Spring+MyBatis+Atomikos实现JTA分布式事务

Spring+MyBatis+Atomikos实现JTA分布式事务

      项目中需要同时操作两个数据库，对两个数据库中的表同时做变更时就需要控制事务，要么全部成功，要么全部失败。

      Atomikos是一个开源的事务管理器，研究了一下，可以满足需求。

      理解分布式事务JTA原理参见:http://www.ibm.com/developerworks/cn/java/j-lo-jta/

<?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/tx http://www.springframework.org/schema/tx/spring-tx.xsd   
	http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">  
  
	<description>springJTA</description>  
	<context:annotation-config />
  
	<!-- DAO scan -->
	<context:component-scan base-package="atomikos.demo.dao.impl" />
	<context:component-scan base-package="atomikos.demo.service.impl" />
  
	<!-- 1.指定Spring配置中用到的属性文件 -->   
	<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">  
		<property name="locations">  
			<list>  
				<value>classpath:spring/dataSource.properties</value>
			</list>  
		</property> 
	</bean>   
    
	<!-- 2.配置数据源 -->  
	<bean id="dataSourceScott" class="com.atomikos.jdbc.AtomikosDataSourceBean" init-method="init" destroy-method="close">  
		<property name="uniqueResourceName" value="${scott.uniqueResourceName}"/>  
		<property name="xaDataSourceClassName" value="${jdbc.driver}"/>  
		<property name="xaProperties">  
			<props>  
				<prop key="url">${scott.url}</prop>  
				<prop key="user">${scott.username}</prop>  
				<prop key="password">${scott.password}</prop>  
			</props>  
		</property>  
		<property name="minPoolSize" value="${scott.minPoolSize}" />  
		<property name="maxPoolSize" value="${scott.maxPoolSize}" />  
		<property name="borrowConnectionTimeout" value="${scott.borrowConnectionTimeout}" />  
		<property name="testQuery" value="${scott.testQuery}" />  
		<property name="maintenanceInterval" value="${scott.maintenanceInterval}" />  
	</bean> 
	
	<bean id="dataSourceTest" class="com.atomikos.jdbc.AtomikosDataSourceBean" init-method="init" destroy-method="close">  
		<property name="uniqueResourceName" value="${test.uniqueResourceName}"/>  
		<property name="xaDataSourceClassName" value="${jdbc.driver}"/>  
		<property name="xaProperties">  
			<props>  
				<prop key="url">${test.url}</prop>  
				<prop key="user">${test.username}</prop>  
				<prop key="password">${test.password}</prop>  
			</props>  
		</property>  
		<property name="minPoolSize" value="${test.minPoolSize}" />  
		<property name="maxPoolSize" value="${test.maxPoolSize}" />  
		<property name="borrowConnectionTimeout" value="${test.borrowConnectionTimeout}" />  
		<property name="testQuery" value="${test.testQuery}" />  
		<property name="maintenanceInterval" value="${test.maintenanceInterval}" />  
	</bean> 

	<!-- 3.sqlsessionFactory -->
	<bean id="scottSqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
		<property name="configLocation">
			<value>classpath:mybatis/atomikos_demo_scottdb_mybatis-config.xml</value>
		</property>
		<property name="dataSource">
			<ref bean="dataSourceScott" />
		</property>
	</bean>
	<bean id="scottSqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate" scope="prototype">
		<constructor-arg ref="scottSqlSessionFactory" />
	</bean>
	  
	<bean id="testSqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
		<property name="mapperLocations" value="classpath*:mybatis/base/mapper-atomikos*.xml" />
		<property name="dataSource">
			<ref bean="dataSourceTest" />
		</property>
	</bean>
	<bean id="testSqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate" scope="prototype">
		<constructor-arg ref="testSqlSessionFactory" />
	</bean>
	  
	<!-- 4.事务管理器配置 -->
	<!-- 分布式事务 -->
	<bean id="atomikosTransactionManager" class="com.atomikos.icatch.jta.UserTransactionManager" 
		init-method="init" destroy-method="close">   
		<property name="forceShutdown" value="true"/>   
	</bean>   
	<bean id="atomikosUserTransaction" class="com.atomikos.icatch.jta.UserTransactionImp">   
		<property name="transactionTimeout" value="${transaction.timeout}"/>   
	</bean>  
	  
	<!-- JTA事务管理器 -->   
	<bean id="springTransactionManager" class="org.springframework.transaction.jta.JtaTransactionManager">   
		<property name="transactionManager" ref="atomikosTransactionManager"/>   
		<property name="userTransaction"    ref="atomikosUserTransaction"/>   
	</bean> 
	
	<!-- 基于注解的声明式事务 --> 
	<tx:annotation-driven transaction-manager="springTransactionManager" />
	
</beans>