利用AbstractRoutingDataSource实现动态数据源切换（Spring+Ibatis)

转载：http://exceptioneye.iteye.com/blog/1698090

Spring+Ibatis 与 Spring+Hibernate的区别在于Ibatis和Hibernate的配置不同，下面来看下Ibatis的配置

Xml代码


<jee:jndi-lookup id="ds0" jndi-name="jdbc/ds0"/>

<jee:jndi-lookup id="ds1" jndi-name="jdbc/ds1"/>

<jee:jndi-lookup id="ds2" jndi-name="jdbc/ds2"/>

<bean id="dataSource" class="com.xxx.xxx.util.DynamicDataSource">

<property name="targetDataSources">

<map key-type="java.lang.String">

<entry key="1" value-ref="ds1"/>

<entry key="2" value-ref="ds2"/>

</map>

</property>

<property name="defaultTargetDataSource" ref="ds0"/>

</bean>

<!-- SqlMap setup for iBATIS Database Layer -->

<bean id="sqlMapClient" class="org.springframework.orm.ibatis.SqlMapClientFactoryBean">

<property name="dataSource" ref="dataSource"/>

<property name="configLocation" value="classpath:com/xxx/xxx/dao/sqlmap/sql-map-config.xml"/>

</bean>

sql-map-config.xml 如下：

Xml代码


<?xml version="1.0" encoding="UTF-8" standalone="no"?>

<!DOCTYPE sqlMapConfig PUBLIC "-//iBATIS.com//DTD SQL Map Config 2.0//EN"

"http://www.ibatis.com/dtd/sql-map-config-2.dtd">

<sqlMapConfig>

<sqlMap resource="com/xxx/xxx/dao/sqlmap/Object.xml"/>

</sqlMapConfig>

核心是DynamicDataSource 与 上下文DynamicDataSourceHolder为一线程安全的ThreadLocal，都和上一篇文章的中对应的类相同。