springboot mybatis druid多数据源

最近要做一个项目统计各个系统的订单情况,新项目，使用springboot mybatis druid重新开发，之前已经介绍过【推荐阅读：springboot 集成mybatis和druid】下面在主要的多数据源配置信息

下面是配置数据源的代码,
文件目录 config/Db1DruidDataSourceConfig.java

@Configuration
// 扫描 Mapper 接口并容器管理
@MapperScan(basePackages = Db1DruidDataSourceConfig.PACKAGE, sqlSessionFactoryRef = "Db1SqlSessionFactory")
public class Db1DruidDataSourceConfig {
    // 精确到 db1 目录，以便跟其他数据源隔离，@Mapper 目录
    static final String PACKAGE = "com.phpsong.bigscreen.dao.Db1";
    // 精确到 db1 目录，以便跟其他数据源隔离，mybatis xml目录
    static final String MAPPER_LOCATION = "classpath:/mapper/Db1/*.xml";

    @Value("${Db1.datasource.url}")
    private String url;

    @Value("${Db1.datasource.username}")
    private String user;

    @Value("${Db1.datasource.password}")
    private String password;

    @Value("${Db1.datasource.driverClassName}")
    private String driverClass;

    @Bean(name = "Db1DataSource")
    public DataSource Db1DataSource() {
        DruidDataSource dataSource = new DruidDataSource();
        dataSource.setDriverClassName(driverClass);
        dataSource.setUrl(url);
        dataSource.setUsername(user);
        dataSource.setPassword(password);
        return dataSource;
    }

    @Bean(name = "Db1TransactionManager")
    public DataSourceTransactionManager Db1TransactionManager() {
        return new DataSourceTransactionManager(Db1DataSource());
    }

    @Bean(name = "Db1SqlSessionFactory")
    public SqlSessionFactory Db1SqlSessionFactory(@Qualifier("Db1DataSource") DataSource Db1DataSource)
            throws Exception {
        final SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean();
        sessionFactory.setDataSource(Db1DataSource);
        sessionFactory.setMapperLocations(new PathMatchingResourcePatternResolver()
                .getResources(Db1DruidDataSourceConfig.MAPPER_LOCATION));
        return sessionFactory.getObject();
    }
}

application.properties文件配置数据里

Db1.datasource.url=jdbc:mysql://127.0.0.1:3306/phpsong?autoReconnect=true&failOverReadOnly=false&useUnicode=true&characterEncoding=utf-8&supportBigNumbers=true&allowMultiQueries=true&serverTimezone=UTC
Db1.datasource.username=root
Db1.datasource.password=123456
Db1.datasource.driverClassName=com.mysql.cj.jdbc.Driver

上面的配置是项目里已经使用了