ssm文件下载

 

/**
     * 不兼容ie浏览器
     *
     * @param name  文件名
     * @param request
     * @return
     * @throws IOException
     */
    @RequestMapping("/download")
    public ResponseEntity download(@RequestParam String name, HttpServletRequest request) throws IOException {
        String path = request.getServletContext().getRealPath("/upload");
        String filePath = path + "/" + name;
        File file = new File(filePath);
        HttpHeaders headers = new HttpHeaders();
        headers.setContentType(MediaType.MULTIPART_FORM_DATA);
        headers.setContentDispositionFormData("attachment", name);
        return new ResponseEntity(FileUtils.readFileToByteArray(file), headers, HttpStatus.CREATED);
    }

    /**
     * 兼容ie
     * 中文下载存在错误
     *
     * @param name 文件名
     * @param request
     * @param response
     * @throws IOException
     */
    @RequestMapping("/download2")
    public void download2(@RequestParam String name, HttpServletRequest request, HttpServletResponse response) throws IOException {

        BufferedInputStream bufferedInputStream = null;
        BufferedOutputStream bufferedOutputStream = null;

        try {
            String path = request.getServletContext().getRealPath("/upload");
            File file = new File(path + "/" + name);
            //浏览器不解析而下载 兼容IE
            response.setContentType("application/x-msdownload;");
            //设置下载的文件名
            response.setHeader("Content-disposition", "attachment;filename=" + new String(name.getBytes("UTF-8"), "ISO8859-1"));
            bufferedInputStream = new BufferedInputStream(new FileInputStream(file));
            bufferedOutputStream = new BufferedOutputStream(response.getOutputStream());
            byte[] bytes = new byte[1024];
            int len;
            while (-1 != (len = bufferedInputStream.read(bytes, 0, bytes.length))) {
                bufferedOutputStream.write(bytes, 0, bytes.length);
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (bufferedInputStream != null) {
                try {
                    bufferedInputStream.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (bufferedOutputStream != null) {
                bufferedOutputStream.close();
            }
        }
    }