spring+mybatis多数据源的配置

解决方案：

多套sqlSessionFactory，针对不同的数据源

数据源

Xml代码  

<something-else-entirely>
    <proxool>
        <alias>peccancy</alias>
        <driver-url>jdbc:oracle:thin:@172.16.60.46:1521:orcl</driver-url>
        <driver-class>oracle.jdbc.driver.OracleDriver</driver-class>
        <driver-properties>
            <property name="user" value="oses"/>
            <property name="password" value="oses"/>
        </driver-properties>
        ...
    </proxool>
    <proxool>
        <alias>yhtepap</alias>
        <driver-url>jdbc:oracle:thin:@172.16.60.46:1521:orcl</driver-url>
        <driver-class>oracle.jdbc.driver.OracleDriver</driver-class>
        <driver-properties>
            <property name="user" value="pap"/>
            <property name="password" value="pap"/>
        </driver-properties>
        ...
    </proxool>
</something-else-entirely>

 1.方法一

Xml代码  

<bean id="dataSource_peccancy" class="org.springframework.jdbc.datasource.DriverManagerDataSource" >
    <property name="driverClassName">
        <value>org.logicalcobwebs.proxool.ProxoolDriver</value>
    </property>
    <property name="url">
        <value>proxool.peccancy</value>
    </property>
</bean>
<bean id="dataSource_pap" class="org.springframework.jdbc.datasource.DriverManagerDataSource" >
    <property name="driverClassName">
        <value>org.logicalcobwebs.proxool.ProxoolDriver</value>
    </property>
    <property name="url">
        <value>proxool.pap</value>
    </property>
</bean>

  

Xml代码  

<bean id="sqlSessionFactory_peccancy" class="org.mybatis.spring.SqlSessionFactoryBean">
    <property name="dataSource" ref="dataSource_peccancy" />
    <property name="mapperLocations">
        <list>
            <value>classpath:net/yhte/common/query/mapper/PageData_Mapper.xml</value>
            <value>classpath*:net/yhte/web/peccancy/**/mapper/*Mapper.xml</value>
        </list>
    </property>
</bean>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <property name="basePackage" value="net.yhte.web.peccancy.**.dao" />
    <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory_peccancy"></property>
</bean>
<bean id="sqlSessionFactory_pap" class="org.mybatis.spring.SqlSessionFactoryBean">
    <property name="dataSource" ref="dataSource_pap" />
    <property name="mapperLocations">
        <list>
            <value>classpath*:net/yhte/web/pap/**/mapper/*Mapper.xml</value>
            <value>classpath:net/yhte/common/query/mapper/PageData_Mapper.xml</value>
        </list>
    </property>
</bean>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <property name="basePackage" value="net.yhte.web.pap.**.dao" />
    <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory_pap"></property>
</bean>

 本方案需要根据数据源的不同对*Mapper.xml进行分包处理，便于配置，同一个包下的*Mapper.xml如果对应的数据源不同，则不方便使用通配符进行统一扫描配置，且sqlSessionFactory扫包的basePackage 也需要分包。

2.使用自定义注解来取代spring的repository设置到annotationClass中。这样每个mapper文件中注入相应的注解@PapRepository，@PeccancyRepository

<property name="annotationClass" value="org.springframework.stereotype.Repository"></property>

 改成<property name="annotationClass" value="net.xxx.PapRepository"></property>

  配置文件如下：

Xml代码  

<bean id="sqlSessionFactory_peccancy" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource_peccancy" />
        <property name="mapperLocations">
            <list>
                <value>classpath:net/yhte/common/query/mapper/PageData_Mapper.xml</value>
                <value>classpath*:net/yhte/web/**/mapper/*Mapper.xml</value>
            </list>
        </property>
    </bean>
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="annotationClass" value="net.yhte.common.service.PeccancyRepository"></property>
        <property name="basePackage" value="net.yhte.web.**.dao" />
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory_peccancy"></property>
    </bean>
    <bean id="sqlSessionFactory_pap" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource_pap" />
        <property name="mapperLocations">
            <list>
                <value>classpath:net/yhte/common/query/mapper/PageData_Mapper.xml</value>
                <value>classpath*:net/yhte/web/**/mapper/*Mapper.xml</value>
            </list>
        </property>
    </bean>
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="annotationClass" value="net.yhte.common.service.PapRepository"></property>
        <property name="basePackage" value="net.yhte.web.**.dao" />
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory_pap"></property>
    </bean>

 如上所配置使用pap的mapper文件就加上注解@PapRepository

Java代码  

public @interface PeccancyRepository {

}

public @interface PapRepository {

}

 

 

Java代码  

// 使用dataSource_pap 数据源
@PapRepository
public interface UserMapper {
    List<User> find(UserQueryBean userQueryBean);
}
// 使用dataSource_peccancy 数据源
@PeccancyRepository
public interface ParameterMapper{

    List<Parameter> find(ParameterQueryBean queryBean);
}

 

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