ruoyi(若依)配置多数据源(mysql+postgresql)，rouyi(Springboot)多数据源设置

一、除了MySQL驱动，我们还需要用到postgresql的驱动，所以我们先把驱动的依赖给导入进来

<!--PostgreSql驱动包 --><dependency><groupId>org.postgresql</groupId><artifactId>postgresql</artifactId></dependency>

二，修改application-druid.yml:

# 数据源配置
spring:
    datasource:
        type:com.alibaba.druid.pool.DruidDataSource
        druid:
            # 主库数据源
            master:
                driverClassName:com.mysql.cj.jdbc.Driver
                url: jdbc:mysql://localhost:3306/i_ren_shi?useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=convertToNull&useSSL=true&serverTimezone=GMT%2B8
                username: root
                password: root
            # 从库数据源
            slave:
                # 从数据源开关/默认关闭
                enabled:true
                driverClassName:org.postgresql.Driver
                url: jdbc:postgresql://localhost:5432/easytrack
                username:123456
                password:123456

            easytrack:
                # 从数据源开关/默认关闭
                enabled:true
                driverClassName:org.postgresql.Driver
                url: jdbc:postgresql://localhost:5432/easytrack
                username:123456
                password:123456

三、新数据源的配置

（1）修改DatasourceType

packagecom.ruoyi.common.enums;/**
 * 数据源
 * 
 * @author ruoyi
 */publicenumDataSourceType{/**
     * 主库
     */
    MASTER,/**
     * 从库
     */
    SLAVE,/**
     * 新配置数据源名称
     */
    EASYTRACK

}

（2）修改DruidConfig，这里有很多细节要注意，就是大小写的问题

@Bean@ConfigurationProperties("spring.datasource.druid.easytrack")@ConditionalOnProperty(prefix ="spring.datasource.druid.easytrack", name ="enabled", havingValue ="true")publicDataSourceeasyTrackDataSource(DruidProperties druidProperties){DruidDataSource dataSource =DruidDataSourceBuilder.create().build();return druidProperties.dataSource(dataSource);}@Bean(name ="dynamicDataSource")@PrimarypublicDynamicDataSourcedataSource(DataSource masterDataSource){Map<Object,Object> targetDataSources =newHashMap<>();
        targetDataSources.put(DataSourceType.MASTER.name(), masterDataSource);setDataSource(targetDataSources,DataSourceType.SLAVE.name(),"slaveDataSource");setDataSource(targetDataSources,DataSourceType.EASYTRACK.name(),"easyTrackDataSource");returnnewDynamicDataSource(masterDataSource, targetDataSources);}

（3）使用选择数据源，会自动切换数据源

@DataSource(value =DataSourceType.EASYTRACK)