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文件批量上传，oss使用时间戳解决同名问题以及一些sql bug

news 2025/6/28 6:59:46

1.文件批量上传

    @ApiOperation(value = "文件批量上传")@PostMapping("/multipleImageUpload")@Transactional(rollbackFor = Exception.class)public Result multipleImageUpload(@ApiParam(name = "files",value = "文件",required = true) @RequestParam("files") MultipartFile[] files) {System.out.println("上传的图片数"+files.length);List<String> imageList = new ArrayList<>();for (MultipartFile file : files) {if (!file.getContentType().startsWith("image/")) {return new Result(4000, "只允许上传图片文件");}String filename = file.getOriginalFilename();String uploadUrl = OssUtils.upload(file,filename);imageList.add(uploadUrl);}if (imageList.isEmpty()){return new Result(4001,"您未上传图片");}return new Result(2000,"图片批量上传成功",imageList);}

1.1多文件上传时使用数组 MultipartFile[ ] files

其中要加上@RequestParam("files") files 要和参数列表中的参数名称一致

这类似于springMVC架构添加web 依赖

若传入文件会把请求头改为 multipart

1.2大坑

由于swagger2.xx 版本不支持多文件上传，仅支持单文件上传，多文件上传时会报错 500

2.使用时间戳进行oss上传

 public static String upload(MultipartFile file, String path) {// 创建OSSClient实例。OSS ossClient = new OSSClientBuilder().build(endPoint, accessKeyId, secretAccessKey);try {//创建唯一图片名称 + 唯一的时间戳String timeStampPath = addTimeStampToPath(path);// 创建PutObject请求。ossClient.putObject(bucketName, timeStampPath, file.getInputStream());String url = ossUrl + "/" + timeStampPath;return url;} catch (Exception e) {e.printStackTrace();return null;} finally {if (ossClient != null) {ossClient.shutdown();}}}

才开始我企图对url 进行操作后来才发现没有啥卵用

因为主要是通过这里面的路径来连接的

2.1进行时间戳的拼接

    private static String addTimeStampToPath(String path) {String fileName = path;//获取文件拓展名String extension = "";int dotIndex = path.lastIndexOf(".");if(dotIndex > 0){extension = path.substring(dotIndex);fileName = path.substring(0,dotIndex);}//获取当前时间戳String timeStamp = new SimpleDateFormat("yyyyMMddHHmmss").format(new Date());return fileName +"_"+ timeStamp + extension;}