提供相关JAVA上传附件代码

[kuhnpeng]

可上传图片,视频及其他文件,支付多个上传。
FileController.java

@PostMapping("/uploadFile")
    public R uploadFile(HttpServletRequest request){
        UploadFileResponse uploadFileResponse = null;
        // 将当前上下文初始化给 CommonsMutipartResolver （多部分解析器）
        CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver(
                request.getSession().getServletContext());
        // 检查form中是否有enctype="multipart/form-data"
        if (multipartResolver.isMultipart(request)) {
            // 将request变成多部分request
            MultipartHttpServletRequest multiRequest = (MultipartHttpServletRequest) request;
            // 获取multiRequest 中所有的文件名
            Iterator iter = multiRequest.getFileNames();

            while (iter.hasNext()) {
                // 一次遍历所有文件
                MultipartFile file = multiRequest.getFile(iter.next()
                        .toString());
                //传递参数值
//                String str = multiRequest.getParameter("str");
//                System.out.println("str:" + str);
                if (Objects.nonNull(file)) {
                    uploadFileResponse = fileService.storeSingleFile(file);
                }

            }

        }

        return R.OK().setData(uploadFileResponse);
    }

FileService.java

 * 存储文件到系统
     *
     * @param file 文件
     * @return 文件名
     */
    public UploadFileResponse storeSingleFile(MultipartFile file) {
        String extension = FilenameUtils.getExtension(file.getOriginalFilename());
        String fileName = FilenameUtils.getName(file.getOriginalFilename());

        if(fileName.contains("..")) {
            throw new FileException("Sorry! Filename contains invalid path sequence " + fileName);
        }
        try {
            Path targetLocation = this.fileStorageLocation.resolve(fileName);
            Files.copy(file.getInputStream(), targetLocation, StandardCopyOption.REPLACE_EXISTING);
            return new UploadFileResponse(file.getName(),fileName,extension,file.getSize());
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }