我正在编写一个小型AngularJS应用程序，它具有登录视图和主视图，配置如下：
$routeProvider
.when('/main' , {templateUrl: 'partials/main.html', controller: MainController})
.when('/login', {templateUrl: 'partials/login.html', controller: LoginController})
.otherwise({redirectTo: '/login'});
我的LoginController检查用户/传递组合，并在$ rootScope上设置一个反映这一点的属性：
function LoginController($scope, $location, $rootScope) {
$scope.attemptLogin = function() {
if ( $scope.username == $scope.password ) { // test
$rootScope.loggedUser = $scope.username;
$location.path( "/main" );
} else {
$scope.loginError = "Invalid user/pass.";
}
}
一切正常，但如果我访问http://localhost/#/main，我最终会绕过登录屏幕。我想写一些类似“只要路由改变，如果$ rootScope.loggedUser为null然后重定向到/ login”
...
......等等。我能以某种方式听路线变化吗？无论如何，我会发布这个问题并继续寻找。
答案 0 :(得分：501)
经过一些文档和源代码的深入探讨后，我想我已经开始工作了。也许这会对其他人有用吗？
我在模块配置中添加了以下内容：
angular.module(...)
.config( ['$routeProvider', function($routeProvider) {...}] )
.run( function($rootScope, $location) {
// register listener to watch route changes
$rootScope.$on( "$routeChangeStart", function(event, next, current) {
if ( $rootScope.loggedUser == null ) {
// no logged user, we should be going to #login
if ( next.templateUrl != "partials/login.html" ) {
// not going to #login, we should redirect now
$location.path( "/login" );
}
}
});
})
有一点似乎很奇怪，我必须测试部分名称（login.html）因为“下一个”Route对象没有url或其他东西。也许有更好的方法？
答案 1 :(得分：92)
这可能是一个更优雅，更灵活的解决方案，具有'resolve'配置属性和'promises'，可根据数据在路由和路由规则上最终加载数据。
在路由配置和功能加载和检查数据中的'resolve'中指定一个函数，执行所有重定向。如果您需要加载数据，则返回一个承诺，如果您需要重定向 - 在此之前拒绝承诺。 所有详细信息均可在$routerProvider和$q文档页面中找到。
'use strict';
var app = angular.module('app', [])
.config(['$routeProvider', function($routeProvider) {
$routeProvider
.when('/', {
templateUrl: "login.html",
controller: LoginController
})
.when('/private', {
templateUrl: "private.html",
controller: PrivateController,
resolve: {
factory: checkRouting
}
})
.when('/private/anotherpage', {
templateUrl:"another-private.html",
controller: AnotherPriveController,
resolve: {
factory: checkRouting
}
})
.otherwise({ redirectTo: '/' });
}]);
var checkRouting= function ($q, $rootScope, $location) {
if ($rootScope.userProfile) {
return true;
} else {
var deferred = $q.defer();
$http.post("/loadUserProfile", { userToken: "blah" })
.success(function (response) {
$rootScope.userProfile = response.userProfile;
deferred.resolve(true);
})
.error(function () {
deferred.reject();
$location.path("/");
});
return deferred.promise;
}
};
对于讲俄语的人来说，有一篇关于“Вариант условного раутинга в AngularJS”的帖子。
答案 2 :(得分：62)
我一直在努力做同样的事情。在与同事合作之后，提出了另一个更简单的解决方案。我在$location.path()设置了一块手表。这就是诀窍。我刚开始学习AngularJS，发现它更清晰，更易读。
$scope.$watch(function() { return $location.path(); }, function(newValue, oldValue){
if ($scope.loggedIn == false && newValue != '/login'){
$location.path('/login');
}
});
答案 3 :(得分：37)
实现登录重定向的另一种方法是将事件和拦截器用作described here。本文介绍了一些其他优点，例如检测何时需要登录，排队请求以及在登录成功后重播它们。
答案 4 :(得分：34)
在您的身份验证服务中，在根范围上设置当前经过身份验证的用户。
// AuthService.js
// auth successful
$rootScope.user = user
// AdminController.js
.config(function ($routeProvider) {
$routeProvider.when('/admin', {
controller: 'AdminController',
auth: function (user) {
return user && user.isAdmin
}
})
})
// index.js
.run(function ($rootScope, $location) {
$rootScope.$on('$routeChangeStart', function (ev, next, curr) {
if (next.$$route) {
var user = $rootScope.user
var auth = next.$$route.auth
if (auth && !auth(user)) { $location.path('/') }
}
})
})
或者，您可以设置用户对象的权限并为每个路由分配权限，然后检查事件回调中的权限。
答案 5 :(得分：27)
这是我如何做到的，以防万一：
在配置中，我在想要向公众开放的几条路线上设置publicAccess属性（如登录或注册）：
$routeProvider
.when('/', {
templateUrl: 'views/home.html',
controller: 'HomeCtrl'
})
.when('/login', {
templateUrl: 'views/login.html',
controller: 'LoginCtrl',
publicAccess: true
})
然后在运行块中，我在$routeChangeStart事件上设置了一个监听器，该监听器重定向到'/login'，除非用户有权访问或路由可公开访问：
angular.module('myModule').run(function($rootScope, $location, user, $route) {
var routesOpenToPublic = [];
angular.forEach($route.routes, function(route, path) {
