@GetMapping("/readInGridFS")
    public void readInGridFS(String faceId,
                                        HttpServletRequest request,
                                        HttpServletResponse response)
            throws Exception;

    @GetMapping("/readFace64InGridFS")
    public GraceJSONResult readFace64InGridFS(String faceId,
                             HttpServletRequest request,
                             HttpServletResponse response)
            throws Exception;

里面多个参数的，是不是就没办法用@FeignClient(value = MyServiceList.SERVICE_FILES), 注入使用，