/*** 合同批量下载* * @return*/@RequestMapping(value = "/cloudSign/downAll.htm", method = RequestMethod.POST)public void downLoadAll(HttpServletRequest request, HttpServletResponse response) {String cloudSignContract = request.getParameter("cloudSignContractVo");List<CloudSignContractVo> list = JSON.parseArray(cloudSignContract, CloudSignContractVo.class);SimpleDateFormat sdf = new SimpleDateFormat("yyyy-mm-dd-HH:mm:ss");String dateFormat = sdf.format(new Date());String name = "";String realZipName = "";String zipName = dateFormat+"_协议" + ".zip";String agent = request.getHeader("User-Agent"); // 获得浏览器头信息realZipName = nameEncodeChanged(agent, zipName);ZipOutputStream zipos = null;DataOutputStream os = null;try {response.setContentType("multipart/form-data");   response.setCharacterEncoding("UTF-8");response.setHeader("Content-Disposition", "attachment; filename=" + realZipName);zipos = new ZipOutputStream(new BufferedOutputStream(response.getOutputStream()));zipos.setMethod(ZipOutputStream.DEFLATED);// 设置压缩方法} catch (Exception e) {e.printStackTrace();logger.error("realZipName encodeed failed error :" + e);}for (int i = 0; i < list.size(); i++) {try {URL url = new URL(list.get(i).getUrl());InputStream is = url.openStream();name = list.get(i).getMemberName() + "_" + list.get(i).getMemberId() + ".pdf";zipos.putNextEntry(new ZipEntry(name));zipos.setEncoding("GBK");os = new DataOutputStream(zipos);byte[] b = new byte[1024];int length = 0;while ((length = is.read(b)) != -1) {os.write(b, 0, length);}is.close();zipos.closeEntry();} catch (Exception e) {e.printStackTrace();logger.error("contract download failed error :" + e);}}try {os.flush();os.close();zipos.close();} catch (IOException e) {e.printStackTrace();logger.error("zipos close error :" + e);}}/*** 根据请求头类型判断浏览器类型，并对字符串选择编码* * @param agent    请求头* @param fileName 文件名称* @return 编码正确的文件名* @throws UnsupportedEncodingException*/public String nameEncodeChanged(String agent, String fileName) {String realZipName = "";try {if (agent.contains("MSIE") || agent.contains("Trident")) { // IErealZipName = URLEncoder.encode(fileName, "UTF-8");} else {realZipName = new String(fileName.getBytes("utf-8"), "ISO8859-1"); // 其他}} catch (UnsupportedEncodingException e) {e.printStackTrace();logger.error("nameEncodeChanged character error" + e);}return realZipName;}