腾讯云 cos 上传文件 后 0kb？怎么解决?

@RequestMapping(value = "/tengxun", method = RequestMethod.POST)
    @ApiOperation(value = "从腾讯云上,上传视频")
    @ResponseBody
    public void Upload(@RequestParam(value = "file") MultipartFile file, HttpSession session) {

        String oldFileName = file.getOriginalFilename();
        System.out.println("老的本地地址"+oldFileName);
        String eName = oldFileName.substring(oldFileName.lastIndexOf("."));
//        String newFileName = UUID.randomUUID() + eName;

//        System.out.println("新的文件地址"+newFileName);
        Calendar cal = Calendar.getInstance();
        int year = cal.get(Calendar.YEAR);
        int month = cal.get(Calendar.MONTH);
        int day = cal.get(Calendar.DATE);



        // 简单文件上传, 最大支持 5 GB, 适用于小文件上传, 建议 20 M 以下的文件使用该接口
        // 大文件上传请参照 API 文档高级 API 上传
//        File localFile = null;
//        localFile = File.createTempFile("temp", null);
//        file.transferTo(localFile);
//        // 指定要上传到 COS 上的路径
        System.out.println("Prefix前缀"+cosConfigProperties);
//        String key = "/" + cosConfigProperties.getPrefix() + "/" + year + "/" + month + "/" + day + "/" + newFileName;
        String key = "/" + cosConfigProperties.getPrefix() + "/" + year + "/" + month + "/" + day + "/" + oldFileName;
        System.out.println("key"+cosConfigProperties.getSecretkey());
        //        String key = "aaa/bbb.txt";
//        PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, key, localFile);
        System.out.println("secretKey"+cosConfigProperties.getSecretkey());
        System.out.println("secreteId"+cosConfigProperties.getSecretid());
        COSCredentials cred = new BasicCOSCredentials(cosConfigProperties.getSecretid(),cosConfigProperties.getSecretkey());
        System.out.println("地区"+cosConfigProperties.getRegion());
        ClientConfig clientConfig = new ClientConfig(new Region(cosConfigProperties.getRegion()));
        COSClient cosclient = new COSClient(cred, clientConfig);
//        String bucketName = "mybucket-1251668577";
        ExecutorService threadPool = Executors.newFixedThreadPool(32);
        TransferManager transferManager = new TransferManager(cosclient, threadPool);
        File localFile = null;

        try {
            localFile = File.createTempFile(cosConfigProperties.getPrefix(), null);
            PutObjectRequest putObjectRequest = new PutObjectRequest(cosConfigProperties.getBucketname(), key, localFile);
            long startTime = System.currentTimeMillis();
            Upload upload = transferManager.upload(putObjectRequest);
            showTransferProgress(upload);
            UploadResult uploadResult = upload.waitForUploadResult();
            long endTime = System.currentTimeMillis();
            System.out.println("used time: " + (endTime - startTime) / 1000L);
            //https://uminsi-1305874324.cos.ap-nanjing.myqcloud.com
            // /uminsi/2021/5/15/8de89f89-0faf-4b58-8020-f33ccb910004.avi
            System.out.println(uploadResult.getETag());
            URL url=cosclient.generatePresignedUrl( cosConfigProperties.getBucketname()+ "-" + cosConfigProperties.getAppid(), key, new Date(new Date().getTime() + 5 * 60 * 10000));
            System.out.println("地址：  "+url.getPath());
        } catch (CosServiceException var15) {
            var15.printStackTrace();
        } catch (CosClientException var16) {
            var16.printStackTrace();
        } catch (InterruptedException var17) {
            var17.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

        transferManager.shutdownNow();
        cosclient.shutdown();
    }