springboot 配置多个数据源

1、在application.properties文件配置两个数据源

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#默许运用tomcat-jdbc
spring.datasource.type=org.apache.tomcat.jdbc.pool.DataSource
spring.datasource.data1.url=jdbc:mysql://127.0.0.1:3306/mysql-boot
spring.datasource.data1.username=root
spring.datasource.data1.password=123123
spring.datasource.data1.driver-class-name=com.mysql.jdbc.Driver
spring.datasource.data2.url=jdbc:mysql://127.0.0.1:3306/mysql-confswh
spring.datasource.data2.username=root
spring.datasource.data2.password=123123
spring.datasource.data2.driver-class-name=com.mysql.jdbc.Driver
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2、创立一个datasource包，新建DataSource1，DataSource2两个文件，经过注解来配置数据源

DataSource1
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packagecom.springboot.datasource;
importorg.apache.ibatis.session.SqlSessionFactory;
importorg.mybatis.spring.SqlSessionFactoryBean;
importorg.mybatis.spring.SqlSessionTemplate;
importorg.mybatis.spring.annotation.MapperScan;
importorg.springframework.beans.factory.annotation.Qualifier;
importorg.springframework.boot.autoconfigure.jdbc.DataSourceBuilder;
importorg.springframework.boot.context.properties.ConfigurationProperties;
importorg.springframework.context.annotation.Bean;
importorg.springframework.context.annotation.Configuration;
importorg.springframework.context.annotation.Primary;
importorg.springframework.jdbc.datasource.DataSourceTransactionManager;
importjavax.sql.DataSource;
@Configuration//注解到spring容器中
@MapperScan(basePackages=”com.springboot.data1.mapper”,sqlSessionFactoryRef=”data1SqlSessionFactory”)
publicclassDataSource1{
/**
*返回data1数据库的数据源
*@return
*/
@Bean(name=”data1Source”)
@Primary//主数据源
@ConfigurationProperties(prefix=”spring.datasource.data1″)
publicDataSourcedataSource(){
returnDataSourceBuilder.create().build();
}
/**
*返回data1数据库的会话工厂
*@paramds
*@return
*@throwsException
*/
@Bean(name=”data1SqlSessionFactory”)
@Primary
publicSqlSessionFactorysqlSessionFactory(@Qualifier(“data1Source”)DataSourceds)throwsException{
SqlSessionFactoryBeanbean=newSqlSessionFactoryBean();
bean.setDataSource(ds);
returnbean.getObject();
}
/**
*返回data1数据库的会话模板
*@paramsessionFactory
*@return
*@throwsException
*/
@Bean(name=”data1SqlSessionTemplate”)
@Primary
publicSqlSessionTemplatesqlSessionTemplate(@Qualifier(“data1SqlSessionFactory”)SqlSessionFactorysessionFactory)throwsException{
returnnewSqlSessionTemplate(sessionFactory);
}
/**
*返回data1数据库的事务
*@paramds
*@return
*/
@Bean(name=”data1TransactionManager”)
@Primary
publicDataSourceTransactionManagertransactionManager(@Qualifier(“data1Source”)DataSourceds){
returnnewDataSourceTransactionManager(ds);
}
}
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DataSource2：
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packagecom.springboot.datasource;
importorg.apache.ibatis.session.SqlSessionFactory;
importorg.mybatis.spring.SqlSessionFactoryBean;
importorg.mybatis.spring.SqlSessionTemplate;
importorg.mybatis.spring.annotation.MapperScan;
importorg.springframework.beans.factory.annotation.Qualifier;
importorg.springframework.boot.autoconfigure.jdbc.DataSourceBuilder;
importorg.springframework.boot.context.properties.ConfigurationProperties;
importorg.springframework.context.annotation.Bean;
importorg.springframework.context.annotation.Configuration;
importorg.springframework.jdbc.datasource.DataSourceTransactionManager;
importjavax.sql.DataSource;
@Configuration//注解到spring容器中
@MapperScan(basePackages=”com.springboot.data2.mapper”,sqlSessionFactoryRef=”data2SqlSessionFactory”)
publicclassDataSource2{
/**
*返回data2数据库的数据源
*@return
*/
@Bean(name=”data2Source”)
@ConfigurationProperties(prefix=”spring.datasource.data2″)
publicDataSourcedataSource(){
returnDataSourceBuilder.create().build();
}
/**
*返回data2数据库的会话工厂
*@paramds
*@return
*@throwsException
*/
@Bean(name=”data2SqlSessionFactory”)
publicSqlSessionFactorysqlSessionFactory(@Qualifier(“data2Source”)DataSourceds)throwsException{
SqlSessionFactoryBeanbean=newSqlSessionFactoryBean();
bean.setDataSource(ds);
returnbean.getObject();
}
/**
*返回data2数据库的会话模板
*@paramsessionFactory
*@return
*@throwsException
*/
@Bean(name=”data2SqlSessionTemplate”)
publicSqlSessionTemplatesqlSessionTemplate(@Qualifier(“data2SqlSessionFactory”)SqlSessionFactorysessionFactory)throwsException{
returnnewSqlSessionTemplate(sessionFactory);
}
/**
*返回data2数据库的事务
*@paramds
*@return
*/
@Bean(name=”data2TransactionManager”)
publicDataSourceTransactionManagertransactionManager(@Qualifier(“data2Source”)DataSourceds){
returnnewDataSourceTransactionManager(ds);
}
}
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3、测试Service&Mapper
@RequestMapping(“getTopicList”)
publicList<Map<String,Object>>getTopicList(){
List<Map<String,Object>>list1=userServiceData1.getTopicListData1();
List<Map<String,Object>>list2=userServiceData2.getTopicListData2();
returnlist1;
}