docs: public static String formatDate(Date argDate, String argFormat) throws Exception {
          if (argDate == null) {
              throw new Exception("参数[日期]不能为空!");
          }
          if (argFormat == null || argFormat.length() == 0) {
              argFormat = Y_M_D;
          }
          SimpleDateFormat sdfFrom = new SimpleDateFormat(argFormat);
          return sdfFrom.format(argDate).toString();
      }