js中文乱码

1.js页面代码
encodeURIComponent(fileName）

    //下载批量导入模板$("#downloadFile").on('click',function () {var fileName="派单规则批量上传模板.xlsx";//防止-中文乱码fileName = encodeURIComponent(fileName);//fileName = encodeURI(fileName)var url=commonAddress()+"/download/template?fileName="+fileName;window.location.href=url;});

2.后端控制台–获取
filename = java.net.URLEncoder.encode(filename, “UTF-8”);

// 非IE浏览器的处理：
filename = new String(filename.getBytes(“UTF-8”), “ISO-8859-1”);

private static final String FIXED_PATH = "static/excel/";private static final String USER_AGENT_MSIE = "MSIE";private static final String USER_AGENT_TRIDENT = "Trident";@RequestMapping("/template")@ResponseBodypublic void downloadTemplate(@RequestParam Map<String,String> params, HttpServletResponse response, HttpServletRequest request)throws IOException {log.debug("DownloadController{}==>downloadTemplate()");InputStream inputStream = null;OutputStream os = null;try{String path = Thread.currentThread().getContextClassLoader().getResource("").getPath()+FIXED_PATH+params.get("fileName");inputStream  = new FileInputStream(new File(path));//假如以中文名下载的话，设置下载文件名称String filename = params.get("fileName");// 针对IE或者以IE为内核的浏览器：String userAgent = request.getHeader("User-Agent");if (userAgent.contains(USER_AGENT_MSIE) || userAgent.contains(USER_AGENT_TRIDENT)) {filename = java.net.URLEncoder.encode(filename, "UTF-8");} else {// 非IE浏览器的处理：filename = new String(filename.getBytes("UTF-8"), "ISO-8859-1");}//设置文件下载头response.addHeader("Content-Disposition", String.format("attachment; filename=\"%s\"", filename));//1.设置文件ContentType类型，这样设置，会自动判断下载文件类型response.setContentType("multipart/form-data");response.setCharacterEncoding("UTF-8");os = response.getOutputStream();byte[] b = new byte[2048];int len;while((len = inputStream .read(b)) > 0){os.write(b, 0, len);}}catch (Exception e){log.error(e.getMessage());} finally {if(os != null) {try {os.close();} catch (Exception e) {log.error(e.getMessage());}}if(inputStream != null) {try {inputStream.close();} catch (Exception e) {log.error(e.getMessage());}}}}