随记----spring多数据源的一种处理方式

该方式是利用不同数据源扫描不同的mapper配置文件和mapper接口，来达到配置多个数据源。
spring 数据源的配置

<!-- 获取jndi数据源 mysql -->
<bean id="dataSource" class="org.springframework.jndi.JndiObjectFactoryBean" primary="true">
	<property name="jndiName">
		<value>java:comp/env/jdbc/userTest</value>
	</property>
</bean>

<!--基于注解的事务管理-->  
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">  
    <property name="dataSource" ref="dataSource"/>  
</bean>
<!-- spring和MyBatis整合 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
	<property name="dataSource" ref="dataSource" />
	<property name="mapperLocations" value="classpath:mybatis/mapper/userTest/*.xml" />
</bean>
<!-- DAO接口所在包名，Spring会自动查找其下的类 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <property name="basePackage" value="com.xx.**.dao.userTest" />
    <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
</bean>

<!-- datasource2 -->
<bean id="dataSource_source2" class="org.springframework.jndi.JndiObjectFactoryBean">
	<property name="jndiName">
		<value>java:comp/env/jdbc/orderTest</value>
	</property>
</bean>
<bean id="sqlSessionFactory_source2" class="org.mybatis.spring.SqlSessionFactoryBean">
	<property name="dataSource" ref="dataSource_source2" />
	<property name="mapperLocations" value="classpath:mybatis/mapper/orderTest/*.xml" />
</bean>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
	<property name="basePackage" value="com.cdel.**.dao.orderTest" />
	<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory_source2" />
</bean>