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javascript - AngularJS 1.6.8 : Unable to pass data from controller to view

转载 作者：行者123 更新时间：2023-12-01 02:28:27 24 4
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不知道哪里出了问题。

以下是所有相应文件的代码。它是一个非常基本的带有路由的 SPA。

index.html

    <!DOCTYPE html>
<html lang="en" ng-app="myApp">
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Bookstore</title>

    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
    <link rel="stylesheet" href="style.css">

    <script src="angular.js"></script>
    <script src="angular-route.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/angular-ui-router/1.0.3/angular-ui-router.js"></script>
</head>
<body ng-controller="mainCtrl as vm">

    <nav class="navbar navbar-light bg-light">
        <div class="container-fluid">
            <div class="navbar-header">

                <a class="navbar-brand" ui-sref="home">Bookstore</a>
            </div>

        </div> 
    </nav> 
    <div class="container">
        <div class="row">
            <div class="col-md-2">
                <ul class="menu">
                    <li class="nav-item"><a class="nav-link active" ui-sref="dashboard">Dashboard</a></li>
                    <li class="nav-item"><a class="nav-link" ui-sref="contact">Contact Us</a></li>
                    <li class="nav-item"><a class="nav-link" ui-sref="about">About Us</a></li>
                </ul>
            </div>
            <div class="col-md-10">
               <ui-view>

               </ui-view>
            </div>
        </div>
    </div>  

    <!-- jQuery first, then Popper.js, then Bootstrap JS -->
    <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>

    <script src="app.js"></script>
    <script src="about/about.component.js"></script>
    <script src="contact/contact.component.js"></script>
    <script src="dashboard/dashboard.component.js"></script>
</body>
</html>

app.js

var app = angular.module('myApp', ['ui.router']);
app.controller('mainCtrl',function(){

});

app.config(['$stateProvider', '$urlRouterProvider',function($stateProvider,$urlRouterProvider){
    $urlRouterProvider.otherwise('/');

    $stateProvider
      .state('home', {
        url: '/',
        templateUrl: 'home.html'
      })
      .state('dashboard', {
        url: '/dashboard',
        templateUrl: 'dashboard/dashboard.html'
      })
      .state('contact', {
        url: '/contact',
        templateUrl: 'contact/contact.html'
      })
      .state('about', {
        url: '/about',
       // templateUrl: 'about/about.html',
        component: 'aboutComponent'
      })
}]);

about.html

<div ngController="aboutController">
    <div class="heading text-center">
        <h1>About Us</h1>
    </div>
    <div class="text text-center">
        <p>{{$ctrl.information}}</p>
    </div>
</div>

about.component.js

    angular.module('myApp')
    .component('aboutComponent', {
    restrict: 'E',
    scope: {},    
    templateUrl:'about/about.html',
    controller: aboutController,
    // controllerAs: 'vm',
    bindings:{
      information:'='
    }

  });

  function aboutController() {
    var vm = this;
    vm.information = 'Lorem ipsum dolor sit amet consectetur adipisicing elit. Expedita fuga quas eaque ipsa praesentium asperiores! Saepe neque nemo consequuntur enim sunt est quos eaque alias quis fugit nihil, provident iusto!Lorem ipsum dolor sit amet consectetur adipisicing elit. Expedita fuga quas eaque ipsa praesentium asperiores! Saepe neque nemo consequuntur enim sunt est quos eaque alias quis fugit nihil, provident iusto!Lorem ipsum dolor sit amet consectetur adipisicing elit. Expedita fuga quas eaque ipsa praesentium asperiores! Saepe neque nemo consequuntur enim sunt est quos eaque [![enter image description here][1]][1]alias quis fugit nihil, provident iusto!Lorem ipsum dolor sit amet consectetur adipisicing elit. Expedita fuga quas eaque ipsa praesentium asperiores! Saepe neque nemo consequuntur enim sunt est quos eaque alias quis fugit nihil, provident iusto!';
  };

最佳答案

您可以使用controllerAs: 'vm'选项，然后在模板中使用

<div ng-controller="aboutController">
    <div class="heading text-center">
        <h1>About Us</h1>
    </div>
    <div class="text text-center">
        <p>{{vm.information}}</p>
    </div>
</div>

或者

将其分配给组件中的 ctrl。

var ctrl = this;
ctrl.information = 'Lorem ipsum ...';

并且

鉴于您没有将组件用作元素并传递“信息”，请删除绑定(bind)选项。

关于javascript - AngularJS 1.6.8 : Unable to pass data from controller to view，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/48517312/

24 4 0
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