java web 下载本地文件并弹出下载框 

1 window.open("/dept/download")
jsp代码
 1 @RequestMapping(value = "/download", method = RequestMethod.GET)
 2     public void downstudents(HttpServletRequest request, HttpServletResponse response) throws IOException {
 3         String filename = request.getSession().getServletContext().getRealPath("/static/email/");
 4         String filenameZip = filename + "\\dept.xls";
 5 
 6         try {
 7             response.setContentType("application/x-execl");
 8             response.setHeader("Content-Disposition",
 9                     "attachment;filename=" + new String(("dept.xls").getBytes(), "UTF-8"));
10             // 读取文件
11             InputStream in = new FileInputStream(filenameZip);
12             ServletOutputStream outputStream = response.getOutputStream();
13             // 写文件
14             int b;
15             while ((b = in.read()) != -1) {
16                 outputStream.write(b);
17             }
18 
19             in.close();
20             outputStream.close();
21         } catch (UnsupportedEncodingException e) {
22             e.printStackTrace();
23         } catch (IOException e) {
24             e.printStackTrace();
25         }
26 
27     }
javaCode

 

posted on 2018-09-06 20:33  longlinji  阅读(2944)  评论(0)  编辑  收藏  举报