spring+mybatis多數(shù)據(jù)源的配置

解決方案：

多套sqlSessionFactory，針對不同的數(shù)據(jù)源

數(shù)據(jù)源

Xml代碼  

1. <something-else-entirely>  

2.     <proxool>  

3.         <alias>peccancy</alias>  

4.         <driver-url>jdbc:oracle:thin:@172.16.60.46:1521:orcl</driver-url>  

5.         <driver-class>oracle.jdbc.driver.OracleDriver</driver-class>  

6.         <driver-properties>  

7.             <property name="user" value="oses"/>  

8.             <property name="password" value="oses"/>  

9.         </driver-properties>  

10.         ...  

11.     </proxool>  

12.     <proxool>  

13.         <alias>yhtepap</alias>  

14.         <driver-url>jdbc:oracle:thin:@172.16.60.46:1521:orcl</driver-url>  

15.         <driver-class>oracle.jdbc.driver.OracleDriver</driver-class>  

16.         <driver-properties>  

17.             <property name="user" value="pap"/>  

18.             <property name="password" value="pap"/>  

19.         </driver-properties>  

20.         ...  

21.     </proxool>  

22. </something-else-entirely>  

 1.方法一

Xml代碼  

1. <bean id="dataSource_peccancy" class="org.springframework.jdbc.datasource.DriverManagerDataSource" >    

2.     <property name="driverClassName">    

3.         <value>org.logicalcobwebs.proxool.ProxoolDriver</value>    

4.     </property>    

5.     <property name="url">    

6.         <value>proxool.peccancy</value>    

7.     </property>    

8. </bean>    

9. <bean id="dataSource_pap" class="org.springframework.jdbc.datasource.DriverManagerDataSource" >    

10.     <property name="driverClassName">    

11.         <value>org.logicalcobwebs.proxool.ProxoolDriver</value>    

12.     </property>    

13.     <property name="url">    

14.         <value>proxool.pap</value>    

15.     </property>    

16. </bean>   

Xml代碼  

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

2.     <property name="dataSource" ref="dataSource_peccancy" />  

3.     <property name="mapperLocations">  

4.         <list>  

5.             <value>classpath:net/yhte/common/query/mapper/PageData_Mapper.xml</value>  

6.             <value>classpath*:net/yhte/web/peccancy/**/mapper/*Mapper.xml</value>  

7.         </list>  

8.     </property>  

9. </bean>  

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

11.     <property name="basePackage" value="net.yhte.web.peccancy.**.dao" />  

12.     <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory_peccancy"></property>  

13. </bean>  

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

15.     <property name="dataSource" ref="dataSource_pap" />  

16.     <property name="mapperLocations">  

17.         <list>  

18.             <value>classpath*:net/yhte/web/pap/**/mapper/*Mapper.xml</value>  

19.             <value>classpath:net/yhte/common/query/mapper/PageData_Mapper.xml</value>  

20.         </list>  

21.     </property>  

22. </bean>  

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

24.     <property name="basePackage" value="net.yhte.web.pap.**.dao" />  

25.     <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory_pap"></property>  

26. </bean>  

 本方案需要根據(jù)數(shù)據(jù)源的不同對*Mapper.xml進行分包處理，便于配置，同一個包下的*Mapper.xml如果對應(yīng)的數(shù)據(jù)源不同，則不方便使用通配符進行統(tǒng)一掃描配置，且sqlSessionFactory掃包的basePackage 也需要分包。

2.使用自定義注解來取代spring的repository設(shè)置到annotationClass中。這樣每個mapper文件中注入相應(yīng)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代碼  

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

2.         <property name="dataSource" ref="dataSource_peccancy" />  

3.         <property name="mapperLocations">  

4.             <list>  

5.                 <value>classpath:net/yhte/common/query/mapper/PageData_Mapper.xml</value>  

6.                 <value>classpath*:net/yhte/web/**/mapper/*Mapper.xml</value>  

7.             </list>  

8.         </property>  

9.     </bean>  

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

11.         <property name="annotationClass" value="net.yhte.common.service.PeccancyRepository"></property>  

12.         <property name="basePackage" value="net.yhte.web.**.dao" />  

13.         <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory_peccancy"></property>  

14.     </bean>  

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

16.         <property name="dataSource" ref="dataSource_pap" />  

17.         <property name="mapperLocations">  

18.             <list>  

19.                 <value>classpath:net/yhte/common/query/mapper/PageData_Mapper.xml</value>  

20.                 <value>classpath*:net/yhte/web/**/mapper/*Mapper.xml</value>  

21.             </list>  

22.         </property>  

23.     </bean>  

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

25.         <property name="annotationClass" value="net.yhte.common.service.PapRepository"></property>  

26.         <property name="basePackage" value="net.yhte.web.**.dao" />  

27.         <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory_pap"></property>  

28.     </bean>  

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

Java代碼  

1. public @interface PeccancyRepository {  

2.   

3. }  

4.   

5. public @interface PapRepository {  

6.   

7. }  

Java代碼  

1. // 使用dataSource_pap 數(shù)據(jù)源    

2. @PapRepository  

3. public interface UserMapper {  

4.     List<User> find(UserQueryBean userQueryBean);  

5. }  

6. // 使用dataSource_peccancy 數(shù)據(jù)源    

7. @PeccancyRepository  

8. public interface ParameterMapper{  

9.   

10.     List<Parameter> find(ParameterQueryBean queryBean);  

11. }  

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