// push route onto routesOpenToPublic if it has a truthy publicAccess value
route.publicAccess && (routesOpenToPublic.push(path));
});
$rootScope.$on('$routeChangeStart', function(event, nextLoc, currentLoc) {
var closedToPublic = (-1 === routesOpenToPublic.indexOf($location.path()));
if(closedToPublic && !user.isLoggedIn()) {
$location.path('/login');
}
});
})
您显然可以将条件从isLoggedIn更改为其他任何内容...只是显示另一种方法。
答案 6 :(得分：9)
我正在使用拦截器。我创建了一个库文件，可以将其添加到index.html文件中。这样，您将对其余服务调用进行全局错误处理，而不必单独关注所有错误。我还粘贴了我的basic-auth登录库。在那里你可以看到我也检查401错误并重定向到不同的位置。请参见lib / ea-basic-auth-login.js
<强> LIB / HTTP的误差handling.js
/**
* @ngdoc overview
* @name http-error-handling
* @description
*
* Module that provides http error handling for apps.
*
* Usage:
* Hook the file in to your index.html: <script src="lib/http-error-handling.js"></script>
* Add <div class="messagesList" app-messages></div> to the index.html at the position you want to
* display the error messages.
*/
(function() {
'use strict';
angular.module('http-error-handling', [])
.config(function($provide, $httpProvider, $compileProvider) {
var elementsList = $();
var showMessage = function(content, cl, time) {
$('<div/>')
.addClass(cl)
.hide()
.fadeIn('fast')
.delay(time)
.fadeOut('fast', function() { $(this).remove(); })
.appendTo(elementsList)
.text(content);
};
$httpProvider.responseInterceptors.push(function($timeout, $q) {
return function(promise) {
return promise.then(function(successResponse) {
if (successResponse.config.method.toUpperCase() != 'GET')
showMessage('Success', 'http-success-message', 5000);
return successResponse;
}, function(errorResponse) {
switch (errorResponse.status) {
case 400:
showMessage(errorResponse.data.message, 'http-error-message', 6000);
}
}
break;
case 401:
showMessage('Wrong email or password', 'http-error-message', 6000);
break;
case 403:
showMessage('You don\'t have the right to do this', 'http-error-message', 6000);
break;
case 500:
showMessage('Server internal error: ' + errorResponse.data.message, 'http-error-message', 6000);
break;
default:
showMessage('Error ' + errorResponse.status + ': ' + errorResponse.data.message, 'http-error-message', 6000);
}
return $q.reject(errorResponse);
});
};
});
$compileProvider.directive('httpErrorMessages', function() {
return {
link: function(scope, element, attrs) {
elementsList.push($(element));
}
};
});
});
})();
<强> CSS / HTTP的误差handling.css
.http-error-message {
background-color: #fbbcb1;
border: 1px #e92d0c solid;
font-size: 12px;
font-family: arial;
padding: 10px;
width: 702px;
margin-bottom: 1px;
}
.http-error-validation-message {
background-color: #fbbcb1;
border: 1px #e92d0c solid;
font-size: 12px;
font-family: arial;
padding: 10px;
width: 702px;
margin-bottom: 1px;
}
http-success-message {
background-color: #adfa9e;
border: 1px #25ae09 solid;
font-size: 12px;
font-family: arial;
padding: 10px;
width: 702px;
margin-bottom: 1px;
}
<强>的index.html
<!doctype html>
<html lang="en" ng-app="cc">
<head>
<meta charset="utf-8">
<title>yourapp</title>
<link rel="stylesheet" href="css/http-error-handling.css"/>
</head>
<body>
<!-- Display top tab menu -->
<ul class="menu">
<li><a href="#/user">Users</a></li>
<li><a href="#/vendor">Vendors</a></li>
<li><logout-link/></li>
</ul>
<!-- Display errors -->
<div class="http-error-messages" http-error-messages></div>
<!-- Display partial pages -->
<div ng-view></div>
<!-- Include all the js files. In production use min.js should be used -->
<script src="lib/angular114/angular.js"></script>
<script src="lib/angular114/angular-resource.js"></script>
<script src="lib/http-error-handling.js"></script>
<script src="js/app.js"></script>
<script src="js/services.js"></script>
<script src="js/controllers.js"></script>
<script src="js/filters.js"></script>
<强> LIB / EA-基本-AUTH-login.js
登录时几乎可以完成相同的操作。在这里你可以得到重定向的答案（$ location.path（“/ login”））。
/**
* @ngdoc overview
* @name ea-basic-auth-login
* @description
*
* Module that provides http basic authentication for apps.
