Java 文件上传及下载

@GetMapping("/upload") public void upload(MultipartFile file) throws IOException { String path = "";//上传的路径 File file1 = new File(path); if (!file1.exists()) { //路径不存在就创建路径 file1.mkdir(); } file.transferTo(new File(file1 + "/" + file.getOriginalFilename())); } @GetMapping("/download") public void download(HttpServletResponse response) throws IOException { String path = "";//文件的下载地址 String name = "";//要下载的文件名 //设置响应头 response.reset();//设置页面不缓存 response.setCharacterEncoding("UTF-8");//字符集编码 response.setContentType("multipart/form-data");//二进制传输文件 response.setHeader("Content-Disposition", "attachment;fileName=" + URLEncoder.encode(name, "UTF-8"));//设置响应头 File file = new File(path, name); //输入流 FileInputStream inputStream = new FileInputStream(file); //输出流 ServletOutputStream outputStream = response.getOutputStream(); byte[] bytes = new byte[10240000]; int index = 0; while ((index = inputStream.read(bytes)) != -1) { outputStream.write(bytes, 0, index); outputStream.flush(); } outputStream.close(); inputStream.close(); }