// //下载文件,并处理文件名乱码 public void downloadFile(HttpServletRequest request,HttpServletResponse response){ String path = request.getSession().getServletContext().getRealPath("/upload/文档1.doc"); // path是根据日志路径和文件名拼接出来的 File file = new File(path); //获取日志文件名称 String filename = file.getName(); try { //判断是否是IE11 Boolean flag= request.getHeader("User-Agent").indexOf("like Gecko")>0; //IE11 User-Agent字符串:Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko //IE6~IE10版本的User-Agent字符串:Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.0; Trident/6.0) if (request.getHeader("User-Agent").toLowerCase().indexOf("msie") >0||flag){ filename = URLEncoder.encode(filename, "UTF-8");//IE浏览器 }else { //先去掉文件名称中的空格,然后转换编码格式为utf-8,保证不出现乱码, //这个文件名称用于浏览器的下载框中自动显示的文件名 filename = new String(filename.replaceAll(" ", "").getBytes("UTF-8"), "ISO8859-1"); //firefox浏览器 //firefox浏览器User-Agent字符串: //Mozilla/5.0 (Windows NT 6.1; WOW64; rv:36.0) Gecko/20100101 Firefox/36.0 } InputStream fis = new BufferedInputStream(new FileInputStream(path)); byte[] buffer; buffer = new byte[fis.available()]; fis.read(buffer); fis.close(); response.reset(); response.addHeader("Content-Disposition", "attachment;filename=" +filename); response.addHeader("Content-Length", "" + file.length()); OutputStream os = response.getOutputStream(); response.setContentType("application/octet-stream"); os.write(buffer);// 输出文件 os.flush(); os.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } }
时间: 2024-11-07 05:31:29