*
* Usage:
* Hook the file in to your index.html: <script src="lib/ea-basic-auth-login.js"> </script>
* Place <ea-login-form/> tag in to your html login page
* Place <ea-logout-link/> tag in to your html page where the user has to click to logout
*/
(function() {
'use strict';
angular.module('ea-basic-auth-login', ['ea-base64-login'])
.config(['$httpProvider', function ($httpProvider) {
var ea_basic_auth_login_interceptor = ['$location', '$q', function($location, $q) {
function success(response) {
return response;
}
function error(response) {
if(response.status === 401) {
$location.path('/login');
return $q.reject(response);
}
else {
return $q.reject(response);
}
}
return function(promise) {
return promise.then(success, error);
}
}];
$httpProvider.responseInterceptors.push(ea_basic_auth_login_interceptor);
}])
.controller('EALoginCtrl', ['$scope','$http','$location','EABase64Login', function($scope, $http, $location, EABase64Login) {
$scope.login = function() {
$http.defaults.headers.common['Authorization'] = 'Basic ' + EABase64Login.encode($scope.email + ':' + $scope.password);
$location.path("/user");
};
$scope.logout = function() {
$http.defaults.headers.common['Authorization'] = undefined;
$location.path("/login");
};
}])
.directive('eaLoginForm', [function() {
return {
restrict: 'E',
template: '<div id="ea_login_container" ng-controller="EALoginCtrl">' +
'<form id="ea_login_form" name="ea_login_form" novalidate>' +
'<input id="ea_login_email_field" class="ea_login_field" type="text" name="email" ng-model="email" placeholder="E-Mail"/>' +
'<br/>' +
'<input id="ea_login_password_field" class="ea_login_field" type="password" name="password" ng-model="password" placeholder="Password"/>' +
'<br/>' +
'<button class="ea_login_button" ng-click="login()">Login</button>' +
'</form>' +
'</div>',
replace: true
};
}])
.directive('eaLogoutLink', [function() {
return {
restrict: 'E',
template: '<a id="ea-logout-link" ng-controller="EALoginCtrl" ng-click="logout()">Logout</a>',
replace: true
}
}]);
angular.module('ea-base64-login', []).
factory('EABase64Login', function() {
var keyStr = 'ABCDEFGHIJKLMNOP' +
'QRSTUVWXYZabcdef' +
'ghijklmnopqrstuv' +
'wxyz0123456789+/' +
'=';
return {
encode: function (input) {
var output = "";
var chr1, chr2, chr3 = "";
var enc1, enc2, enc3, enc4 = "";
var i = 0;
do {
chr1 = input.charCodeAt(i++);
chr2 = input.charCodeAt(i++);
chr3 = input.charCodeAt(i++);
enc1 = chr1 >> 2;
enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
enc4 = chr3 & 63;
if (isNaN(chr2)) {
enc3 = enc4 = 64;
} else if (isNaN(chr3)) {
enc4 = 64;
}
output = output +
keyStr.charAt(enc1) +
keyStr.charAt(enc2) +
keyStr.charAt(enc3) +
keyStr.charAt(enc4);
chr1 = chr2 = chr3 = "";
enc1 = enc2 = enc3 = enc4 = "";
} while (i < input.length);
return output;
},
decode: function (input) {
var output = "";
var chr1, chr2, chr3 = "";
var enc1, enc2, enc3, enc4 = "";
var i = 0;
// remove all characters that are not A-Z, a-z, 0-9, +, /, or =
var base64test = /[^A-Za-z0-9\+\/\=]/g;
if (base64test.exec(input)) {
alert("There were invalid base64 characters in the input text.\n" +
"Valid base64 characters are A-Z, a-z, 0-9, '+', '/',and '='\n" +
"Expect errors in decoding.");
}
input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
do {
enc1 = keyStr.indexOf(input.charAt(i++));
enc2 = keyStr.indexOf(input.charAt(i++));
enc3 = keyStr.indexOf(input.charAt(i++));
enc4 = keyStr.indexOf(input.charAt(i++));
chr1 = (enc1 << 2) | (enc2 >> 4);
chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
chr3 = ((enc3 & 3) << 6) | enc4;
