问在spring多部分图像上传api中获取不好的请求

EN

@RequestMapping(value = "/uploadQuestionImg", method = RequestMethod.POST)
    public ResponseEntity<FileMetadata> commonFileUpload(@RequestParam("file") MultipartFile file) {
        FileMetadata fileInfo = null;
        HttpStatus statusCode = HttpStatus.BAD_REQUEST;
        if (!file.isEmpty()) {
            try {
                FileInfoService reqFile = createFileInfo(file, "");
                fileInfo = (FileMetadata) operations.store(file.getInputStream(), reqFile);
                statusCode = HttpStatus.OK;
            } catch (Exception e) {
                logger.warn("Exception occured", e);
                statusCode = HttpStatus.INTERNAL_SERVER_ERROR;
            }
        } else {
            logger.warn("Invalid request");
        }
        return new ResponseEntity<FileMetadata>(fileInfo, statusCode);
    }