事务管理的五种方法.docx
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事务管理的五种方法
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
xmlversion="1.0"encoding="UTF-8"?
>
//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/aophttp:
//www.springframework.org/schema/aop/spring-aop-2.5.xsd">
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
hibernate.cfg.xml" />
--定义事务管理器(声明式的事务)-->
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
--配置DAO-->
class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
--配置事务管理器-->
--配置事务属性-->
PROPAGATION_REQUIRED
第二种方式:
所有Bean共享一个代理基类
xmlversion="1.0"encoding="UTF-8"?
>
//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/aophttp:
//www.springframework.org/schema/aop/spring-aop-2.5.xsd">
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
hibernate.cfg.xml" />
--定义事务管理器(声明式的事务)-->
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean"
lazy-init="true"abstract="true">
--配置事务管理器-->
--配置事务属性-->
PROPAGATION_REQUIRED
--配置DAO-->
第三种方式:
使用拦截器
xmlversion="1.0"encoding="UTF-8"?
>
//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/aophttp:
//www.springframework.org/schema/aop/spring-aop-2.5.xsd">
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
hibernate.cfg.xml" />
--定义事务管理器(声明式的事务)-->
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
class="org.springframework.transaction.interceptor.TransactionInterceptor">
--配置事务属性-->
PROPAGATION_REQUIRED
*Dao
transactionInterceptor
--配置DAO-->
第四种方式:
使用tx标签配置的拦截器
xmlversion="1.0"encoding="UTF-8"?
>
//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/aophttp:
//www.springframework.org/schema/aop/spring-aop-2.5.xsd
http:
//www.springframework.org/schema/txhttp:
//www.springframework.org/schema/tx/spring-tx-2.5.xsd">
annotation-config/>
component-scanbase-package="com.bluesky" />
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
hibernate.cfg.xml" />
--定义事务管理器(声明式的事务)-->
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
adviceid="txAdvice"transaction-manager="transactionManager">
attributes>
methodname="*"propagation="REQUIRED" />
attributes>
advice>
config>
pointcutid="interceptorPointCuts"
expression="execution(*com.bluesky.spring.dao.*.*(..))" />
advisoradvice-ref="txAdvice"
pointcut-ref="interceptorPointCuts" />
config>
第五种方式:
全注解
xmlversion="1.0"encoding="UTF-8"?
>
//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/aophttp:
//www.springframework.org/schema/aop/spring-aop-2.5.xsd
http:
//www.springframework.org/schema/txhttp:
//www.springframework.org/schema/tx/spring-tx-2.5.xsd">
annotation-config/>
component-scanbase-package="com.bluesky" />
annotation-driventransaction-manager="transactionManager"/>
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
hibernate.cfg.xml" /