output = output + String.fromCharCode(chr1);
if (enc3 != 64) {
output = output + String.fromCharCode(chr2);
}
if (enc4 != 64) {
output = output + String.fromCharCode(chr3);
}
chr1 = chr2 = chr3 = "";
enc1 = enc2 = enc3 = enc4 = "";
} while (i < input.length);
return output;
}
};
});
})();
答案 7 :(得分：6)
在你的app.js文件中：
browserSync.stream答案 8 :(得分：4)
可以使用angular-ui-router重定向到另一个视图。为此，我们使用方法$state.go("target_view")。例如：
---- app.js -----
var app = angular.module('myApp', ['ui.router']);
app.config(function ($stateProvider, $urlRouterProvider) {
// Otherwise
$urlRouterProvider.otherwise("/");
$stateProvider
// Index will decide if redirects to Login or Dashboard view
.state("index", {
url: ""
controller: 'index_controller'
})
.state('dashboard', {
url: "/dashboard",
controller: 'dashboard_controller',
templateUrl: "views/dashboard.html"
})
.state('login', {
url: "/login",
controller: 'login_controller',
templateUrl: "views/login.html"
});
});
// Associate the $state variable with $rootScope in order to use it with any controller
app.run(function ($rootScope, $state, $stateParams) {
$rootScope.$state = $state;
$rootScope.$stateParams = $stateParams;
});
app.controller('index_controller', function ($scope, $log) {
/* Check if the user is logged prior to use the next code */
if (!isLoggedUser) {
$log.log("user not logged, redirecting to Login view");
// Redirect to Login view
$scope.$state.go("login");
} else {
// Redirect to dashboard view
$scope.$state.go("dashboard");
}
});
----- HTML -----
<!DOCTYPE html>
<html>
<head>
<title>My WebSite</title>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="description" content="MyContent">
<meta name="viewport" content="width=device-width, initial-scale=1">
<script src="js/libs/angular.min.js" type="text/javascript"></script>
<script src="js/libs/angular-ui-router.min.js" type="text/javascript"></script>
<script src="js/app.js" type="text/javascript"></script>
</head>
<body ng-app="myApp">
<div ui-view></div>
</body>
</html>
答案 9 :(得分：2)
如果您不想使用angular-ui-router，但希望通过RequireJS延迟加载控制器，那么当您将控制器用作RequireJS模块时，事件$routeChangeStart会出现几个问题（延迟加载） ）。
您无法确定在$routeChangeStart被触发之前是否会加载控制器 - 事实上它不会被加载。这意味着您无法访问next或locals等$$route路由的属性，因为它们尚未设置。
例如：
app.config(["$routeProvider", function($routeProvider) {
$routeProvider.when("/foo", {
controller: "Foo",
resolve: {
controller: ["$q", function($q) {
var deferred = $q.defer();
require(["path/to/controller/Foo"], function(Foo) {
// now controller is loaded
deferred.resolve();
});
return deferred.promise;
}]
}
});
}]);
app.run(["$rootScope", function($rootScope) {
$rootScope.$on("$routeChangeStart", function(event, next, current) {
console.log(next.$$route, next.locals); // undefined, undefined
});
}]);
这意味着您无法检查其中的访问权限。
<强>解决方案：
由于通过解决方案加载控制器，您可以对访问控制检查执行相同的操作：
app.config(["$routeProvider", function($routeProvider) {
$routeProvider.when("/foo", {
controller: "Foo",
resolve: {
controller: ["$q", function($q) {
var deferred = $q.defer();
require(["path/to/controller/Foo"], function(Foo) {
// now controller is loaded
deferred.resolve();
});
return deferred.promise;
}],
access: ["$q", function($q) {
var deferred = $q.defer();
if (/* some logic to determine access is granted */) {
deferred.resolve();
} else {
deferred.reject("You have no access rights to go there");
}
return deferred.promise;
}],
}
});
}]);
app.run(["$rootScope", function($rootScope) {
$rootScope.$on("$routeChangeError", function(event, next, current, error) {
console.log("Error: " + error); // "Error: You have no access rights to go there"
});
}]);
请注意，我使用$routeChangeStart
$routeChangeError