code: private long total(String where, Object... params) {
          if (logDbProperties.isEnabled()) {
              return dbHelper.query("select count(*) from t_logger where " + where, new ScalarHandler<>(), params);
          } else {
              throw new NotEnableLogException("not enable logger");
          }
      }
docs: 按筛选条件获取记录数
  
  @param where  where条件部分
  @param params 参数
  @return 总共记录数