code: private String pathToKey(String path) {
          if (path.startsWith(ValueConsts.DOLLAR_SIGN)) {
              path = path.substring(1);
          }
          if (!path.startsWith(ValueConsts.DOT_SIGN)) {
              path = ValueConsts.DOT_SIGN + path;
          }
          if (!path.endsWith(ValueConsts.DOT_SIGN)) {
              path += ValueConsts.DOT_SIGN;
          }
          return path;
      }
docs: 将JSONPath的路径简单地转换为JsonParser支持的key
  
  @param path 路径
  
  @return key