spring事務的5種配置方式

  轉載：http://sosuny.iteye.com/blog/451961

Spring配置文件中關於事務配置總是由三個組成部分，分別是DataSource、TransactionManager和代理機制這三部分，無論哪種配置方式，一般變化的只是代理機制這部分。

    DataSource、TransactionManager這兩部分只是會根據數據訪問方式有所變化，比如使用Hibernate進行數據訪問 時，DataSource實際爲SessionFactory，TransactionManager的實現爲 HibernateTransactionManager。

    具體如下圖：

    根據代理機制的不同，總結了五種Spring事務的配置方式，配置文件如下：

   

第一種方式：每個Bean都有一個代理

<!----><? 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 >   

    <!-- 定義事務管理器（聲明式的事務） -->   
    < 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" >   
           <!-- 配置事務管理器 -->   
           < property name ="transactionManager" ref ="transactionManager"   />      
        < property name ="target" ref ="userDaoTarget"   />   
         < property name ="proxyInterfaces" value ="com.bluesky.spring.dao.GeneratorDao"   /> 
        <!-- 配置事務屬性 -->   
        < property name ="transactionAttributes" >   
            < props >   
                < prop key ="*" > PROPAGATION_REQUIRED </ prop > 
            </ props >   
        </ property >   
    </ bean >   
</ beans >

  

  第二種方式：所有Bean共享一個代理基類

<!----><? 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 >   

    <!-- 定義事務管理器（聲明式的事務） -->   
    < 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" >   
        <!-- 配置事務管理器 -->   
        < property name ="transactionManager" ref ="transactionManager"   />   
        <!-- 配置事務屬性 -->   
        < 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 >

第三種方式：使用攔截器（非常常用）

<!----><? 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 >   

    <!-- 定義事務管理器（聲明式的事務） -->   
    < 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"   />   
        <!-- 配置事務屬性 -->   
        < 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 >

第四種方式：使用tx標籤配置的攔截器（常用）

<!----><? 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 >   

    <!-- 定義事務管理器（聲明式的事務） -->   
    < 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 >

第五種方式：全註解

<!---->

<!----><? 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 >   

    <!-- 定義事務管理器（聲明式的事務） -->   
    < bean id ="transactionManager" 
        class ="org.springframework.orm.hibernate3.HibernateTransactionManager" > 
        < property name ="sessionFactory" ref ="sessionFactory"   /> 
    </ bean > 
    
</ beans >

此時在DAO上需加上@Transactional註解，如下：

<!---->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();
    }
    
    
}