@Configuration
public class DruidConfig
{
@Bean
@ConfigurationProperties("spring.datasource.druid.master")
public DataSource masterDataSource()
{
return DruidDataSourceBuilder.create().build();
}

@Bean
@Qualifier("userDbDataSource")
@ConfigurationProperties("spring.datasource.druid.userDb")
@ConditionalOnProperty(prefix = "spring.datasource.druid.userDb", name = "enabled", havingValue = "true")
public DataSource userDbDataSource() {
    return DruidDataSourceBuilder.create().build();
}


@Bean
@Qualifier("slaveDataSource")
@ConfigurationProperties("spring.datasource.druid.slave")
@ConditionalOnProperty(prefix = "spring.datasource.druid.slave", name = "enabled", havingValue = "true")
public DataSource slaveDataSource()
{
    return DruidDataSourceBuilder.create().build();
}

@Bean(name = "dynamicDataSource")
@Primary
public DynamicDataSource dataSource(DataSource masterDataSource,  DataSource userDbDataSource , DataSource slaveDataSource)
{
    Map<Object, Object> targetDataSources = new HashMap<>();
    targetDataSources.put(DataSourceType.MASTER.name(), masterDataSource);
    targetDataSources.put(DataSourceType.USERDB.name(), userDbDataSource);
    targetDataSources.put(DataSourceType.SLAVE.name(), slaveDataSource);
    return new DynamicDataSource(masterDataSource, targetDataSources);
}