Swagger上传MultipartFile不出文件选择框bug

 	@ApiOperation("增加一张图片")
    @PostMapping("uploadOneFile")
    @ApiOperationSupport(author = "lijinghai")
    public String uploadFile(@RequestParam(value = "file") @RequestPart MultipartFile  file) {
        //返回上传oss的url
        return ossUtils.uploadOneFile(file);
    }