Web开发AngularPost导出显示乱码

    $http({

        url: "",

        method: 'POST',

        timeout: 60000,

        headers: {'Content-Type': 'application/x-www-form-urlencoded;charset=utf8'},

        transformRequest: function(obj) {

            var str = [];

            for(var p in obj)

                str.push(encodeURIComponent(p) + "=" + encodeURIComponent(obj[p]));

            return str.join("&");

        },

        data:{}

    }).success(function (data) {

        var blob = new Blob([data], {type: "application/vnd.ms-excel;charset=utf-8"}),

            Temp = document.createElement("a");

   

        Temp.href = window.URL.createObjectURL(blob);

        Temp.download = "XXX.xlsx";

        angular.element('body').append(Temp);

        Temp.click();

    });

@RequestMapping(value = "/downloadExcelTemplate.do")

    public void downloadExcelTemplate(HttpServletRequest request, HttpServletResponse response) {

        OutputStream os = null;

        try {

            XSSFWorkbook book = new XSSFWorkbook();

            XSSFSheet sheet = book.createSheet("XXX");

            XSSFRow rowTitle = sheet.createRow(0);

           

            String fileName = "XXX"+"."+Constant.XLSX;

            os = response.getOutputStream();

            response.setCharacterEncoding(Constant.UTF);

            response.setContentType("application/vnd.ms-excel");

            response.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(fileName, Constant.UTF));

            book.write(os);

            os.flush();

        } catch (Exception e) {

            e.printStackTrace();

            logger.error(e.getMessage());

        } finally {

            try {

                os.close();

            } catch (IOException e) {

                // TODO Auto-generated catch block

                e.printStackTrace();

            }

        }

    }