json 字典解析

/**
    * 根据字典JSON和键值获取显示名称
    *
    * @param dictJson      JSON格式的字典数据
    * @param key           键值
    * @param keyField      键字段名
    * @param labelField    标签字段名
    * @param childrenField 子节点字段名
    * @return 显示名称
    */
   private String getDictLabelByJson(String dictJson, String key, String keyField, String labelField, String childrenField) {
       if (StringUtils.isEmpty(dictJson) || StringUtils.isEmpty(key)) {
           return key;
       }
       try {
           List<Map<String, Object>> dictList = (List<Map<String, Object>>) JSONArray.parse(dictJson);
           return findLabelByKey(dictList, key, keyField, labelField, childrenField);
       } catch (Exception e) {
           log.error("解析字典JSON失败", e);
           return key;
       }
   }

   /**
    * 递归查找字典标签
    *
    * @param dictList      字典列表
    * @param key           键值
    * @param keyField      键字段名
    * @param labelField    标签字段名
    * @param childrenField 子节点字段名
    * @return 显示名称
    */
   private String findLabelByKey(List<Map<String, Object>> dictList, String key, String keyField, String labelField, String childrenField) {
       if (CollUtil.isEmpty(dictList)) {
           return key;
       }
       for (Map<String, Object> dict : dictList) {
           String dictKey = (String) dict.get(keyField);
           if (key.equals(dictKey)) {
               return (String) dict.get(labelField);
           }
           // 递归查找子节点
           if (StringUtils.isNotEmpty(childrenField)) {
               @SuppressWarnings("unchecked")
               List<Map<String, Object>> children = (List<Map<String, Object>>) dict.get(childrenField);
               if (CollUtil.isNotEmpty(children)) {
                   String childLabel = findLabelByKey(children, key, keyField, labelField, childrenField);
                   if (!childLabel.equals(key)) {
                       return childLabel;
                   }
               }
           }
       }
       return key;
   }