问如何使用ExpressJs服务器和AngularJs为前端设置NodeJs应用程序的基本URL？

EN

app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true }));
app.use(expressSanitizer());
app.use(express.static(__dirname + '/webapp'));
app.engine('html',require('ejs').renderFile);
app.set('view engine', 'html');

$urlRouterProvider
        .when('','login')
        .when('/','login')
        .otherwise(function($injector, $location){
            var state= $injector.get('$state');
            state.go('error', { url: $location.path() }, { location: true });
        });

        //define states
        $stateProvider
        .state('/',{
            templateUrl: 'public/login.html',
            controller: 'login',
            authenticated:false
        })
        .state('login',{
            url: '/login',
            templateUrl: 'public/login.html',
            authenticated:false
            // controller: 'login'
            // template: '<h1> Routing to login page </h1>'
        })