Spring事务配置的五种形式（转）

Spring事务配置的五种方式（转）

??? 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

<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> --><?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

<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> --><?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

<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> --><?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

<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> --><?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
<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> -->

<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> --><?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：

<!--<br /> <br /> Code highlighting produced by Actipro CodeHighlighter (freeware)<br /> http://www.CodeHighlighter.com/<br /> <br /> -->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();
??? }
???
???
}

?

?

第一种方式与第二种方式是类似的，在所有方式中，第一种方式所需写的配置文件最多。
在Spring2.0时，一般都采用方式三，主要带来的好处就是配置文件的量变小。
在Spring2.5时，可以采用方式五，这样基本可以做到0配置了

查看更多 下一篇