$rootScope$on事件未启动

Question

我正试图在用户登录后启动一个函数。我试图将广播封装在计时器中，因为我看到一些人建议使用它，但它似乎不起作用。有些人遇到了控制器尚未初始化的问题，但我在app.run中有$on，所以应该已经发生了。

app.run(['$rootScope', '$http', '$cookies', '$cookieStore', function ($rootScope, $http, $cookies, $cookieStore) {
$rootScope.logout = function () {
    $http.post('API' + '/api/Account/Logout')
        .success(function (data, status, headers, config) {
            $http.defaults.headers.common.Authorization = null;
            $http.defaults.headers.common.RefreshToken = null;
            $cookieStore.remove('_Token');
            $cookieStore.remove('_RefreshToken');
            $rootScope.username = '';
            $rootScope.loggedIn = false;
            window.location = '#/signin';
        });
}
$rootScope.$on('loggedIn', function (event) {
    if ($http.defaults.headers.common.RefreshToken != null) {
        var params = "grant_type=refresh_token&refresh_token=" + $http.defaults.headers.common.RefreshToken;
        $http({
            url: 'http://localhost:52644/Token',
            method: "POST",
            headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
            data: params
        })
        .success(function (data, status, headers, config) {
            $http.defaults.headers.common.Authorization = "Bearer " + data.access_token;
            $http.defaults.headers.common.RefreshToken = data.refresh_token;
            $cookieStore.put('_Token', data.access_token);
            $cookieStore.put('_RefreshToken', data.refresh_token);
            $http.get('http://localhost:52644/api/Account/GetUserInfo')
                .success(function (data, status, headers, config) {
                    if (data != "null") {
                        $rootScope.userEmail = data.replace(/["']{1}/gi, "");//Remove any quotes from the username before pushing it out.
                        $rootScope.userFirstName = data.FirstName;
                        $rootScope.loggedIn = true;
                    }
                    else
                        $rootScope.loggedIn = false;
                });

        })
        .error(function (data, status, headers, config) {
            $rootScope.loggedIn = false;
        });
    }
});

}])；

app.controller('signInCtrl', ['$scope', '$rootScope', '$http', '$cookies', '$cookieStore', '$location', '$routeParams', '$uibModalInstance', '$timeout' ,function ($scope, $rootScope, $http, $cookies, $cookieStore, $location, $routeParams, $uibModalInstance, $timeout) {
$scope.message = $routeParams.message;
$scope.signIn = function () {
    $scope.showMessage = false;
    var params = "grant_type=password&username=" + $scope.username + "&password=" + $scope.password;
    $http({
        url: 'http://localhost:52644/token',
        method: "POST",
        headers: {
            'Content-Type': 'application/x-www-form-urlencoded'
        },
        data: params
    })
    //$http.post('http://localhost:52644/token', params, {
    //    headers: {
    //        'Content-Type': 'application/x-www-form-urlencoded'
    //    }
    .success(function (data, status,
        s, config) {
        $http.defaults.headers.common.Authorization = "Bearer " + data.access_token;
        $http.defaults.headers.common.RefreshToken = data.refresh_token;
        $cookieStore.put('_Token', data.access_token);
        $rootScope.$broadcast('loggedIn');
        $timeout(function () {
            $rootScope.$broadcast('loggedIn');
        }, 100);
        $uibModalInstance.close();
    })
    .error(function (data, status, headers, config) {
        $scope.message = data.error_description.replace(/["']{1}/gi, "");
        $scope.showMessage = true;
    });
}

}])；

Answer 1

您不能广播$rootScope事件处理程序。你最多只能发射$

$rootScope.$emit('loggedIn');

根据文件

$emit(name, args);通过作用域向上分派事件名称层次结构通知注册的CCD_ 2侦听器。

事件生命周期从调用$emit的作用域开始。所有侦听此作用域上的name事件的侦听器都会收到通知。然后，事件向上遍历到根作用域沿途呼叫所有注册的侦听器。活动将停止如果某个侦听器取消它，则进行传播。