code: public static final boolean verifyFormat(String idNumber) {
          if (StringUtils.isBlank(idNumber)) {
              return false;
          }
          idNumber = idNumber.trim();
          if (!checkIdNumberRegex(idNumber)) {
              return false;
          }
          if (!checkIdNumberArea(idNumber.substring(0, 6))) {
              return false;
          }
          idNumber = convertFifteenToEighteen(idNumber);
          if (!checkBirthday(idNumber.substring(6, 14))) {
              return false;
          }
          if (!checkIdNumberVerifyCode(idNumber)) {
              return false;
          }
          return true;
      }
docs: 身份证格式校验
  @param idNumber
  @return