weblux上传图片

我是接口接收图片然后上传到阿里云上，由于引入的是spring weblux，所以使用方式不同，代码如下

@PostMapping(value = "/upload", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
public JSON fileUpload(@RequestPart FilePart file)throws Exception{

    OSS ossClient = new OSSClientBuilder().build(APPConfig.ENDPOINT, APPConfig.ALI_ACCESSKEYID, APPConfig.ALI_ACCESSSECRET);
    File f = null;
    String url;
    try {
        String suffix = file.filename();
        String fileName = "images/" + file.filename();
        Path path = Files.createTempFile("tempimg", suffix.substring(1, suffix.length()));
        file.transferTo(path);
        f = path.toFile();
        ossClient.putObject(APPConfig.BUCKETNAME, fileName, new FileInputStream(f));
        Date expiration = new Date(System.currentTimeMillis() + 3600L * 1000 * 24 * 365 * 10);
        url = ossClient.generatePresignedUrl(APPConfig.BUCKETNAME, fileName, expiration).toString();
    }finally {
        f.delete();
        ossClient.shutdown();
    }
    return JSONUtils.successResposeData(url);
}