<dependency>
    <groupId>org.mybatis.spring.boot</groupId>
    <artifactId>mybatis-spring-boot-starter</artifactId>
    <version>1.3.1</version>
</dependency>

first.datasource.url=jdbc:mysql://localhost/first
first.datasource.username=dbuser1
first.datasource.password=dbpass1
first.datasource.driver-class-name=com.mysql.jdbc.Driver
first.datasource.type=com.alibaba.druid.pool.DruidDataSource//我用的是Druid，也可以不加用默认的

second.datasource.url=jdbc:mysql://localhost/second
second.datasource.username=dbuser2
second.datasource.password=dbpass2
second.datasource.driver-class-name=com.mysql.jdbc.Driver
second.datasource.type=com.alibaba.druid.pool.DruidDataSource
 

@Configuration
@MapperScan(basePackages = {"com.user.server.dao"}, 
　　sqlSessionTemplateRef = "userSqlSessionTemplate")
public class UserMybatisConfig {
    
　　 @Bean(name = "userDataSource")
    @Primary //必须加此注解，不然报错，下一个类则不需要添加
    @ConfigurationProperties(prefix = "first.datasource") // prefix值必须是application.properteis中对应属性的前缀
    public DataSource userDataSource() {
        return DataSourceBuilder.create().build();
    }
    
　　 @Bean
    public SqlSessionFactory userSqlSessionFactory(@Qualifier("userDataSource") 
　　　　DataSource dataSource) throws Exception {
        SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
        bean.setDataSource(dataSource); 
        //添加XML目录
        ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
        try {
            bean.setMapperLocations(resolver.getResources("classpath*:com/user/server/dao/mapping/*.xml"));
            return bean.getObject();
        } catch (Exception e) {
            e.printStackTrace();
            throw new RuntimeException(e);
        }
    }
    
    @Bean
    public SqlSessionTemplate userSqlSessionTemplate(@Qualifier("userSqlSessionFactory") 
　　　　　　SqlSessionFactory sqlSessionFactory) throws Exception {
        SqlSessionTemplate template = new SqlSessionTemplate(sqlSessionFactory); // 使用上面配置的Factory
        return template;
    }
}
 

@Configuration
@MapperScan(basePackages = {"com.airmi.server.dao"}, sqlSessionTemplateRef = "autoTestSqlSessionTemplate")
public class AutoTestMybatisConfig {

    @Bean
    @ConfigurationProperties(prefix = "autotest.datasource") 
    public DataSource autoTestDataSource() {
        return DataSourceBuilder.create().build();
    }
    
　　@Bean
    public SqlSessionTemplate autoTestSqlSessionTemplate(@Qualifier("autoTestSqlSessionFactory") 
　　　　  SqlSessionFactory sqlSessionFactory) throws Exception {
        SqlSessionTemplate template = new SqlSessionTemplate(sqlSessionFactory);
        return template;
    }

    @Bean
    public SqlSessionFactory autoTestSqlSessionFactory(@Qualifier("autoTestDataSource") DataSource dataSource) throws Exception {
        SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
        bean.setDataSource(dataSource); 

        //添加XML目录
        ResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
        try {
            bean.setMapperLocations(resolver.getResources("classpath*:com/airmi/server/dao/mapping/*.xml"));
            return bean.getObject();
        } catch (Exception e) {
            e.printStackTrace();
            throw new RuntimeException(e);
        }
    }
}