Question

出现此错误“错误：[$ injector：cdep]找到循环依赖项：$ cookies＆lt; - $ cookies＆lt; - AuthService”

以下代码

'use strict';

angular.
  module('core.auth').
  factory('AuthService', [ '$http', '$rootScope', 'ConfigService', '$cookies',
    function AuthService($http, $rootScope, ConfigService, $cookies) {
      const service = {};

      service.Login = Login;
      service.SetCredentials = SetCredentials;
      service.ClearCredentials = ClearCredentials;

      return service;

      function Login(username, password, callback) {
        $http.post(ConfigService.LOGIN_API, { username: username, password: password })
           .success(function (response) {
               callback(response);
           });
      }

      function SetCredentials(username) {
        $rootScope.globals = {
          currentUser: {
            username: username
          }
        };

        $cookies.put('globals', $rootScope.globals);
      }

      function ClearCredentials() {
        $rootScope.globals = {};
        $cookies.remove('globals');
      }
    }
]);

我在登录组件中使用此服务

'use strict';

angular.
  module('login').
  component('login', {
    templateUrl: 'dist/components/login/login.template.html',
    controller: ['$location', 'AuthService', '$log',
      function LoginController($location, AuthService, $log) {

      (function initController() {
          // reset login status
          AuthService.ClearCredentials();
        }());

        this.login = () => {
          AuthService.Login(this.username, this.password, (response) => {
            if (response.success) {
              $log.log(response);
              $log.log('Login successful', true);
              AuthService.SetCredentials(this.username);
              $location.path('#!/products');
            } else {
              $log.log(response)
            }
          })
        }

      }
    ],

    controllerAs: 'vm'
});

无法理解我的代码有什么问题...如果从这里删除$ cookies，它的工作正常。也许解决方案是写自己的cookie服务？：）

Answer 1

循环依赖始终是混合关注的标志，这是一件非常糟糕的事情.AngularJS的一位作者解释了一个很好的解决方案on his awesome blog。简而言之，您可能在某处隐藏了第三个服务，这是您的代码中唯一真正需要的其他部分。

Angular $ cookies“发现循环依赖”

1 个答案: