spring+mybatis 多数据库配置

这几天需要在ssm项目中配置多一个数据库，就去网上找多数据源的例子，发现都没有成功就自己试了下自己写的

原理：

创建两个数据源，两个seesionFactory，两个事务管理器，然后两个事务管理器分别配置aop，扫描不同的package（网上看到的都是使用注解方式，这里使用aop方式）

1.环境：

Mybatis + springmvc +spring + druid + log4j

如果没使用druid 的话将将数据源的bean 修改回org.apache.commons.dbcp.BasicDataSource 或者 pool之类的

2.jar包:

mysql-connector-java-5.1.10-bin.jar

ojdbc14_11g.jar

sqljdbc4.jar

分别是 mysql oracle sql server 数据库的驱动包

云盘地址：http://pan.baidu.com/s/1qXrPza8

3.配置文件

mvc-context.xml

<?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:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd ">
<!-- 开启注解 -->
<context:component-scan base-package="cn.firstflag.crm.*" />
<mvc:annotation-driven />

</beans>

root-context.xml oracle数据库的数据源

<?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:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation="
 http://www.springframework.org/schema/beans  http://www.springframework.org/schema/beans/spring-beans-3.0.xsd  http://www.springframework.org/schema/tx  http://www.springframework.org/schema/tx/spring-tx-3.0.xsd  http://www.springframework.org/schema/aop  http://www.springframework.org/schema/aop/spring-aop-3.0.xsd  http://www.springframework.org/schema/context  http://www.springframework.org/schema/context/spring-context-2.5.xsd 
">

<!-- 加载db.properties -->

<bean id="configBean" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">

<property name="location"><value>/WEB-INF/config/db.properties</value></property>

</bean>

<!-- 配置DataSource数据源 -->

<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"

destroy-method="close">

<property name="driverClassName" value="${mysql.driverClassName}" />

<property name="url" value="${mysql.url}" />

<property name="username" value="${mysql.username}" />

<property name="password" value="${mysql.password}" />

<property name="maxActive" value="${mysql.maxActive}" />

<property name="maxIdle" value="${mysql.maxIdle}" />

<property name="maxWait" value="${mysql.maxWait}" />

<property name="defaultAutoCommit" value="${mysql.defaultAutoCommit}" />

<property name="removeAbandoned" value="${mysql.removeAbandoned}" />

<property name="removeAbandonedTimeout" value="${mysql.removeAbandonedTimeout}" />

</bean>

<!-- 创建SqlSessionFactory，同时指定数据源 -->

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">

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

<property name="configLocation" value="/WEB-INF/config/local-config/mybatis-config.xml"></property>

</bean>

<!-- 扫描dao -->

<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">

<property name="basePackage" value="cn.xxxx.crm.dao"></property>

<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>

</bean>

<!-- ================================事务相关控制=================================================    -->

<bean name="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

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

</bean>

<!-- 注解方式配置事物 -->

<!-- <tx:annotation-driven transaction-manager="transactionManager" /> -->

<!-- 拦截器方式配置事物 -->

<tx:advice id="transactionAdvice" transaction-manager="transactionManager">

<tx:attributes>

<tx:method name="add*" propagation="REQUIRED" />

<tx:method name="append*" propagation="REQUIRED" />

<tx:method name="insert*" propagation="REQUIRED" />

<tx:method name="save*" propagation="REQUIRED" />

<tx:method name="update*" propagation="REQUIRED" />

<tx:method name="modify*" propagation="REQUIRED" />

<tx:method name="edit*" propagation="REQUIRED" />

<tx:method name="delete*" propagation="REQUIRED" />

<tx:method name="remove*" propagation="REQUIRED" />

<tx:method name="repair" propagation="REQUIRED" />

<tx:method name="delAndRepair" propagation="REQUIRED" />

<tx:method name="get*" propagation="SUPPORTS" />

<tx:method name="find*" propagation="SUPPORTS" />

<tx:method name="load*" propagation="SUPPORTS" />

<tx:method name="search*" propagation="SUPPORTS" />

<tx:method name="datagrid*" propagation="SUPPORTS" />

<tx:method name="*" propagation="SUPPORTS" />

</tx:attributes>

</tx:advice>

<!-- 设置只拦截oracle数据库管理的service包 -->

<aop:config>

<aop:pointcut id="localServiceTran" expression="execution(* cn.firstflag.crm.service.*.*(..))"/>

<aop:advisor pointcut-ref="localServiceTran" advice-ref="transactionAdvice" />

</aop:config>

</beans>

root-context.xml oracle数据库的数据源

<?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:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation="
 http://www.springframework.org/schema/beans  http://www.springframework.org/schema/beans/spring-beans-3.0.xsd  http://www.springframework.org/schema/tx  http://www.springframework.org/schema/tx/spring-tx-3.0.xsd  http://www.springframework.org/schema/aop  http://www.springframework.org/schema/aop/spring-aop-3.0.xsd  http://www.springframework.org/schema/context  http://www.springframework.org/schema/context/spring-context-2.5.xsd 
">

