLocation springframework.org/schema/tx springframework.org/schema/tx/spring-tx-2.5.xsd"> <context:annotation-config /> <context:ponent-scan base-package=".bluesky" /> <tx:annotation-driven transaction-manager="transactionManager"/> <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> <property name="configLocation" value="" /> <property name="configurationClass" value="" /> </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></beans>此时在DAO上需加上Transactional注解,如下： package ;import ;import ;import ;import org.springframework.orm.hibernate3.support.HibernateDaoSupport;import ;import ;Transactionalponent<"userDao">public class UserDaoImpl extends HibernateDaoSupport implements UserDao public List<User> listUsers<> return this.getSession<>.createQuery<"from User">.list<>
