Spring事务配置的五种方式

傷城~ 2022-03-30 12:48 263阅读 0赞

原文地址：

http://www.blogjava.net/robbie/archive/2009/04/05/264003.html

[Spring事务配置的五种方式][Spring]

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：

![1361247518_7671.jpg][]

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> 
    
         
        <bean id="transactionManager"
            class="org.springframework.orm.hibernate3.HibernateTransactionManager">
            <property name="sessionFactory" ref="sessionFactory" />
        </bean>
       
        
        <bean id="userDaoTarget" class="com.bluesky.spring.dao.UserDaoImpl">
            <property name="sessionFactory" ref="sessionFactory" />
        </bean>
       
        <bean id="userDao" 
            class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean"> 
                
               <property name="transactionManager" ref="transactionManager" />    
            <property name="target" ref="userDaoTarget" /> 
             <property name="proxyInterfaces" value="com.bluesky.spring.dao.GeneratorDao" />
             
            <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> 
    
         
        <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"> 
             
            <property name="transactionManager" ref="transactionManager" /> 
             
            <property name="transactionAttributes"> 
                <props> 
                    <prop key="*">PROPAGATION_REQUIRED</prop> 
                </props> 
            </property> 
        </bean>   
      
        
        <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> 
    
         
        <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" /> 
             
            <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> 
     
        
        <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> 
    
         
        <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

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();
        }
       
       
    }

[Spring]: http://www.blogjava.net/robbie/archive/2009/04/05/264003.html
[1361247518_7671.jpg]: https://img-my.csdn.net/uploads/201302/19/1361247518_7671.jpg