Angularjs ui-router。如何重定向到登录页面

I have 4 states: dashboard, dahboard.main, dashboard.minor, login. dashboard is abstract and it is a parent state for .minor and .main states. Below is my code:

我有四种状态:仪表板、大菱牌。主要,仪表板。小,登录。仪表板是抽象的，它是.minor和.main状态的父状态。下面是我的代码:

.state('dashboard', {
        url: "/dashboard",
        abstract: true,
        templateUrl: "views/dashboard.html",
        resolve: {
            auth: function ($q, authenticationSvc) {
                var userInfo = authenticationSvc.getUserInfo();
                if (userInfo) {
                    return $q.when(userInfo);
                } else {
                    return $q.reject({ authenticated: false });
                }
            }
        },
        controller: "DashboardCtrl",
        data: { pageTitle: 'Example view' }
    })
    .state('dashboard.main', {
        url: "",
        templateUrl: "views/main.html",
        controller: "DashboardCtrl",
        data: { pageTitle: 'Main view' }
    })

As you see in dashboard state I have resolve option. By this I would like to redirect user to login page if he is not authorized. For this reason I use special authenticationSvc service:

正如您在仪表板状态中看到的，我有resolve选项。如果用户没有被授权，我想将他重定向到登录页面。为此，我使用了特殊认证服务:

.factory("authenticationSvc", ["$http", "$q", "$window", function ($http, $q, $window) {
    var userInfo;

    function login(email, password) {
        var deferred = $q.defer();

        $http.post("/api/login", { email: email, password: password })
            .then(function (result) {
                if(result.data.error == 0) {
                    userInfo = {
                        accessToken: result.data.accessToken
                    };
                    $window.sessionStorage["userInfo"] = JSON.stringify(userInfo);
                    deferred.resolve(userInfo);
                }
                else {
                    deferred.reject(error);
                }
            }, function (error) {
                deferred.reject(error);
            });

        return deferred.promise;
    }
    function getUserInfo() {
        return userInfo;
    }
    return {
        login: login,
        logout: logout,
        getUserInfo: getUserInfo
    };
}]);

I check auth value in config :

我在config中检查auth值:

.run(function($rootScope, $location, $state) {
    $rootScope.$state = $state;
    $rootScope.$on("routeChangeSuccess", function(userInfo) {
        consol.log(userInfo);
    });
    $rootScope.$on("routeChangeError", function(event, current, previous, eventObj) {
        if(eventObj.authenticated === false) {
            $state.go('login');
        }
    });
});

But unfortunately when I go to my website root or dashboard state I get an empty page. What is wrong with this code? Thanks!

但不幸的是，当我访问我的网站根目录或仪表板状态时，我得到了一个空页面。这段代码有什么问题?谢谢!

3 个解决方案

#1

The point is, do not redirect if not needed === if already redirected to intended state. There is a working plunker with similar solution

关键是，如果不需要=== =，不要重定向到预定状态。有一个工作柱塞与类似的解决方案

.run(function($rootScope, $location, $state, authenticationSvc) {


    $rootScope.$on( '$stateChangeStart', function(e, toState  , toParams
                                                   , fromState, fromParams) {

        var isLogin = toState.name === "login";
        if(isLogin){
           return; // no need to redirect 
        }

        // now, redirect only not authenticated

        var userInfo = authenticationSvc.getUserInfo();

        if(userInfo.authenticated === false) {
            e.preventDefault(); // stop current execution
            $state.go('login'); // go to login
        }
    });
});

Check these for similar explanation:

检查这些类似的解释:

Angular ui router - Redirection doesn't work at all
角ui路由器-重定向根本不起作用
How can I fix 'Maximum call stack size exceeded' AngularJS
如何修复“最大调用堆栈大小超过”AngularJS

#2

Since you are using UI-Router module, you should be using $stateChangeStart, $stateChangeSuccess events.

因为您正在使用UI-Router模块，所以应该使用$stateChangeStart、$stateChangeSuccess事件。

Check this link for more: https://github.com/angular-ui/ui-router/issues/17

查看此链接获得更多信息:https://github.com/angular-ui/ui-router/issues es/17

Also there is a typo in consol.log(userInfo) in console.

在console. log(userInfo)中还有一个输入错误。

Check the console in your chrome-dev-tools. It will give idea if something else is missing.

检查您的chromebook -dev-tools中的控制台。如果缺了什么东西，它就会给你灵感。

#3

Beware that actually $stateChangeSuccess event is deprecated and no longer available in angular-ui-route package. Now, this behavior is handled by transition hooks. You could achieve your purpose using $transitions.onStart as follows:

注意，实际上$stateChangeSuccess事件已被弃用，在angular-ui-route包中不再可用。现在，这个行为由转换钩子处理。您可以使用$transition实现您的目的。onStart如下:

run.$inject = ['$transitions', 'authenticationSvc'];
function run($transitions, authenticationSvc) {

  $transitions.onStart({}, function (trans) {
    var userInfo = authenticationSvc.getUserInfo();

    var $state = trans.router.stateService;

    if(userInfo.authenticated === false) {
        $state.go('login'); // go to login
    }
  });
}

#1