code: protected Boolean doVerifySign(final Map<String, ?> data) {
          String actualSign = String.valueOf(data.get(WepayField.SIGN));
          Map<String, String> signingMap = filterSignParams(data);
          String expectSign = doSign(signingMap);
          return expectSign.equals(actualSign);
      }
docs: 校验参数
  @param data 待校验参数
  @return 校验成功返回true，反之false