spring的多数据源配置(spring+ibatis + oracle环境下)

同一个应用项目中，可以调用DBLink来调用多个数据库，但一般只是配了一个数据源。

我的业务逻辑是这样的，有两个数据库，服务器端提供这两个数据库的webservice接口，前提是只做在一个java project。

OK! 那就是配置多个数据源了。搜索了一下，发现spring可以支持多个数据源。

有好几种方法，结合到我只需配置两个数据源，我选择了我认为最简单、最容易实现的方式。

下面就简单的介绍一下，我的那种方法。

即在spring的配置文件上，配置两个数据源、两个事务、两个事务拦截、两个ibatis的工厂数据源配置、两个ibatis的抽象Dao。代码如下：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    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"
    xsi:schemaLocation="
     http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
     http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd
     http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd">
    <!-- 数据源1 -->
     <bean id="dataSource1" class="org.apache.commons.dbcp.BasicDataSource">
        <property name="driverClassName">
            <value>oracle.jdbc.driver.OracleDriver</value>
        </property>
        <property name="url">
            <value>jdbc:oracle:thin:@192.168.1.2:1522:test01</value>
        </property>
        <property name="username">
            <value>user01</value>
        </property>
        <property name="password">
            <value>psw01</value>
        </property>
        <property name="maxActive">
            <value>100</value>
        </property>
        <property name="maxIdle">
            <value>8</value>
        </property>
        <property name="minIdle">
            <value>1</value>
        </property>
    </bean>
    <!-- 数据源2 -->
    <bean id="dataSource2" class="org.apache.commons.dbcp.BasicDataSource">
        <property name="driverClassName">
            <value>oracle.jdbc.driver.OracleDriver</value>
        </property>
        <property name="url">
            <value>jdbc:oracle:thin:@192.169.1.3:1552:test02</value>
        </property>
        <property name="username">
            <value>user02</value>
        </property>
        <property name="password">
            <value>psw02</value>
        </property>
        <property name="maxActive">
            <value>100</value>
        </property>
        <property name="maxIdle">
            <value>8</value>
        </property>
        <property name="minIdle">
            <value>1</value>
        </property>
    </bean>
           
    <!-- 事务1 -->
    <bean id="transactionManager1" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource2" />
    </bean>
    <!-- 事务2 -->
    <bean id="transactionManager2" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource1" />
    </bean>
           
    <!-- 事务拦截1 -->
    <bean id="transactionInterceptor1" class="org.springframework.transaction.interceptor.TransactionInterceptor">
        <property name="transactionManager" ref="transactionManager1" />
        <property name="transactionAttributes">
        <props>
            <prop key="insert*">PROPAGATION_REQUIRED</prop>
            <prop key="delete*">PROPAGATION_REQUIRED</prop>
            <prop key="update*">PROPAGATION_REQUIRED</prop>
            <prop key="do*">PROPAGATION_REQUIRED</prop>
        </props>
        </property>
    </bean>
    <!-- 事务拦截2 -->
    <bean id="transactionInterceptor2" class="org.springframework.transaction.interceptor.TransactionInterceptor">
        <property name="transactionManager" ref="transactionManager2" />
        <property name="transactionAttributes">
        <props>
            <prop key="insert*">PROPAGATION_REQUIRED</prop>
            <prop key="delete*">PROPAGATION_REQUIRED</prop>
            <prop key="update*">PROPAGATION_REQUIRED</prop>
            <prop key="do*">PROPAGATION_REQUIRED</prop>
        </props>
        </property>
    </bean>
           
    <!--  管理你连接的地方-->
    <bean id="autoProxyCreator" class="org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator">
        <property name="beanNames">
        <value>*Service</value>
        </property>
        <property name="interceptorNames">
            <list>
            <value>transactionInterceptor1</value>
            <value>transactionInterceptor2</value>
            </list>
        </property>
    </bean>
           
    <!-- ibatis的工厂数据源配置1 -->
    <bean id="sqlMapClient1" class="org.springframework.orm.ibatis.SqlMapClientFactoryBean">
        <property name="configLocation" value="classpath:config/sql-map-config.xml" /><!--这里是ibatis的sqlMap文件集合 -->
        <property name="dataSource" ref="dataSource1" />
    </bean>
           
    <!-- ibatis的工厂数据源配置2 -->
    <bean id="sqlMapClient2" class="org.springframework.orm.ibatis.SqlMapClientFactoryBean">
        <property name="configLocation" value="classpath:config/sql-map-config.xml" /><!--这里是ibatis的sqlMap文件集合 -->
        <property name="dataSource" ref="dataSource2" />
    </bean>
           
           
           
    <!-- ibatis抽象的Dao1 -->
    <bean id="baseIbatisDAO1" abstract="true">
        <property name="sqlMapClient">
            <ref local="sqlMapClient1" />
        </property>
    </bean>
           
    <!-- ibatis抽象的Dao2 -->
    <bean id="baseIbatisDAO2" abstract="true">
        <property name="sqlMapClient">
            <ref local="sqlMapClient2" />
        </property>
    </bean>
</beans>