<!-- 加载db.properties -->

<bean id="configBean" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">

<property name="location"><value>/WEB-INF/config/db.properties</value></property>

</bean>

<!-- 配置DataSource数据源 -->

<bean id="dataSource_oa" class="com.alibaba.druid.pool.DruidDataSource"

init-method="init" destroy-method="close">

<property name="driverClassName" value="${oa.driverClassName}" />

<property name="url" value="${oa.url}" />

<property name="username" value="${oa.username}" />

<property name="password" value="${oa.password}" />

<property name="maxActive" value="${oa.maxActive}" />

<property name="maxIdle" value="${oa.maxIdle}" />

<property name="maxWait" value="${oa.maxWait}" />

<property name="defaultAutoCommit" value="${oa.defaultAutoCommit}" />

<property name="removeAbandoned" value="${oa.removeAbandoned}" />

<property name="removeAbandonedTimeout" value="${oa.removeAbandonedTimeout}" />

</bean>

<!-- 创建SqlSessionFactory，同时指定数据源 -->

<bean id="sqlSessionFactory_oa" class="org.mybatis.spring.SqlSessionFactoryBean">

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

<property name="configLocation" value="/WEB-INF/config/oa-config/mybatis-config-oa.xml"></property>

</bean>

<!-- 扫描dao -->

<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">

<property name="basePackage" value="cn.firstflag.crm.oa.dao"></property>

<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory_oa"/>

</bean>

<!-- ================================事务相关控制=================================================    -->

<bean name="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">

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

</bean>

<!-- 注解方式配置事物 -->

<!-- <tx:annotation-driven transaction-manager="transactionManager" /> -->

<!-- 拦截器方式配置事物 -->

<tx:advice id="transactionAdvice_oa" transaction-manager="transactionManager">

<tx:attributes>

<tx:method name="add*" propagation="REQUIRED" />

<tx:method name="append*" propagation="REQUIRED" />

<tx:method name="insert*" propagation="REQUIRED" />

<tx:method name="save*" propagation="REQUIRED" />

<tx:method name="update*" propagation="REQUIRED" />

<tx:method name="modify*" propagation="REQUIRED" />

<tx:method name="edit*" propagation="REQUIRED" />

<tx:method name="delete*" propagation="REQUIRED" />

<tx:method name="remove*" propagation="REQUIRED" />

<tx:method name="repair" propagation="REQUIRED" />

<tx:method name="delAndRepair" propagation="REQUIRED" />

<tx:method name="get*" propagation="SUPPORTS" />

<tx:method name="find*" propagation="SUPPORTS" />

<tx:method name="load*" propagation="SUPPORTS" />

<tx:method name="search*" propagation="SUPPORTS" />

<tx:method name="datagrid*" propagation="SUPPORTS" />

<tx:method name="*" propagation="SUPPORTS" />

</tx:attributes>

</tx:advice>

<!-- 设置只拦截sqlserver数据库管理的service包 -->

<aop:config>

<aop:pointcut id="localServiceTran_oa" expression="execution(* cn.xxxx.crm.oa.service.*.*(..))"/>

<aop:advisor pointcut-ref="localServiceTran_oa" advice-ref="transactionAdvice_oa" />

</aop:config>

</beans>

db.properties

local.environment=oracle

mysql.driverClassName=oracle.jdbc.driver.OracleDriver

mysql.url=jdbc\:oracle\:thin\:@10.0.1.35\:1521\:orcl

mysql.password=qifeng2015

mysql.username=crm

mysql.maxActive=5

mysql.maxIdle=3

mysql.maxWait=1000

mysql.defaultAutoCommit=true

mysql.removeAbandoned=true

mysql.removeAbandonedTimeout=60

oa.environment=mssql

oa.driverClassName=com.microsoft.sqlserver.jdbc.SQLServerDriver

oa.url=jdbc:sqlserver://10.0.21.229:1433;DatabaseName=v3x

oa.username=sa

oa.password=1

oa.maxActive=5

oa.maxIdle=3

oa.maxWait=1000

oa.defaultAutoCommit=true

oa.removeAbandoned=true

oa.removeAbandonedTimeout=60

5.其他问题

有个要注意的是sql server的url 是 jdbc:sqlserver://ip:port;DatabaseName=xxx 这种格式,而不是jdbc:sqlserver://ip:port;DatabaseName=xxx

还有driverClassName 为com.microsoft.sqlserver.jdbc.SQLServerDriver，而不是com.microsoft.jdbc.sqlserver.SQLServerDriver

显示classnotfound的话请使用附件的sqlserver驱动包