code: @Override
      public void destroy() {
          if (rdbConfigMonitor != null) {
              rdbConfigMonitor.destroy();
          }
  
          if (rdbSyncService != null) {
              rdbSyncService.close();
          }
  
          if (dataSource != null) {
              dataSource.close();
          }
      }
docs: 销毁方法