mybatis多环境配置

项目信息：

1.配置文件信息：

#db1
spring.datasource.db1.url=jdbc:mysql://127.0.0.1:3306/bg_resources?autoReconnect=true&useUnicode=true&characterEncoding=UTF-8&allowMultiQueries=true
spring.datasource.db1.username=root
spring.datasource.db1.password=123456
spring.datasource.db1.driver-class-name=com.mysql.jdbc.Driver
#db2
spring.datasource.db2.url=jdbc:mysql://127.0.0.1:3306/ssm?autoReconnect=true&useUnicode=true&characterEncoding=UTF-8&allowMultiQueries=true
spring.datasource.db2.username=root
spring.datasource.db2.password=123456
spring.datasource.db2.driver-class-name=com.mysql.jdbc.Driver

2.修改启动类（JhReportApplication）：

@SpringBootApplication(exclude = {DataSourceAutoConfiguration.class})

3.DataSourceConfig内容：

/**
    注入两个数据源信息
*/
@Configuration
public class DataSourceConfig {
    @Autowired
    Environment env;

    @Bean(name = "ds1")
    public DataSource dataSource1() {
        DruidDataSource dataSource = new DruidDataSource();

        dataSource.setUrl(env.getProperty("spring.datasource.db1.url"));
        dataSource.setUsername(env.getProperty("spring.datasource.db1.username"));
        dataSource.setPassword(env.getProperty("spring.datasource.db1.password"));
        dataSource.setDriverClassName(env.getProperty("spring.datasource.db1.driver-class-name"));
        return dataSource;
    }

    @Bean(name = "ds2")
    public DataSource dataSource2() {
        DruidDataSource dataSource = new DruidDataSource();

        dataSource.setUrl(env.getProperty("spring.datasource.db2.url"));
        dataSource.setUsername(env.getProperty("spring.datasource.db2.username"));
        dataSource.setPassword(env.getProperty("spring.datasource.db2.password"));
        dataSource.setDriverClassName(env.getProperty("spring.datasource.db2.driver-class-name"));
        return dataSource;
    }

}

4.MybatisDb1Config内容：

@Configuration
@MapperScan(basePackages = {"com.channelsoft.jh_report.dao.db1"}, sqlSessionFactoryRef = "sqlSessionFactory1")
public class MybatisDb1Config {

    @Qualifier("ds1")
    @Autowired
    DataSource dataSource;

    @Bean(name = "sqlSessionFactory1")
    public SqlSessionFactory sqlSessionFactory1() throws Exception {
        SqlSessionFactoryBean factoryBean = new SqlSessionFactoryBean();
        factoryBean.setDataSource(dataSource);
//mybatis的sql语句是写在xml里面的才需要，如果是使用注解就不需要
       // PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
        //factoryBean.setMapperLocations(resolver.getResources("classpath:mappers/db1/*.xml"));
       // factoryBean.setMapperLocations(resolver.getResources("classpath:mapper/db1/*.xml"));
        factoryBean.setTypeAliasesPackage("com.channelsoft.jh_report.po");
        return factoryBean.getObject();

    }

    @Bean
    public SqlSessionTemplate sqlSessionTemplate1() throws Exception {
        SqlSessionTemplate template = new SqlSessionTemplate(sqlSessionFactory1()); // 使用上面配置的Factory
        return template;
    }
}

5.MybatisDb2Config内容：

@Configuration
@MapperScan(basePackages = {"com.channelsoft.jh_report.dao.db2"}, sqlSessionFactoryRef = "sqlSessionFactory2")
public class MybatisDb2Config {

    @Qualifier("ds2")
    @Autowired
    DataSource dataSource;

    @Bean(name = "sqlSessionFactory2")
    public SqlSessionFactory sqlSessionFactory2() throws Exception {
        SqlSessionFactoryBean factoryBean = new SqlSessionFactoryBean();
        factoryBean.setDataSource(dataSource);
       // PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
       // factoryBean.setMapperLocations(resolver.getResources("classpath:mappers/db2/*.xml"));
       // factoryBean.setMapperLocations(resolver.getResources("classpath:mapper/db2/*.xml"));
        factoryBean.setTypeAliasesPackage("com.channelsoft.jh_report.po");
        return factoryBean.getObject();

    }

    @Bean
    public SqlSessionTemplate sqlSessionTemplate2() throws Exception {
        SqlSessionTemplate template = new SqlSessionTemplate(sqlSessionFactory2());
        return template;
    }
}