spring+mybatis+atomikos 实现JTA事务

http://www.iteye.com/topic/1113929

 

 

最近弄一个框架，使用spring3.0.5+mybatis3.0.5，需要访问多库，要应用分布式事务JTA，这是用atomikos 3.70版本，并把配置做一下记录。

 

配置多个数据源

 

<!-- 第一个数据库 -->
    <bean id="dataSource" class="com.atomikos.jdbc.SimpleDataSourceBean"
        init-method="init" destroy-method="close">
        <property name="uniqueResourceName" value="mysql/main" />
        <property name="xaDataSourceClassName"
            value="com.mysql.jdbc.jdbc2.optional.MysqlXADataSource" />
        <property name="xaDataSourceProperties"
            value="URL=${jdbc.url.a};user=${jdbc.username.a};password=${jdbc.password.a}" />
        <property name="exclusiveConnectionMode" value="true" />
        <property name="connectionPoolSize" value="10" />
        <property name="validatingQuery">
            <value>SELECT 1</value>
        </property>
    </bean>
    <!-- 第二个数据库 -->
    <bean id="dataSourceB" class="com.atomikos.jdbc.SimpleDataSourceBean"
        init-method="init" destroy-method="close">
        <property name="uniqueResourceName" value="mysql/news" />
        <property name="xaDataSourceClassName"
            value="com.mysql.jdbc.jdbc2.optional.MysqlXADataSource" />
        <property name="xaDataSourceProperties"
            value="URL=${jdbc.url.b};user=${jdbc.username.b};password=${jdbc.password.b}" />
        <property name="exclusiveConnectionMode" value="true" />
        <property name="connectionPoolSize" value="10" />
        <property name="validatingQuery">
            <value>SELECT 1</value>
        </property>
    </bean>

 

 

配置mybatis的SessionFactory

 

 

<bean id="sqlSessionFactoryB" class="org.mybatis.spring.SqlSessionFactoryBean">
    <property name="configLocation" value="classpath:mybatis/mybatis-config-b.xml" />
    <property name="dataSource" ref="dataSourceB" />
</bean>

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    <property name="configLocation" value="classpath:mybatis/mybatis-config.xml" />
    <property name="dataSource" ref="dataSource" />
</bean>

 这里使用的是SessionFactory，不是org.springframework.orm.ibatis.SqlMapClientFactoryBean，在mybatis3中用SqlMapClientFactoryBean汇报com.ibatis.common.xml.NodeletException 异常。

 

configLocation 对应的mybatis配置，跟平时配置一样。

 

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    <typeAliases>
        <typeAlias alias="User"  type="com.lantii.domain.User"/>
    </typeAliases>
    <mappers>
        <mapper resource="com/lantii/dao/UserMapper.xml" />
    </mappers>
</configuration>

 事务这块用spring管理atomikos

 

<bean id="atomikosTransactionManager" class="com.atomikos.icatch.jta.UserTransactionManager"
        init-method="init" destroy-method="close">
        <property name="forceShutdown">
            <value>true</value>
        </property>
    </bean>

    <bean id="atomikosUserTransaction" class="com.atomikos.icatch.jta.UserTransactionImp">
        <property name="transactionTimeout" value="300" />
    </bean>

    <bean id="springTransactionManager"
        class="org.springframework.transaction.jta.JtaTransactionManager">
        <property name="transactionManager">
            <ref bean="atomikosTransactionManager" />
        </property>
        <property name="userTransaction">
            <ref bean="atomikosUserTransaction" />
        </property>
    </bean>

    <aop:aspectj-autoproxy />

    <aop:config  proxy-target-class="true">
        <aop:advisor pointcut="execution(* *com.lantii.service..*(..))"
            advice-ref="txAdvice" />
    </aop:config>

    <tx:advice id="txAdvice" transaction-manager="springTransactionManager">
        <tx:attributes>
            <tx:method name="get*"  propagation="REQUIRED"  read-only="true" />
            <tx:method name="find*"  propagation="REQUIRED"  read-only="true" />
            <tx:method name="has*"  propagation="REQUIRED"  read-only="true" />
            <tx:method name="locate*"  propagation="REQUIRED"  read-only="true" />
            <tx:method name="*"  propagation="REQUIRED" rollback-for="Exception"  />
        </tx:attributes>
    </tx:advice>

 

Mapper的管理及注入

 

<bean id="userMapper" class="org.mybatis.spring.mapper.MapperFactoryBean">
        <property name="sqlSessionFactory" ref="sqlSessionFactory" />
        <property name="mapperInterface" value="com.lantii.dao.UserMapper" />
    </bean>

    <bean id="roleMapper" class="org.mybatis.spring.mapper.MapperFactoryBean">
        <property name="sqlSessionFactory" ref="sqlSessionFactoryB" />
        <property name="mapperInterface" value="com.lantii.dao.RoleMapper" />
    </bean>

    <bean id="userService" class="com.lantii.service.UserServiceImpl">
        <property name="userMapper" ref="userMapper" />
        <property name="roleMapper" ref="roleMapper" />
    </bean>

 

atomikos的配置jta.properties，该文件放在应用classpath下面

 

com.atomikos.icatch.service=com.atomikos.icatch.standalone.UserTransactionServiceFactory
com.atomikos.icatch.console_file_name = tm.out
com.atomikos.icatch.log_base_name = tmlog
com.atomikos.icatch.tm_unique_name = com.atomikos.spring.jdbc.tm
com.atomikos.icatch.console_log_level=WARN

 

这几基本配置完毕，需要jar包

atomikos-util.jar

transactions.jar

transactions-jta.jar

transactions-jdbc-deprecated.jar

mybatis.jar

mybatis-spring.jar

cglib.2.2.2.jar

spring的jar包

 

在Service中，调用事务的方法不能try。。。catch事务的方法，否者不能回滚

如下带面就会出现不会滚问题

 

try{
                userMapper.addUser(user);
                roleMapper.addRole(role);
            }catch(Exception){

            }