spring几种事务配置

lygle 写道

   根据代理机制不同，有以下几种配置方式：

 

 

 先定义一个DAO接口及实现类:

 

 

public interface IUserDao { public void insertUser(UserTable user); } 

  

 

实现类：

 

public class UserDaoImpl extends HibernateDaoSupport implements IUserDao{ public void insertUser(UserTable user) { getHibernateTemplate().saveOrUpdate(user); } } 

 

 

 

第一种

 

    为每个bean设置一个代理，这种是根据具体需求来定，如要对具体到每个交易进行事务操作的话，这个方式是最合适的；

<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd"> <!-- 每个bean都有一个代理 --> <beans> <!-- sessionFactory相当于spring datasource --> <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="userDao" class="org.lgh.spring.transaction2.UserDaoImpl"> <property name="sessionFactory" ref="sessionFactory" /> </bean> <!-- 每个bean都有一个代理 <property name="target" ref="userDaoTarget" /> --> <bean id="userDaoProxy" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean"> <!-- 配置事务管理器 --> <property name="transactionManager" ref="transactionManager" /> <property name="target" ref="userDao" /> <property name="proxyInterfaces" value="org.lgh.spring.transaction2.IUserDao" /> <!-- 配置事务属性 --> <property name="transactionAttributes"> <props> <prop key="*">PROPAGATION_REQUIRED</prop> </props> </property> </bean> </beans> 

 

第二种:

     所有的bean共享一个代理

<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd"> <!-- 所有的bean共享一个代理--> <beans> <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> <!-- 所有的bean共享一个代理/> --> <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="userDao" class="org.lgh.spring.transaction3.UserDaoImpl"> <property name="sessionFactory" ref="sessionFactory" /> </bean> <!-- 所有的bean共享一个代理/> --> <bean id="userDaoProxy" parent="transactionBase" > <property name="target" ref="userDao" /> </bean> </beans> 

 

 

 

 

 

 

第三种:

   使用拦截器 来配置你的事务，这个主要是进行一些方法调用前后进行一些其他事件的处理，如进行权限检查等...

代码如下:

 

<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd"> <!-- 使用拦截器 --> <beans> <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> <bean name="logger" class="org.lgh.spring.transaction4.SpringAOPInterceptor"> </bean> <bean id="logBeforeAdvice" class="com.spring.advices.LogBeforeAdvice"> </bean> <!-- 定义BeanNameAutoProxyCreator,该bean是个bean后处理器，无需被引用，因此没有id属性 这个bean后处理器，根据事务拦截器为目标bean自动创建事务代理 --> <bean class="org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator"> <!-- 加上此句就不会抛出 $Proxy cannot be cast的异常啦--> <property name="proxyTargetClass"> <value>true</value> </property> <property name="beanNames"> <list> <!-- *Dao对应下面的userDao要对它进行拦截--> <value>userDao</value> </list> </property> <property name="interceptorNames"> <list> <value>transactionInterceptor</value> <value>logBeforeAdvice</value> </list> </property> </bean> <!-- 配置DAO --> <bean id="userDao" class="org.lgh.spring.transaction4.UserDaoImpl"> <property name="sessionFactory" ref="sessionFactory" /> </bean> <!-- 服务层 service--> <bean id="userService" class="org.lgh.spring.transaction4.UserServiceImpl"> <property name="userDao" ref="userDao" /> </bean> </beans> 
 

 

 

  

 

 

 

 

 

 

 

 

 

第四种：

  使用aop:config配置方式

<?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:="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="org.lgh.spring.transaction5" /> <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"> <property name="configLocation" value="classcontext="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocationpath: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 proxy-target-class="true" > <aop:pointcut id="interceptorPointCuts" expression="execution(* org.lgh.spring.transaction5.*.*(..))" /> <aop:advisor advice-ref="txAdvice" pointcut-ref="interceptorPointCuts" /> </aop:config> <!-- 配置DAO --> <bean id="userDao" class="org.lgh.spring.transaction5.UserDaoImpl"> <property name="sessionFactory" ref="sessionFactory" /> </bean> </beans> 

 

 

 

 

 

 

 

 

 

 

还有一种就是采用全注解方式：

    代码如下:

<?xml version="1.0" encoding="UTF-8"?> <!--全注解 --> <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="org.lgh.spring.transaction6" /> <tx:annotation-driven proxy-target-class ="true" transaction-manager="transactionManager"/> <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="userDao" class="org.lgh.spring.transaction6.UserDaoImpl"> <property name="sessionFactory" ref="sessionFactory" /> </bean> </beans> 

 

 

 

所用到的jar如下:

 

 另附配置源码

 

 

 

 

评论

1 楼 wpf523 2012-08-01  

表示对事务的理解 太浅，先收下。