加签demo

demo

java

/**
     * 计算sign签名
     *
     * @param jsonObject
     * @param genKey
     * @return
     */
    public static String calculateSign(JSONObject jsonObject, String genKey) {
        String pathvalue = json2pathValue(jsonObject);
        pathvalue = pathvalue + "&gen_key=" + genKey;
        pathvalue = pathvalue.replaceAll("\\\\r\\\\n","\\\\n").replaceAll("\\\\n","\\\\r\\\\n");
        String sign = DigestUtils.md5DigestAsHex(pathvalue.getBytes(StandardCharsets.UTF_8));
        return sign;
    }

• ```
  /**
  * JSON对象转为网址传参格式（按key的首字母从小到大排序）
  * @param jsonObject
  * @return
  */
  public static String json2pathValue(JSONObject jsonObject) {
  Map map = jsonObject.toJavaObject(Map.class);
  Set set = map.keySet();
  List keyList = new ArrayList<>(set);
  List collect = keyList.stream().sorted().collect(Collectors.toList());
  StringBuilder stringBuilder = new StringBuilder();
  for (String s : collect) {
  String value = "";
  if(CheckUtils.isObjectEmpty(map.get(s))){
  value = "";
  }else{
  value =map.get(s).toString();
  }
  stringBuilder.append(s).append("=").append(value).append("&");
  }
  stringBuilder.deleteCharAt(stringBuilder.lastIndexOf("&"));
  return stringBuilder.toString();
  }

```

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