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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:
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
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< 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 >
< 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
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xml version="1.0" encoding="UTF-8"
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< 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 >
< 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
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xml version="1.0" encoding="UTF-8"
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< 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 >
< 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
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xml version="1.0" encoding="UTF-8"
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< 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 >
< 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
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xml version="1.0" encoding="UTF-8"
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< 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 >
< 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 />
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<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();
}
}
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();
}
}
发表评论
-
[转]javaIo
2011-03-29 20:58 807Java I/O系统的类实在是太多了,这里我们只学习一些基本的 ... -
java IO包和设计模式分析
2011-03-17 14:50 0http://hi.baidu.com/langchao826 ... -
Log4J使用完全手册
2010-10-18 15:23 661Log4J使用完全手册 1 20 ... -
反射实现 AOP 动态代理模式(Spring AOP 的实现 原理)转
2010-07-21 17:07 1024实AOP的意思就是面向切面编程.OO注重的是我们解 ... -
jetty 使用整理
2008-11-26 11:59 23711.整合eclipse 2.由于使用了内存映射文件,所以会 ... -
[转载]Commons-logging + Log4j 入门指南
2008-10-31 10:34 973Commons-logging + Log4j ... -
Java动态程序设计:反射介绍
2008-10-29 14:29 953Java动态程序设计:反 ... -
MethodInvokingTimerTaskFactoryBean 的使用
2008-07-02 16:45 2174集成TimerTask 容易造成对业务代码的侵入,这种方式更符 ... -
java5新特性
2008-06-27 09:53 1048Java 5.0发布了,许多人都将开始使用这个JDK版本的一些 ... -
osgi实战,学习笔记
2008-05-12 14:57 2320很久就了解了一些OSGI. ...
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Spring事务原理是指Spring框架中的一种机制,用于管理事务,并提供了多种配置方式。事务是指一系列的操作,作为一个整体执行,如果其中某个操作失败,整个事务将回滚。Spring事务原理围绕着两个核心:...
下面将详细介绍Spring的五种事务配置方式。 1. **基于XML的事务配置** - **每个Bean都有一个代理**: 在这种配置方式中,每个需要事务管理的Bean都会有一个对应的代理Bean。例如,对于DAO层的UserDao,我们首先...
Spring事务配置的五种方式 Spring框架中事务配置是非常重要的一部分,通常由三个组成部分组成,即DataSource、TransactionManager和代理机制。无论采取何种配置方式,代理机制部分总是变化的,而DataSource和...
Spring框架在处理事务时提供了五种不同的配置方式,这些配置主要涉及到事务的声明式管理和编程式管理。在Spring中,事务管理通常分为三部分:DataSource、TransactionManager和代理机制。DataSource是数据源,...
本文将详细介绍Spring配置事务的五种方法,每种方法都基于相同的基本组件:DataSource、TransactionManager以及代理机制。理解这些配置方式有助于更好地控制事务在应用程序中的行为。 1. **每个Bean都有一个代理** ...
本文将详细介绍Spring事务配置的五种方式,帮助你深入理解如何在Spring应用中管理事务。 1. **基于XML的声明式事务管理** 第一种方式是在每个Bean上使用代理来实现事务管理。首先,配置`DataSource`,通常是`...
总结,Spring事务配置的五种方式各有特点,需要根据项目实际需求进行选择。编程式事务灵活但侵入性强,声明式事务简洁且易于维护,分布式环境下则需考虑JTA和传播行为。在实践中,结合使用和灵活调整,才能确保事务...