Spring事务配置的五种方式

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" > 
         < property name ="configLocation"  value ="classpath:hibernate.cfg.xml"   /> 
         < property name ="configurationClass"  value ="org.hibernate.cfg.AnnotationConfiguration"   />
     bean > 

      
     < bean id ="transactionManager"
        class ="org.springframework.orm.hibernate3.HibernateTransactionManager" >
         < property name ="sessionFactory"  ref ="sessionFactory"   />
     bean >
    
    
     < bean id ="userDaoTarget"  class ="com.bluesky.spring.dao.UserDaoImpl" >
         < property name ="sessionFactory"  ref ="sessionFactory"   />
     bean >
    
     < bean id ="userDao"  
        class ="org.springframework.transaction.interceptor.TransactionProxyFactoryBean" > 
             
            < property name ="transactionManager"  ref ="transactionManager"   />    
         < property name ="target"  ref ="userDaoTarget"   /> 
          < property name ="proxyInterfaces"  value ="com.bluesky.spring.dao.GeneratorDao"   />
          
         < 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 > 

       
     < 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" > 
           
         < property name ="transactionManager"  ref ="transactionManager"   /> 
           
         < property name ="transactionAttributes" > 
             < props > 
                 < prop key ="*" >PROPAGATION_REQUIRED prop > 
             props > 
         property > 
     bean >   
   
    
     < 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 > 

       
     < 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"   /> 
           
         < 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 > 
  
    
     < 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 > 

       
     < 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

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 listUsers() {
        return this.getSession().createQuery("from User").list();
    }
    
    
}