mybatis如何配置多数据源

[沉郁的鱼]

一个SMM项目想同时连接sql和oracle,网上例子好难找。。。

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context"
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:p="http://www.springframework.org/schema/p"
xmlns:util="http://www.springframework.org/schema/util" xmlns:jdbc="http://www.springframework.org/schema/jdbc"
xmlns:cache="http://www.springframework.org/schema/cache"
xsi:schemaLocation="
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd
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/jdbc
http://www.springframework.org/schema/jdbc/spring-jdbc.xsd
http://www.springframework.org/schema/cache
http://www.springframework.org/schema/cache/spring-cache.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.xsd">
<!-- 自动扫描 -->
<context:component-scan base-package="com.cn.hnust" />
<!-- 引入配置文件 -->
<bean id="propertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location" value="classpath:jdbc.properties" />
</bean>

<bean id="dataSourceSqp" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="${driver}" />
<property name="url" value="${url}" />
<property name="username" value="${username}" />
<property name="password" value="${password}" />
<!-- 初始化连接大小 -->
<!-- <property name="initialSize" value="${initialSize}"></property>
连接池最大数量
<property name="maxActive" value="${maxActive}"></property>
连接池最大空闲
<property name="maxIdle" value="${maxIdle}"></property>
连接池最小空闲
<property name="minIdle" value="${minIdle}"></property>
获取连接最大等待时间
<property name="maxWait" value="${maxWait}"></property> -->
</bean>
<bean id="dataSourceSqpOra" class="org.apache.commons.dbcp.BasicDataSource"
destroy-method="close">
<property name="driverClassName" value="${driver}" />
<property name="url" value="${url}" />
<property name="username" value="${username}" />
<property name="password" value="${password}" />

</bean>

<!-- spring和MyBatis完美整合，不需要mybatis的配置映射文件 -->
<bean id="sqlSessionFactorySqp" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSourceSqp" />
<!-- 自动扫描mapping.xml文件 -->

<property name="mapperLocations" value="classpath:com/cn/hnust/mapping/*.xml"></property>
<property name="plugins">
<array>
<bean class="com.github.pagehelper.PageInterceptor">
<property name="properties">
<!-- config params as the following -->
<value>
param1=value1
</value>
</property>
</bean>
</array>
</property>
</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.cn.hnust.dao" />
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactorySqp"></property>
</bean>

<!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSourceSqp" />
</bean>



<!-- 事务管理 通知 -->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<!-- 对insert,update,delete 开头的方法进行事务管理,只要有异常就回滚 -->
<tx:method name="insert*" propagation="REQUIRED" rollback-for="java.lang.Throwable"/>
<tx:method name="update*" propagation="REQUIRED" rollback-for="java.lang.Throwable"/>
<tx:method name="delete*" propagation="REQUIRED" rollback-for="java.lang.Throwable"/>
<!-- select,count开头的方法,开启只读,提高数据库访问性能 -->
<tx:method name="select*"/>
<tx:method name="count*"/>
<!-- 对其他方法 使用默认的事务管理 -->
<tx:method name="*"/>
</tx:attributes>
</tx:advice>

<!-- 事务 aop 配置 -->
<aop:config>
<aop:pointcut id="serviceMethods" expression="execution(* com.cn.hnust.service..*(..))"/>
<aop:advisor advice-ref="txAdvice" pointcut-ref="serviceMethods"/>
</aop:config>

<!-- 配置使Spring采用CGLIB代理 -->
<aop:aspectj-autoproxy proxy-target-class="true"/>

<!-- 启用对事务注解的支持 -->
<tx:annotation-driven transaction-manager="transactionManager"/>


</beans>

[dhweicheng]

Spring的Spring的AbstractRoutingDataSource抽象类可以重写实现多数据源问题，可以搜索相关博文， aop配置多数据源