angular 分页无刷新，浏览器后退前进

gistfile1.txt

function pageGetServingListNew() {
            $window.history.pushState({"currentPage": vm.currentPage}, '我的服务', $location.absUrl());
            console.log( $window.history.state, " $window.history.state;");
            getServingListNew();
        }

        $window.onpopstate = function () {
            // 获得存储在该历史记录点的currentPage对象
            var currentPage = $window.history.state;
            console.log(currentPage, "history json");

            if (currentPage == null) {
                vm.currentPage = 1;
            } else {
                vm.currentPage = currentPage.currentPage;
            }
            getServingListNew();

        };