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Spring事务配置的五种方法(一)

2013-05-29 20:44 323 查看
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="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">

<propertyname="configLocation" value="classpath:hibernate.cfg.xml"/>

<propertyname="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">

<propertyname="sessionFactory" ref="sessionFactory"/>

</bean>



<!-- 配置DAO -->

<bean
id="userDaoTarget" class="com.bluesky.spring.dao.UserDaoImpl">

<propertyname="sessionFactory" ref="sessionFactory"/>

</bean>



<bean
id="userDao"

class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">

<!-- 配置事务管理器 -->

<propertyname="transactionManager" ref="transactionManager"/>

<propertyname="target" ref="userDaoTarget"/>

<propertyname="proxyInterfaces" value="com.bluesky.spring.dao.GeneratorDao"/>

<!-- 配置事务属性 -->

<propertyname="transactionAttributes">

<props>

<propkey="*">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">

<propertyname="configLocation" value="classpath:hibernate.cfg.xml"/>

<propertyname="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">

<propertyname="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 -->

<propertyname="transactionManager" ref="transactionManager"/>

<!-- 配置事务属性 -->

<propertyname="transactionAttributes">

<props>

<propkey="*">PROPAGATION_REQUIRED</prop>

</props>

</property>

</bean>



<!-- 配置DAO -->

<bean
id="userDaoTarget" class="com.bluesky.spring.dao.UserDaoImpl">

<propertyname="sessionFactory" ref="sessionFactory"/>

</bean>



<bean
id="userDao" parent="transactionBase">

<propertyname="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">

<propertyname="configLocation" value="classpath:hibernate.cfg.xml"/>

<propertyname="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">

<propertyname="sessionFactory" ref="sessionFactory"/>

</bean>



<bean
id="transactionInterceptor"

class="org.springframework.transaction.interceptor.TransactionInterceptor">

<propertyname="transactionManager" ref="transactionManager"/>

<!-- 配置事务属性 -->

<propertyname="transactionAttributes">

<props>

<propkey="*">PROPAGATION_REQUIRED</prop>

</props>

</property>

</bean>



<bean
class="org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator">

<propertyname="beanNames">

<list>

<value>*Dao</value>

</list>

</property>

<propertyname="interceptorNames">

<list>

<value>transactionInterceptor</value>

</list>

</property>

</bean>



<!-- 配置DAO -->

<bean
id="userDao" class="com.bluesky.spring.dao.UserDaoImpl">

<propertyname="sessionFactory" ref="sessionFactory"/>

</bean>

</beans>
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