基于 Spring + Atomikos + Mybatis的多数据源配置（含有BaseDao,BaseService）

1.spring配置文件

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:util="http://www.springframework.org/schema/util"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/util
http://www.springframework.org/schema/util/spring-util-3.1.xsd
">

    <!--使用@Autowired注解,需要注入下bean-->
    <bean class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor"/>

    <context:component-scan base-package="com.tykj.weatherservice" annotation-config="false" />

    <!--实际上，PropertyPlaceholderConfigurer起的作用就是将占位符指向的数据库配置信息放在bean中定义的工具。-->
    <bean id="propertyConfigurer"
          class="com.tykj.secondparty.context.CustomizedPropertyPlaceholderConfigurer">
        <property name="locations">
            <list>
                <value>classpath:/system.properties</value>
                <value>classpath:/jdbc.properties</value>
            </list>
        </property>
    </bean>

    <bean id="settings"
        class="org.springframework.beans.factory.config.PropertiesFactoryBean">
        <property name="locations">
            <list>
                <value>classpath:/system.properties</value>
            </list>
        </property>
        <property name="fileEncoding">
            <value>UTF-8</value>
        </property>
    </bean>  

    <!-- 多个数据源的功用配置，方便下面直接引用 -->
     <bean id="abstractXADataSource" class="com.atomikos.jdbc.AtomikosDataSourceBean" init-method="init" destroy-method="close" abstract="true">
        <property name="poolSize" value="${mysql_poolSize}" />
        <property name="minPoolSize" value="${mysql_minPoolSize}"/>
        <property name="maxPoolSize" value="${mysql_maxPoolSize}"/>
        <property name="borrowConnectionTimeout" value="${borrowConnectionTimeout}"/>
        <property name="reapTimeout" value="${mysql_reapTimeout}"/>
        <!-- 最大空闲时间 -->
        <property name="maxIdleTime" value="${mysql_maxIdleTime}"/>
        <property name="maintenanceInterval" value="${mysql_maintenanceInterval}" />
        <property name="loginTimeout" value="${mysql_loginTimeout}"/>
        <property name="logWriter" value="${mysql_logWriter}"/>
    </bean>

 <!--测试web数据库的分布式事务atomikos 的三种数据源 SimpleDataSourceBean,AtomikosDataSourceBean,AtomikosNonXADataSourceBean-->
    <!-- <bean id="dataSourceOracle" class="com.atomikos.jdbc.AtomikosDataSourceBean"
          init-method="init" destroy-method="close">
        <description>oracle xa datasource</description>
        <property name="uniqueResourceName" value="${oracle_resourceName}"/>
        <property name="xaDataSourceClassName" value="${oracle_xaDataSourceClassName}"/>
        <property name="xaProperties">
            <props>
                <prop key="user">${oracle_user}</prop>
                <prop key="password">${oracle_password}</prop>
                <prop key="URL">${oracle_url}</prop>
            </props>
        </property>
        <property name="minPoolSize" value="${oracle_poolSize}"/>
        <property name="maxPoolSize" value="${oracle_maxPoolSize}"/>
        <property name="maxIdleTime" value="${oracle_maxIdleTime}"/>
        <property name="borrowConnectionTimeout" value="${borrowConnectionTimeout}"/>
    </bean> -->

    <bean id="dataSourceXph" parent="abstractXADataSource">
        <description>mysql xph datasource</description>
        <property name="uniqueResourceName" value="${mysql_resourceName_xph}"/>
        <property name="xaDataSourceClassName" value="${mysql_xaDataSourceClassName}"/>
        <property name="xaProperties">
            <props>
                <prop key="url">${mysql_url_xph}</prop>
                <prop key="user">${mysql_user_xph}</prop>
                <prop key="password">${mysql_password_xph}</prop>
            </props>
        </property>
    </bean>

    <bean id="dataSourceQs" parent="abstractXADataSource">
        <description>mysql qs datasource</description>
        <property name="uniqueResourceName" value="${mysql_resourceName_qs}"/>
        <property name="xaDataSourceClassName" value="${mysql_xaDataSourceClassName}"/>
        <property name="xaProperties">
            <props>
                <prop key="url">${mysql_url_qs}</prop>
                <prop key="user">${mysql_user_qs}</prop>
                <prop key="password">${mysql_password_qs}</prop>
            </props>
        </property>
    </bean>

    <!--Spring让LOB数据操作变得简单易行   LOB类型后期需要的话再加入-->
<!--     <bean id="lobHandler" class="org.springframework.jdbc.support.lob.DefaultLobHandler"/> -->

    <!-- 创建SqlSessionFactory，同时指定数据源-->
    <!-- <bean id="sqlSessionFactoryOracle" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSourceOracle" />
        <property  name="configLocation"  value="classpath:com/tykj/resources/configuration.xml"/>
        <property name="mapperLocations" value="classpath*:com/tykj/tracingcloud/beans/**/*.xml"/>
    </bean> -->

    <bean id="sqlSessionFactoryXph" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSourceXph" />
        <property name="configLocation" value="classpath:com/tykj/resources/configuration.xml"/>
        <!-- <property name="mapperLocations" value="classpath*:com/tykj/weatherservice/bean/**/*.xml"/> -->
        <property name="mapperLocations">
            <array>
                <value>classpath*:com/tykj/weatherservice/bean/xphdata/xphRealData.xml</value>
            </array>
        </property>
    </bean>

