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Spring事务配置的五种方式  

2010-12-09 17:51:09|  分类: ssh |  标签: |举报 |字号 订阅

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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:

[ZZ] Spring事务配置的五种方式 - 做只猪不容易 - 勤奋又快乐的猪

    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> 

    <!-- 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="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> 

    <!-- 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="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> 

    <!-- 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="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> 

    <!-- 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="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" />

    <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();

    }

   

    [ZZ] Spring事务配置的五种方式 - 做只猪不容易 - 勤奋又快乐的猪

}

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