Java后端接收MultipartFile类型文件接口问题(带参与不带参)

public interface TestService {
  String uploadFileTest(MultipartFile zipFile);
}

---------------------------------------------------------------------
@Service
public class TestServiceImpl implements TestService {

    private static final Logger logger = LoggerFactory.getLogger(TestServiceImpl.class);

    @Override
    public String uploadFileTest(MultipartFile zipFile) {
        // 文件保存路径
        String targetFilePath = "D:\\360_js";
        
        // 获取上传文件的文件名
        String fileName = zipFile.getOriginalFilename();
        
        // 真正地进行文件保存
        File targetFile = new File(targetFilePath + File.separator + fileName);

        // 以下为日志 可要可不要，如果文件保存失败，1.检查路径是否正确 2.是否已经存在该文件 3.可能需要抛出IOException
        FileOutputStream fileOutputStream = null;
        try {
            fileOutputStream = new FileOutputStream(targetFile);
            IOUtils.copy(zipFile.getInputStream(), fileOutputStream);
            // 日志
            logger.info("------>>>>>>uploaded a file successfully!<<<<<<------");
        } catch (IOException e) {
            e.printStackTrace();
            return "IO异常";
        } finally {
            try {
                fileOutputStream.close();
            } catch (IOException e) {
                logger.error("", e);
            }
        }
        return "success";
    }
}

-----------------------------------------------------------------
    @Autowired
    private TestService testService;
    
    @PostMapping("/upload")
    public String uploadFileTest(@RequestParam("uploadFile") MultipartFile zipFile) {
        return testService.uploadFileTest(zipFile);
    }

实体类 entity   FileSaveReqVO.java

    @ApiModelProperty(value = "上传的文件", required = true)
    @NotNull(message = "上传文件不能为空")
    private MultipartFile file;

    @ApiModelProperty(value = "文件名称",hidden = true)
    private String Name;

    @ApiModelProperty(value = "文件地址", hidden = true)
    private String Url;
    ---------------------------------------------------------
接口 interface 
   void save(FileSaveReqVO reqVO);


impl层
@Service
public class KettleTransFileServiceImpl implements IKettleTransFileService {
    
    // 文件保存路径
    private String path = "D:\\360_js";

    // mapper层控制文件名称，文件地址保存在数据库
    @Autowired
    private FileMapper fileMapper;

    @Override
    public void save(FileSaveReqVO reqVO) {

        try {
            // 获取上传文件名称
            String fileName = reqVO.getFile().getOriginalFilename();
           
           // 真正地进行文件保存
            File destFile = new File(kettleHomePath + File.separator + fileName);
            reqVO.getFile().transferTo(destFile);
            
            } catch (IOException e) {
            throw WinExceptionUtil.winException(SchExceptionEnum.SAVE_KETTLE_FILE_ERROR, reqVO.getName());
        }

            // 将文件名称和地址保存在reqVO 便于保存到数据库
            reqVO.setName(fileName);
            reqVO.setUrl(path+ fileName);
            
            fileMapper.save(reqVO);
    }
}

controller层

    @PostMapping("/save")
    public String save(FileSaveReqVO reqVO) {
        fileService.save(reqVO);
        return "添加成功";
    }

public void updateFile(Entity entity, MultipartFize file) {
  ......
}