spring +hibernate+jotm整合多数据库事务控制

假如业务中要用到多个数据库，我们希望在业务方法中，当对某一个数据库的数据表进行操作的事务失败并回退（rollback），另外某一个数据库的数据表的操作事务也要回退，但应用一般的事务管理达不到这样的事务管理效果，这就需要实现 JTA 事务管理了。
这里我们在SPring中集成 Object web 的一个开源JTA实现JOTM (可以在http://jotm.objectweb.org下载完整版) 来实现JTA事务管理。

1、将必须的类包放入类路径中：
 jotm.jar, xapool.jar, jotm_jrmp_stubs.jar, jta-spect1_0_1.jar, connector-1_5.jar等等。

2、编写JOTM配置文件carol.properties，将其放到类路径下：
Java代码
#JNDI调用协议 
carol.protocols=jrmp 
#不使用CAROL JNDI封装器 
carol.start.jndi=false 
#不启动命名服务器 
carol.start.ns=false 

 

spring为JOTM提供了一个org.springframework.transaction.jta.JotmFactoryBean 支持类，可以用其方便地创建本地JOTM实例。

<?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:p="http://www.springframework.org/schema/p"
	xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop"
	xsi:schemaLocation="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 
	http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">

	<bean id="mysqldatasource" class="org.enhydra.jdbc.pool.StandardXAPoolDataSource">
		<property name="dataSource"><!--内部XA数据源
			--><bean class="org.enhydra.jdbc.standard.StandardXADataSource"
				destroy-method="shutdown">
				<property name="transactionManager" ref="jotm" />
				<property name="driverName" value="com.mysql.jdbc.Driver" />
				<property name="url" value="jdbc:mysql://localhost:3306/mdg" />
			</bean>
		</property>
		<property name="user" value="root" />
		<property name="password" value="8324759" />
	</bean>


	<bean id="h2datasource" class="org.enhydra.jdbc.pool.StandardXAPoolDataSource">
		<property name="dataSource"><!--内部XA数据源
			--><bean class="org.enhydra.jdbc.standard.StandardXADataSource"
				destroy-method="shutdown">
				<property name="transactionManager" ref="jotm" />
				<property name="driverName" value="com.mysql.jdbc.Driver" />
				<property name="url" value="jdbc:mysql://localhost:3306/test" />
			</bean>
		</property>
		<property name="user" value="root" />
		<property name="password" value="8324759" />
	</bean>




	<bean id="sessionFactory"
		class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
		
			<!--<property name="configLocation" value="classpath:hibernate.cfg.xml">
		</property>
		--><property name="dataSource" ref="mysqldatasource">
		</property>

		<property name="mappingResources">
			<list>
				<value>com/ky/ssh/model/Admin.hbm.xml</value>
			</list>
		</property>
		<property name="hibernateProperties">
			<props>
				<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
				<prop key="hibernate.show_sql">true</prop>
				<prop key="hibernate.jdbc.batch_size">50</prop>
				<prop key="hibernate.cache.use_query_cache">true</prop>
				<prop key="hibernate.cache.provider_class">org.hibernate.cache.EhCacheProvider</prop>
			</props>
		</property>
		<property name="jtaTransactionManager">
			<ref bean="jotm" />
		</property>
	</bean>

	<bean id="sessionFactory2"
		class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
		<!--<property name="configLocation" value="classpath:hibernate3.cfg.xml">
		</property>
	
			--><property name="dataSource" ref="h2datasource">
				</property>
	
			<property name="mappingResources">
				<list>
					<value>com/ky/ssh/database/User.hbm.xml</value>
				</list>
			</property>
			<property name="hibernateProperties">
				<props>
					<prop key="hibernate.dialect">org.hibernate.dialect.MYSQLDialect</prop>
					<prop key="hibernate.show_sql">true</prop>
					<prop key="hibernate.jdbc.batch_size">50</prop>
					<prop key="hibernate.cache.use_query_cache">true</prop>
					<prop key="hibernate.cache.provider_class">org.hibernate.cache.EhCacheProvider</prop>
				</props>
			</property>
			<property name="jtaTransactionManager">
				<ref bean="jotm" />
			</property>
			
	</bean>

	<bean id="adminDAO" class="com.ky.ssh.dao.AdminDAO">
		<property name="sessionFactory">
			<ref bean="sessionFactory" />
		</property>
	</bean>

	<bean id="userDAO" class="com.ky.ssh.dao.UserDAO">
		<property name="sessionFactory">
			<ref bean="sessionFactory2" />
		</property>
	</bean>

	<bean id="service" class="com.ky.service.Service">
		<property name="ad" ref="adminDAO"></property>
		<property name="ud" ref="userDAO"></property>
	</bean>
	<bean id="jotm" class="org.springframework.transaction.jta.JotmFactoryBean" />
	<!-- jtatransactionmanager容器 -->
	<bean id="transactionManager"
		class="org.springframework.transaction.jta.JtaTransactionManager">
		<property name="userTransaction" ref="jotm" />
	</bean>
	<!--
	指定userTransaction属性引用JOTM本地实例  -->
	<!--

		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="sessionFactory2" /> </bean>
	-->
	<tx:advice id="txAdvice" transaction-manager="transactionManager">
		<tx:attributes>
			<tx:method name="add*" propagation="REQUIRED" />
			<tx:method name="upd*" propagation="REQUIRED" />
			<tx:method name="del*" propagation="REQUIRED" />
			<tx:method name="*" propagation="read-only" />
		</tx:attributes>
	</tx:advice>

	<aop:config>
		<aop:pointcut id="interceptorPointCuts" expression="execution(* com.ky.service.*.*(..))" />
		<aop:advisor advice-ref="txAdvice" pointcut-ref="interceptorPointCuts" />
	</aop:config>

	<bean id="login" class="com.ky.action.Login">
		<property name="service" ref="service"></property>
	</bean>


</beans>

 

 
测试：

@Test
 publicvoid Test{
  ApplicationContext ac=new ClassPathXmlApplicationContext("applicationContext.xml");
  Service s=(Service) ac.getBean("service");
  s.addUserAndAdmin("ky","123");
 }

 

可以成功插入数据至量数据库，若某一点出问题，可回滚

至此配置成功