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SPRing事务配置的五种方式
前段时间对Spring的事务配置做了比较深入的研究，在此之间对Spring的事务配置虽说也配置过，但是一直没有一个清楚的认识。通过这次的学习发觉Spring的事务配置只要把思路理清，还是比较好掌握的。
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="https://www.springframework.org/schema/beans"
xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance"
xmlns:context="https://www.springframework.org/schema/context"
xmlns:aop="https://www.springframework.org/schema/aop"
xsi:schemaLocation="https://www.springframework.org/schema/beans
https://www.springframework.org/schema/beans/spring-beans-2.5.xsd
https://www.springframework.org/schema/context
https://www.springframework.org/schema/context/spring-context-2.5.xsd
https://www.springframework.org/schema/aop https://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="https://www.springframework.org/schema/beans"
xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance"
xmlns:context="https://www.springframework.org/schema/context"
xmlns:aop="https://www.springframework.org/schema/aop"
xsi:schemaLocation="https://www.springframework.org/schema/beans
https://www.springframework.org/schema/beans/spring-beans-2.5.xsd
https://www.springframework.org/schema/context
https://www.springframework.org/schema/context/spring-context-2.5.xsd
https://www.springframework.org/schema/aop https://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="https://www.springframework.org/schema/beans"
xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance"
xmlns:context="https://www.springframework.org/schema/context"
xmlns:aop="https://www.springframework.org/schema/aop"
xsi:schemaLocation="https://www.springframework.org/schema/beans
https://www.springframework.org/schema/beans/spring-beans-2.5.xsd
https://www.springframework.org/schema/context
https://www.springframework.org/schema/context/spring-context-2.5.xsd
https://www.springframework.org/schema/aop https://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>
<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="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="https://www.springframework.org/schema/beans"
xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance"
xmlns:context="https://www.springframework.org/schema/context"
xmlns:aop="https://www.springframework.org/schema/aop"
xmlns:tx="https://www.springframework.org/schema/tx"
xsi:schemaLocation="https://www.springframework.org/schema/beans
https://www.springframework.org/schema/beans/spring-beans-2.5.xsd
https://www.springframework.org/schema/context
https://www.springframework.org/schema/context/spring-context-2.5.xsd
https://www.springframework.org/schema/aop https://www.springframework.org/schema/aop/spring-aop-2.5.xsd
https://www.springframework.org/schema/tx https://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>
第五种方式：全注解
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="https://www.springframework.org/schema/beans"
xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance"
xmlns:context="https://www.springframework.org/schema/context"
xmlns:aop="https://www.springframework.org/schema/aop"
xmlns:tx="https://www.springframework.org/schema/tx"
xsi:schemaLocation="https://www.springframework.org/schema/beans
https://www.springframework.org/schema/beans/spring-beans-2.5.xsd
https://www.springframework.org/schema/context
https://www.springframework.org/schema/context/spring-context-2.5.xsd
https://www.springframework.org/schema/aop https://www.springframework.org/schema/aop/spring-aop-2.5.xsd
https://www.springframework.org/schema/tx https://www.springframework.org/schema/tx/spring-tx-2.5.xsd">
<context:annotation-config />
<context:component-scan base-package="com.bluesky" />
<tx:annotation-driven 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>
</beans>
此时在DAO上需加上@Transactional注解，如下：
package com.bluesky.spring.dao;
import java.util.List;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
import org.springframework.stereotype.COMponent;
import com.bluesky.spring.domain.User;
@Transactional
@Component("userDao")
public class UserDaoImpl extends HibernateDaoSupport implements UserDao {
public List<User> listUsers() {
return this.getSession().createQuery("From User").list();
}
觉得可用，就经常来吧！ 脚本宝典 欢迎评论哦！ js脚本，巧夺天工，精雕玉琢。小宝典献丑了！
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