Spring中事务管理的几种配法

这里假定我们已经有了一些现成的类和接口，比如说

1. 一个现成的User POJO对象

2. 一个UserDao接口和UserDaoHibernateImpl实现类

3. 一个UserService接口和UserServiceImpl实现类

 

具体配置方法如下：

1. 使用spring的BeanNameAutoProxyCreator和TransactionInterceptor配置

<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd" default-lazy-init="true"> <bean id="userService" class="test.service.UserServiceImpl"> <property name="userDao" ref="userDao"/> </bean> <bean id="userDao" class="test.dao.UserDaoHibernateImpl"> <property name="sessionFactory" ref="mySessionFactory"/> </bean> <bean class="org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator"> <property name="beanNames"> <list> <value>userService</value> </list> </property> <property name="interceptorNames"> <list> <value>myTransactionInterceptor</value> </list> </property> </bean> <bean id="myTransactionInterceptor" class="org.springframework.transaction.interceptor.TransactionInterceptor"> <property name="transactionManager"> <ref bean="myTransactionManager" /> </property> <property name="transactionAttributes"> <props> <prop key="save*">PROPAGATION_REQUIRED</prop> <prop key="del*">PROPAGATION_REQUIRED</prop> <prop key="update*">PROPAGATION_REQUIRED</prop> <prop key="create*">PROPAGATION_REQUIRED</prop> <prop key="add*">PROPAGATION_REQUIRED</prop> <prop key="find*">PROPAGATION_REQUIRED,readOnly</prop> <prop key="get*">PROPAGATION_REQUIRED,readOnly</prop> <prop key="load*">PROPAGATION_REQUIRED,readOnly</prop> <prop key="*">PROPAGATION_REQUIRED</prop> </props> </property> </bean> <bean id="myTransactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager"> <property name="sessionFactory" ref="mySessionFactory"/> </bean> <bean id="mySessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> <property name="dataSource" ref="myDataSource"/> <property name="mappingResources"> <list> <value>test/user.hbm.xml</value> </list> </property> <property name="hibernateProperties"> <value>hibernate.dialect=org.hibernate.dialect.HSQLDialect</value> </property> </bean> <bean id="myDataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="org.hsqldb.jdbcDriver"/> <property name="url" value="jdbc:hsqldb:res:hsqldb/testdb"/> <property name="username" value="sa"/> <property name="password" value=""/> </bean> </beans>  

 

2. 使用spring常用的proxy配法，这里使用了对abstract bean的定义

<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd" default-lazy-init="true"> <bean id="userService" parent="myProxyTemplate"> <property name="target" ref="userServiceTarget"/> <property name="proxyInterfaces" value="test.service.UserService"/> </bean> <bean id="userServiceTarget" class="test.service.UserServiceImpl"> <property name="userDao" ref="userDao"/> </bean> <bean id="userDao" class="test.dao.UserDaoHibernateImpl"> <property name="sessionFactory" ref="mySessionFactory"/> </bean> <bean id="myProxyTemplate" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean"> <property name="transactionManager"> <ref bean="myTransactionManager" /> </property> <property name="transactionAttributes"> <props> <prop key="save*">PROPAGATION_REQUIRED</prop> <prop key="del*">PROPAGATION_REQUIRED</prop> <prop key="update*">PROPAGATION_REQUIRED</prop> <prop key="create*">PROPAGATION_REQUIRED</prop> <prop key="add*">PROPAGATION_REQUIRED</prop> <prop key="find*">PROPAGATION_REQUIRED,readOnly</prop> <prop key="get*">PROPAGATION_REQUIRED,readOnly</prop> <prop key="load*">PROPAGATION_REQUIRED,readOnly</prop> <prop key="list*">PROPAGATION_REQUIRED,readOnly</prop> <prop key="*">PROPAGATION_REQUIRED</prop> </props> </property> </bean> <bean id="myTransactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager"> <property name="sessionFactory" ref="mySessionFactory"/> </bean> <bean id="mySessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> <property name="dataSource" ref="myDataSource"/> <property name="mappingResources"> <list> <value>test/user.hbm.xml</value> </list> </property> <property name="hibernateProperties"> <value>hibernate.dialect=org.hibernate.dialect.HSQLDialect</value> </property> </bean> <bean id="myDataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="org.hsqldb.jdbcDriver"/> <property name="url" value="jdbc:hsqldb:res:hsqldb/testdb"/> <property name="username" value="sa"/> <property name="password" value=""/> </bean> </beans>  

 

3. 使用spring提供的tx命名空间和aop配置

<?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-2.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd" default-lazy-init="true"> <bean id="userService" class="test.UserServiceImpl"> <property name="userDao" ref="userDao"/> </bean> <bean id="userDao" class="test.UserDaoHibernateImpl"> <property name="sessionFactory" ref="mySessionFactory"/> </bean> <tx:advice id="txAdvice" transaction-manager="myTransactionManager"> <tx:attributes> <tx:method name="get*" propagation="SUPPORTS" read-only="true"/> <tx:method name="list*" propagation="SUPPORTS" read-only="true"/> <tx:method name="find*" propagation="SUPPORTS" read-only="true"/> <tx:method name="*" propagation="REQUIRED" /> </tx:attributes> </tx:advice> <aop:config> <aop:pointcut id="userServiceOperation" expression="execution(* *..test.UserService.*(..))"/> <aop:advisor advice-ref="txAdvice" pointcut-ref="userServiceOperation"/> </aop:config> <bean id="myTransactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager"> <property name="sessionFactory" ref="mySessionFactory"/> </bean> <bean id="mySessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> <property name="dataSource" ref="myDataSource"/> <property name="mappingResources"> <list> <value>test/user.hbm.xml</value> </list> </property> <property name="hibernateProperties"> <value>hibernate.dialect=org.hibernate.dialect.HSQLDialect</value> </property> </bean> <bean id="myDataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="org.hsqldb.jdbcDriver"/> <property name="url" value="jdbc:hsqldb:res:hsqldb/testdb"/> <property name="username" value="sa"/> <property name="password" value=""/> </bean> </beans>