public ActionForward downloadxsxz(ActionMapping mapping, ActionForm form,HttpServletRequest request, HttpServletResponse response){/*** 获得待导出文件路径和自定义下载文件名*/String filepath = request.getParameter("filepath");//英文名。docString _expfname = request.getParameter("expfname");//中文名String houzhui = request.getParameter("houzhui");//英文名  。doc  .img_expfname = ExportAction.decodeBase64(_expfname,"UTF-8");/*** 文件名为空则直接跳出执行*/if (filepath == null || "".equals(filepath.trim()))return null;/*** 格式化文件名*/filepath = "e:/test/";/*** 取得路径配置   判断是那种类型* XsxzBysPicPath* XsxzBysDocPath*/String _folder = "";if(   "doc".equals(houzhui)){_folder = SISConfigFactory.getIetConfig().get(XsxzBysDocPath);}else if("img".equals(houzhui)){_folder = SISConfigFactory.getIetConfig().get(XsxzBysPicPath);}File _fld = new File(_folder);if (!_fld.exists())_fld.mkdir();File file = new File(_folder + filepath);/*** 当没有配置自定义下载的文件名时，取硬盘文件名*/if (_expfname == null || "".equals(_expfname.trim()))_expfname = file.getName();try{/*** 输出文件*/FileInputStream in = new FileInputStream(file);response.setContentType("application/x-msdownload");response.setContentLength(in.available());response.setHeader("Content-Disposition", "attachment;" + "filename="+ java.net.URLEncoder.encode( _expfname, "UTF-8").replaceAll("\\+", " "));OutputStream out = response.getOutputStream();byte[] bb = new byte[1024];int a = -1;while ((a = in.read(bb)) != -1){out.write(bb, 0, a);}out.close();in.close();/*** 输出结束后，删除硬盘上文件*/
//            if (org.apache.commons.lang.StringUtils.isBlank(_deleteflag) && file.exists())
//                file.delete();
        }catch (Exception e){e.printStackTrace();}return null;}