文件上传问题org.springframework.web.HttpMediaTypeNotSupportedException: Content type ‘multipart/form-data；

接收表单使用对象接收时不要使用注解

file
     * @return
     * @throws Exception
     */
    @PostMapping("/filesUpload")
    public R uploadFile(FormDataReq f, @RequestParam("file") MultipartFile file, @RequestParam(name = "businessType", required = true) String businessType) {
        return R.ok("文件上传成功！", fileService.uploadPic(file, businessType));
    }