spring transaction
三个组成部分:DataSource、TransactionManager和代理机制
无论哪种配置方式，一般变化的只是代理机制这部分
DataSource、TransactionManager 只根据数据访问方式有所变化
Hibernate DataSource 实现为 SessionFactory
TransactionManager 实现为 HibernateTransactionManager
一 、每个Bean都有一个代理
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<?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.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.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 -->
<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>
二、所有Bean共享一个代理基类
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<?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.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.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 -->
<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>
三、拦截器
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<?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.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.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 -->
<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>
四、tx 标签配置的拦截器
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<? 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.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.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>
五、全注解
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<? 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:tx ="http://www.springframework.org/schema/tx"
xsi:schemaLocation ="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.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>
DAO 加上@Transactional
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@ Transactional
@ Component( " userDao " )
public class UserDaoImpl extends HibernateDaoSupport implements UserDao {
public List < User > listUsers() {
return this . getSession(). createQuery( " from User " ). list();
}
categories:
dev
tags:
java
spring
2018/02/12
