本文共 959 字，大约阅读时间需要 3 分钟。

@Autowired    protected HttpServletResponse response;        try {        //获取输入流             InputStream is = fisOssFileHandleService.downloadByFileId(resourceId);             PriFileDo priFileDo = fileBo.selectByResourceId(resourceId);             //设置请求头，通用文件类型multipart/form-data             response.reset();             response.setContentType("multipart/form-data;charset=UTF-8");             //文件名             String filename = java.net.URLEncoder.encode(priFileDo.getFileName(), "UTF-8");             response.setHeader("Content-Disposition","attachment;filename="+filename);             //获取输出流             ServletOutputStream sout = response.getOutputStream();               int ch;             //循环读取流，读完为止             while ((ch = is.read()) != -1) {                    sout.write(ch);;                }             //输出文件             sout.flush();             sout.close();        } catch (Exception e) {            e.printStackTrace();        }

转载地址：http://zmzoi.baihongyu.com/