javascript - 如何获取当前登录用户authservice的用户名

Question

我想获取当前登录的用户名，以便我可以显示它。但我不知道该怎么做？有任何想法吗 ？我正在使用 authservice 这是我的 Angular Controller ，我想在其中获取用户名。

myApp.controller('meetupsController', ['$scope', '$resource', function ($scope, $resource) {
  var Meetup = $resource('/api/meetups');
$scope.meetups = []

  Meetup.query(function (results) {
    $scope.meetups = results;
  });


  $scope.createMeetup = function () {
    var meetup = new Meetup();
    meetup.name = $scope.meetupName;
    meetup.$save(function (result) {
      $scope.meetups.push(result);
      $scope.meetupName = '';
    });
  }
}]);

我的主要 Angular Controller 代码 var myApp = angular.module('myApp', ['ngResource', 'ngRoute']);

myApp.config(function ($routeProvider) {
  $routeProvider
    .when('/', {
      templateUrl: 'partials/main.html',
      access: {restricted: true}
    })
    .when('/api/meetups', {
      templateUrl: 'partials/main.html',
      access: {restricted: true}
    })
    .when('/login', {
      templateUrl: 'partials/login.html',
      controller: 'loginController',
      access: {restricted: false}
    })
    .when('/prive', {
      templateUrl: 'partials/prive.html',
      controller: 'userController',
      access: {restricted: true}
    })
    .when('/logout', {
      controller: 'logoutController',
      access: {restricted: true}
    })
    .when('/register', {
      templateUrl: 'partials/register.html',
      controller: 'registerController',
      access: {restricted: false}
    })
    .when('/one', {
      template: '<h1>This is page one!</h1>',
      access: {restricted: true}
    })
    .when('/two', {
      template: '<h1>This is page two!</h1>',
      access: {restricted: false}
    })
    .otherwise({
      redirectTo: '/'
    });
});

myApp.run(function ($rootScope, $location, $route, AuthService) {
  $rootScope.$on('$routeChangeStart',
    function (event, next, current) {
      AuthService.getUserStatus()
      .then(function(){
        if (next.access.restricted && !AuthService.isLoggedIn()){
          $location.path('/login');
          $route.reload();
        }
      });
  });
});







myApp.controller('meetupsController', ['$scope', '$resource', function ($scope, $resource) {
  var Meetup = $resource('/api/meetups');
$scope.meetups = []

  Meetup.query(function (results) {
    $scope.meetups = results;
  });


  $scope.createMeetup = function () {
    var meetup = new Meetup();
    meetup.name = $scope.meetupName;
    meetup.$save(function (result) {
      $scope.meetups.push(result);
      $scope.meetupName = '';
    });
  }





}]);

我的第二个 Angular 代码:

var app = angular.module('myApp');

app.controller('loginController',
  ['$scope', '$location', 'AuthService',
  function ($scope, $location, AuthService) {

    $scope.login = function () {

      // initial values
      $scope.error = false;
      $scope.disabled = true;

      // call login from service
      AuthService.login($scope.loginForm.username, $scope.loginForm.password)
        // handle success
        .then(function () {
          $location.path('/');
          $scope.disabled = false;
          $scope.loginForm = {};
        })
        // handle error
        .catch(function () {
          $scope.error = true;
          $scope.errorMessage = "Invalid username and/or password";
          $scope.disabled = false;
          $scope.loginForm = {};
        });

    };

  $scope.posts = [];
  $scope.newPost = {created_by: '', text: '', created_at: ''};

  $scope.post = function(){
    $scope.newPost.created_at = Date.now();
    $scope.posts.push($scope.newPost);
    $scope.newPost = {created_by: '', text: '', created_at: ''};
  };
}]);

app.controller('logoutController',
  ['$scope', '$location', 'AuthService',
  function ($scope, $location, AuthService) {

    $scope.logout = function () {

      // call logout from service
      AuthService.logout()
        .then(function () {
          $location.path('/login');
        });

    };

    $scope.gotoregister = function () {




          $location.path('/register');


    };
    $scope.gotoprive = function () {




          $location.path('/prive');


    };

}]);

app.controller('registerController',
  ['$scope', '$location', 'AuthService',
  function ($scope, $location, AuthService) {

    $scope.register = function () {

      // initial values
      $scope.error = false;
      $scope.disabled = true;

      // call register from service
      AuthService.register($scope.registerForm.username, $scope.registerForm.password)
        // handle success
        .then(function () {
          $location.path('/login');
          $scope.disabled = false;
          $scope.registerForm = {};
        })
        // handle error
        .catch(function () {
          $scope.error = true;
          $scope.errorMessage = "Something went wrong!";
          $scope.disabled = false;
          $scope.registerForm = {};
        });

    };

}]);

和我的服务

angular.module('myApp').factory('AuthService',
  ['$q', '$timeout', '$http',
  function ($q, $timeout, $http) {

    // create user variable
    var user = null;

    // return available functions for use in the controllers
    return ({
      isLoggedIn: isLoggedIn,
      getUserStatus: getUserStatus,
      login: login,
      logout: logout,
      register: register
    });

    function isLoggedIn() {
      if(user) {
        return true;
      } else {
        return false;
      }
    }

    function getUserStatus() {
      return $http.get('/user/status')
      // handle success
      .success(function (data) {
        if(data.status){
          user = true;
        } else {
          user = false;
        }
      })
      // handle error
      .error(function (data) {
        user = false;
      });
    }

    function login(username, password) {

      // create a new instance of deferred
      var deferred = $q.defer();