    <bean id="sqlSessionFactoryQs" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSourceQs" />
        <property name="configLocation" value="classpath:com/tykj/resources/configuration.xml"/>
        <!-- <property name="mapperLocations" value="classpath*:com/tykj/weatherservice/bean/**/*.xml"/> -->
        <property name="mapperLocations">
            <array>
                <value>classpath*:com/tykj/weatherservice/bean/channel/channel.xml</value>
                <value>classpath*:com/tykj/weatherservice/bean/deviceinfo/deviceinfo.xml</value>
                <value>classpath*:com/tykj/weatherservice/bean/webthings/webthings.xml</value>
            </array>
        </property>
    </bean>

     <!-- MyBatis为不同的mapper注入sqlSessionFactory -->
    <bean id="xphRealDataDao" class="org.mybatis.spring.mapper.MapperFactoryBean">
        <property name="sqlSessionFactory" ref="sqlSessionFactoryXph" />
        <property name="mapperInterface" value="com.tykj.weatherservice.dao.xphdata.XphRealDataDao" />
    </bean>
    <bean id="channelDao" class="org.mybatis.spring.mapper.MapperFactoryBean">
        <property name="sqlSessionFactory" ref="sqlSessionFactoryQs" />
        <property name="mapperInterface" value="com.tykj.weatherservice.dao.channel.ChannelDao" />
    </bean>
    <bean id="deviceinfoDao" class="org.mybatis.spring.mapper.MapperFactoryBean">
        <property name="sqlSessionFactory" ref="sqlSessionFactoryQs" />
        <property name="mapperInterface" value="com.tykj.weatherservice.dao.deviceinfo.DeviceinfoDao" />
    </bean>
    <bean id="webThingsDao" class="org.mybatis.spring.mapper.MapperFactoryBean">
        <property name="sqlSessionFactory" ref="sqlSessionFactoryQs" />
        <property name="mapperInterface" value="com.tykj.weatherservice.dao.webthings.WebThingsDao" />
    </bean>  

    <!-- Mapper接口所在包名，Spring会自动查找其下的Mapper -->
    <!-- <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        不能跟其他bean的扫描路径重叠
        <property name="basePackage" value="com.tykj.tracingcloud.beans.*" />
        sqlSessionFactory自动注入
        <property name="sqlSessionFactory" ref="sqlSessionFactoryOracle"/>
    </bean> -->
    <!-- <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        不能跟其他bean的扫描路径重叠
        <property name="basePackage" value="com.tykj.weatherservice.dao.base.implxph" />
        sqlSessionFactory自动注入
        <property name="sqlSessionFactoryBeanName" ref="sqlSessionFactoryXph"/>
    </bean>
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        不能跟其他bean的扫描路径重叠
        <property name="basePackage" value="com.tykj.weatherservice.dao.base.implqs" />
        sqlSessionFactory自动注入
        <property name="sqlSessionFactoryBeanName" ref="sqlSessionFactoryQs"/>
    </bean> -->

    <bean id="atomikosUserTransaction" class="com.atomikos.icatch.jta.UserTransactionImp">
        <description>UserTransactionImp1</description>
        <property name="transactionTimeout">
            <value>300</value>
        </property>
    </bean>

    <bean id="atomikosTransactionManager" class="com.atomikos.icatch.jta.UserTransactionManager"
          init-method="init" destroy-method="close">
        <description>UserTransactionManager1</description>
        <property name="forceShutdown">
            <value>true</value>
        </property>
    </bean>

    <!-- spring 事务管理器 -->
    <bean id="transactionManager"
          class="org.springframework.transaction.jta.JtaTransactionManager">
        <property name="transactionManager" ref="atomikosTransactionManager"/>
        <property name="userTransaction" ref="atomikosUserTransaction" />
        <property name="allowCustomIsolationLevels" value="true"/>
    </bean>

      <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSourceXph"/>
    </bean>

    <!-- 事务的传播特性（JoinPoint） -->
    <tx:advice id="txAdvice" transaction-manager="txManager">
        <tx:attributes>
            <tx:method name="add*" propagation="REQUIRED" rollback-for="java.lang.Exception" />
            <tx:method name="modify*" propagation="REQUIRED"
                       rollback-for="java.lang.Exception"/>
            <tx:method name="delete*" propagation="REQUIRED"
                       rollback-for="java.lang.Exception"/>
            <tx:method name="update*" propagation="REQUIRED"
                       rollback-for="java.lang.Exception"/>
            <tx:method name="deal*" propagation="REQUIRED"
                       rollback-for="java.lang.Exception"/>
           <!-- SUPPORTS支持当前事务，如果当前没有事务，就以非事务方式执行。-->
            <tx:method name="*" propagation="SUPPORTS"/>
        </tx:attributes>
    </tx:advice>

    <!-- 开启注解 -->
    <context:annotation-config />
    <!-- base-package指向注解要扫描的包 -->
    <context:component-scan base-package="com.tykj.weatherservice" annotation-config="false"/> 

    <!-- 配置那些类参与事务（PointCut） -->
    <aop:config>
        <aop:pointcut expression="execution(* com.tykj.weatherservice.service.*..impl.*(..))" id="serviceMethod"/>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="serviceMethod"/>
    </aop:config>
</beans>

2.项目结构