AngularJS - UI 路由器 - 无法使用解析为我的控制器提供数据 [英] AngularJS - UI Router - Unable to use resolve to provide my controller with data

问题描述

我正在尝试将一个已加载数据的解析对象注入到我的控制器中，但我收到一个 Unknown Provider 错误:

<块引用>

未知提供者:configServiceProvider <- configService

这是我的代码:

状态提供者

$stateProvider.state('索引', {摘要:真实，网址:/索引"，模板网址: "#",解决: {配置服务:函数(){返回 {"helloText": "欢迎来到测试面板"};}}})

控制器

function MainCtrl($scope, configService) {$scope.config = configService;};angular.module('dot', ['ui.router']).config(配置).controller('MainCtrl', MainCtrl)

片段

function config($stateProvider, $urlRouterProvider) {$urlRouterProvider.otherwise("#");$stateProvider.state('索引', {摘要:真实，网址:/索引"，模板网址: "#",解决: {配置服务:功能(){返回 {"helloText": "欢迎来到测试面板"};}}})};函数 MainCtrl($scope, configService) {$scope.config = configService;};(功能() {angular.module('点', ['ui.router',//路由]).config(配置).run(function($rootScope, $state) {$rootScope.$state = $state;}).controller('MainCtrl', MainCtrl)})();

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script><script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script><script src="https://cdnjs.cloudflare.com/ajax/libs/angular-ui-router/0.2.13/angular-ui-router.min.js"></script><div ng-app="点"><div ng-controller="MainCtrl as main">

就像我的解析对象是在我的控制器加载后定义的......我是 angularJS 的新手，我觉得我肯定错过了一些非常明显的东西.

谢谢.

解决方案

ng-controller 和 UI-Router 状态 resolve 不兼容.这就是为什么您的另一个世界"'MainCtrl' 无法注入 UI-Router 中定义的解析/服务.

但是有一个简单的方法，就是把它转换成状态:

//全新的 root state，提供 root (index.html) 的东西//不影响 url 或状态名称.state('root', {摘要:真实，template: '<div ui-view=""></div>',//子状态的目标解决: {configService: function () {//为层次结构中的任何状态做好准备返回 {"helloText": "欢迎来到测试面板"};}},//全新的一行，带有MainCtrl"，现在是 UI-Router 的一部分控制器:'MainCtrl'，})

原来的root状态'index'现在将被放置在一个真实的、但抽象的、不影响状态的url - 'root'

//调整状态.state('index', {//将被注入父模板父母:'根'摘要:真实，网址:/索引"，模板网址:...，//不需要解析，已经在 root 中完成//解决: { }})

调整后的 index.html

<div ui-view="></div>//这里会注入根状态，用'MainCtrl'//<div ng-controller="MainCtrl as main">//
//
//

也许还可以检查 - ui-router 中带有左栏的布局的嵌套状态或视图?

I am trying to inject a resolve object with loaded data into my controller but I get an Unknown Provider error :

Unknown provider: configServiceProvider <- configService

Here is my code:

StateProvider

$stateProvider
    .state('index', {
        abstract: true,
        url: "/index",
        templateUrl: "#",
        resolve: {                
            configService: function () {
                return {
                    "helloText": "Welcome in Test Panel"
                };
            }
        }
    })

Controller

function MainCtrl($scope, configService) {
    $scope.config = configService;
};

angular.module('dot', ['ui.router'])
    .config(config)
    .controller('MainCtrl', MainCtrl)

Snippet

function config($stateProvider, $urlRouterProvider) {
  $urlRouterProvider.otherwise("#");

  $stateProvider
    .state('index', {
      abstract: true,
      url: "/index",
      templateUrl: "#",
      resolve: {
        configService: function() {
          return {
            "helloText": "Welcome in Test Panel"
          };
        }
      }
    })
};

function MainCtrl($scope, configService) {
  $scope.config = configService;
};

(function() {
  angular.module('dot', [
      'ui.router', // Routing
    ])
    .config(config)
    .run(function($rootScope, $state) {
      $rootScope.$state = $state;
    })
    .controller('MainCtrl', MainCtrl)
})();

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular-ui-router/0.2.13/angular-ui-router.min.js"></script>
<div ng-app="dot">
  <div ng-controller="MainCtrl as main">
    <div ui-view>
    </div>
  </div>
</div>

It's like my resolve object is defined after my controller has loaded... I'm new to angularJS and I feel like I am definitely missing something very obvious.

Thanks.

解决方案

The ng-controller and UI-Router state resolve are incompatible. That's why your "another-world" 'MainCtrl' cannot be injected with a resolve/service defined in UI-Router.

But there is a simple way, just convert it into state:

// brand new root state, providing root (index.html) stuff
// not effecting url or state names
.state('root', {
    abstract: true,
    template: '<div ui-view=""></div>', // a target for child state
    resolve: {                
        configService: function () {    // ready for any state in hierarchy
            return {
                "helloText": "Welcome in Test Panel"
            };
        }
    },
    // brand new line, with 'MainCtrl', which is part of UI-Router now
    controller: 'MainCtrl',
})

The original root state 'index' will now be placed inside of a real, but abstract, url not effecting state - 'root'

// adjusted state
.state('index', {    // will be injected into parent template
    parent: 'root'
    abstract: true,
    url: "/index",
    templateUrl: ...,
    // resolve not needed, already done in root
    //resolve: { }
})

Adjusted index.html

<div ng-app="dot">
  <div ui-view="></div> // here will be injected root state, with 'MainCtrl'
  //<div ng-controller="MainCtrl as main">
  //  <div ui-view>
  //  </div>
  //</div>

</div>

Maybe also check - Nested states or views for layout with leftbar in ui-router?

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