      // send a post request to the server
      $http.post('/user/login',
        {username: username, password: password})
        // handle success
        .success(function (data, status) {
          if(status === 200 && data.status){
            user = true;
            deferred.resolve();
          } else {
            user = false;
            deferred.reject();
          }
        })
        // handle error
        .error(function (data) {
          user = false;
          deferred.reject();
        });

      // return promise object
      return deferred.promise;

    }

    function logout() {

      // create a new instance of deferred
      var deferred = $q.defer();

      // send a get request to the server
      $http.get('/user/logout')
        // handle success
        .success(function (data) {
          user = false;
          deferred.resolve();
        })
        // handle error
        .error(function (data) {
          user = false;
          deferred.reject();
        });

      // return promise object
      return deferred.promise;

    }

    function register(username, password) {

      // create a new instance of deferred
      var deferred = $q.defer();

      // send a post request to the server
      $http.post('/user/register',
        {username: username, password: password})
        // handle success
        .success(function (data, status) {
          if(status === 200 && data.status){
            deferred.resolve();
          } else {
            deferred.reject();
          }
        })
        // handle error
        .error(function (data) {
          deferred.reject();
        });

      // return promise object
      return deferred.promise;

    }

}]);

Answer 1

所以这应该可行，也许您需要进行一些小的调整，因为我不知道您的应用程序的结构到底如何，但这会起作用。

首先，您需要将 AuthService 更改为如下所示

angular.module('myApp').factory('AuthService',
  ['$q', '$timeout', '$http',
  function ($q, $timeout, $http, $cookies) {

    // create user variable
    var user = null;

    // we must create authMemberDefer var so we can get promise anywhere in app
    var authenticatedMemberDefer = $q.defer();

    // return available functions for use in the controllers
    return ({
      isLoggedIn: isLoggedIn,
      getUserStatus: getUserStatus,
      login: login,
      logout: logout,
      register: register,
      getAuthMember: getAuthMember,
      setAuthMember: setAuthMember
    });

    function isLoggedIn() {
      if(user) {
        return true;
      } else {
        return false;
      }
    }
    //this is function that we will call each time when we need auth member data
    function getAuthMember() {
        return authenticatedMemberDefer.promise;
    }
    //this is setter function to set member from coockie that we create on login
    function setAuthMember(member) {
        authenticatedMemberDefer.resolve(member);
    }

    function getUserStatus() {
      return $http.get('/user/status')
      // handle success
      .success(function (data) {
        if(data.status){
          user = true;
        } else {
          user = false;
        }
      })
      // handle error
      .error(function (data) {
        user = false;
      });
    }

    function login(username, password) {

      // create a new instance of deferred
      var deferred = $q.defer();

      // send a post request to the server
      $http.post('/user/login',
        {username: username, password: password})
        // handle success
        .success(function (data, status) {
          if(status === 200 && data.status){
            user = true;
            deferred.resolve();

            //**
            $cookies.putObject('loginSession', data);
            // here create coockie for your logged user that you get from this response, im not sure if its just "data" or data.somethingElse, check you response you should have user object there


          } else {
            user = false;
            deferred.reject();
          }
        })
        // handle error
        .error(function (data) {
          user = false;
          deferred.reject();
        });

      // return promise object
      return deferred.promise;

    }

    function logout() {

      // create a new instance of deferred
      var deferred = $q.defer();

      // send a get request to the server
      $http.get('/user/logout')
        // handle success
        .success(function (data) {
          user = false;
          deferred.resolve();
          //on log out remove coockie
          $cookies.remove('loginSession');

        })
        // handle error
        .error(function (data) {
          user = false;
          deferred.reject();
        });

      // return promise object
      return deferred.promise;

    }

    function register(username, password) {

      // create a new instance of deferred
      var deferred = $q.defer();

      // send a post request to the server
      $http.post('/user/register',
        {username: username, password: password})
        // handle success
        .success(function (data, status) {
          if(status === 200 && data.status){
            deferred.resolve();
          } else {
            deferred.reject();
          }
        })
        // handle error
        .error(function (data) {
          deferred.reject();
        });

      // return promise object
      return deferred.promise;

    }

}]);

在 authService 中进行更改后，您必须在应用程序运行时进行此操作，因此每次应用程序运行(刷新)时，它首先检查 coockie 以查看是否有事件 session (成员)，如果有，它将在我们的应用程序中设置它AuthService。

myApp.run(function($rootScope, $location, $route, AuthService, $cookies) {
    $rootScope.$on('$routeChangeStart',
        function(event, next, current) {
            if ($cookies.get('loginSession')) {
                var session = JSON.parse($cookies.get('loginSession'));
                AuthService.setAuthMember(session);
            } else {
                $location.path('/login');
            }
        });
});

只要您想要获得 auth 成员，您就必须执行此操作，首先将其包含在您的 Controller /指令 AuthService 中并执行此操作

AuthService.getAuthMember().then(function(member){
 console.log(member);
 //here your member should be and you can apply any logic or use that data where     u want
});

希望这对您有帮助，如果您发现任何困难，我很乐意提供帮助