java 实现文件下载时，弹出文件保存窗口(IE9)

public static void downloadLocal(HttpServletRequest request,HttpServletResponse response,String fileName,String title,String suffix) throws FileNotFoundException {        title = UtilFunction.convert(title, "gb2312", "ISO8859_1");response.reset();//告诉浏览器输出内容为流response.setContentType("application/octet-stream");/* * attachment是以附件下载的形式，inline是以线上浏览的形式。 * 当点击“保存”的时候都可以下载， * 当点击“打开”的时候attachment是在本地机里打开， * inline是在浏览器里打开。*/response.addHeader("Content-Disposition", "inline;filename=" + title + suffix);OutputStream os = null;BufferedInputStream bis = null;try{InputStream is = new FileInputStream(fileName);bis = new BufferedInputStream(is);response.setContentLength(bis.available());byte[] buf = new byte[1024];int bytes = 0;os = response.getOutputStream();while ((bytes = bis.read(buf)) != -1){os.write(buf, 0, bytes);}} catch (Exception e){log.error(e.getMessage(), e);} finally{try{if (bis != null){bis.close();}if (os != null){os.close();}} catch (IOException e){log.error("down file error", e);}}    }