uEditorConfig:
          fileName: ueditor-conf-dev.json 
              
              
        /**
         * ueditor配置文件名称
         */
        @Value("${uEditorConfig.fileName}")
        private String configFileName;          

  ueditor.config.js 中的：
  // 服务器统一请求接口路径
  serverUrl: URL + "ueditor-config"
  就是 UEditorConfig.java 中的 config 方法的请求映射：
  /**
   * 读取配置
   * @param request
   * @param response
   */
  @RequestMapping(value="/ueditor-config")
  public void config(HttpServletRequest request, HttpServletResponse response) {
      response.setContentType("application/json");
      String rootPath = request.getSession().getServletContext().getRealPath("/");
      try {
          String exec = new ActionEnter(request, rootPath,configFileName).exec();
          PrintWriter writer = response.getWriter();
          writer.write(exec);
          writer.flush();
          writer.close();
      } catch (IOException e) {
          e.printStackTrace();
      }
  }