如何使用AngularJS在标头中显示localStorage数据答案

【问题标题】：How to show localStorage data in header using AngularJS如何使用AngularJS在标头中显示localStorage数据
【发布时间】：2016-12-28 21:22:18
【问题描述】：

您好，我在 MEAN Stack 工作，我想将本地存储值显示到

主题的标题。我使用的是 Metronic 主题。

实际上本地存储数据可以在视图文件中访问。一切正常但是

我想查看未显示的标头中的 LOcalStorage 数据。

我就是这样用的。

{{adminData.email}}

标题中没有显示管理员的电子邮件。

但是当我在

的内容文件中使用相同的 {{adminData.email}}

显示管理员的邮件。我不知道是什么问题。

这里是 index.ejs 文件。

<!DOCTYPE html>
<style type="text/css">
 .page-spinner-bar {
    display: none;
}</style>
<html lang="en" ng-app="myApp">
<!--<![endif]-->
<!-- BEGIN HEAD -->
<head>
<title>Ditro Infotech App</title>

<meta charset="utf-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta content="width=device-width, initial-scale=1" name="viewport"/>
<meta content="" name="description"/>
<meta content="" name="author"/>

<!-- BEGIN GLOBAL MANDATORY STYLES -->
<link href="http://fonts.googleapis.com/css?family=Open+Sans:400,300,600,700&subset=all" rel="stylesheet" type="text/css"/>
<link href="../../assets/global/plugins/font-awesome/css/font-awesome.min.css" rel="stylesheet" type="text/css"/>
<link href="../../assets/global/plugins/simple-line-icons/simple-line-icons.min.css" rel="stylesheet" type="text/css"/>
<link href="../../assets/global/plugins/bootstrap/css/bootstrap.min.css" rel="stylesheet" type="text/css"/>
<link href="../../assets/global/plugins/uniform/css/uniform.default.css" rel="stylesheet" type="text/css"/>
<link href="../../assets/admin/pages/css/login.css" rel="stylesheet" type="text/css"/>
<link href="../../css/style.css" rel="stylesheet" type="text/css"/>


<!-- BEGIN DYMANICLY LOADED CSS FILES(all plugin and page related styles must be loaded between GLOBAL and THEME css files ) -->
<link id="ng_load_plugins_before"/>
<!-- END DYMANICLY LOADED CSS FILES -->

<!-- BEGIN THEME STYLES -->
<!-- DOC: To use 'rounded corners' style just load 'components-rounded.css' stylesheet instead of 'components.css' in the below style tag -->
<link href="../../assets/global/css/components.css" id="style_components" rel="stylesheet" type="text/css"/>
<link href="../../assets/global/css/plugins.css" rel="stylesheet" type="text/css"/>
<link href="../../assets/admin/layout2/css/layout.css" rel="stylesheet" type="text/css"/>
<link href="../../assets/admin/layout2/css/themes/default.css" rel="stylesheet" type="text/css" id="style_color"/>
<link href="../../assets/admin/layout2/css/custom.css" rel="stylesheet" type="text/css"/>
<!-- END THEME STYLES -->

<link rel="shortcut icon" href="favicon.ico"/>
<!-- BEGIN JAVASCRIPTS(Load javascripts at bottom, this will reduce page load time) -->

    <!-- BEGIN CORE JQUERY PLUGINS -->
    <!--[if lt IE 9]>
    <script src="../../assets/global/plugins/respond.min.js"></script>
    <script src="../../assets/global/plugins/excanvas.min.js"></script> 
    <![endif]-->
    <script src="../../assets/global/plugins/jquery.min.js" type="text/javascript"></script>
    <script src="../../assets/global/plugins/jquery-migrate.min.js" type="text/javascript"></script>
    <script src="../../assets/global/plugins/bootstrap/js/bootstrap.min.js" type="text/javascript"></script>
    <script src="../../assets/global/plugins/bootstrap-hover-dropdown/bootstrap-hover-dropdown.min.js" type="text/javascript"></script>
    <script src="../../assets/global/plugins/jquery-slimscroll/jquery.slimscroll.min.js" type="text/javascript"></script>
    <script src="../../assets/global/plugins/jquery.blockui.min.js" type="text/javascript"></script>
    <script src="../../assets/global/plugins/jquery.cokie.min.js" type="text/javascript"></script>
    <script src="../../assets/global/plugins/uniform/jquery.uniform.min.js" type="text/javascript"></script>
    <!-- END CORE JQUERY PLUGINS -->

    <!-- BEGIN CORE ANGULARJS PLUGINS -->
    <script src="../../assets/global/plugins/angularjs/angular.min.js" type="text/javascript"></script> 
    <script src="../../assets/global/plugins/angularjs/angular-sanitize.min.js" type="text/javascript"></script>
    <script src="../../assets/global/plugins/angularjs/angular-touch.min.js" type="text/javascript"></script>   
    <script src="../../assets/global/plugins/angularjs/plugins/angular-ui-router.min.js" type="text/javascript"></script>
    <script src="../../assets/global/plugins/angularjs/plugins/ocLazyLoad.min.js" type="text/javascript"></script>
    <script src="../../assets/global/plugins/angularjs/plugins/ui-bootstrap-tpls.min.js" type="text/javascript"></script>


    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.0/angular-messages.js"></script>
    <script src = "http://ajax.googleapis.com/ajax/libs/angularjs/1.3.14/angular-route.min.js"></script>
    <script src = "https://cdnjs.cloudflare.com/ajax/libs/ngStorage/0.3.10/ngStorage.min.js"></script>
    <script src = "https://cdnjs.cloudflare.com/ajax/libs/angular-local-storage/0.2.7/angular-local-storage.min.js"></script>
    <script nsrc="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.5/angular-route.min.js"></script>
    <script src="http://angular-ui.github.io/bootstrap/ui-bootstrap-tpls-0.10.0.js" type="text/javascript"></script>
    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.7/angular-resource.min.js"></script>



        <script src="js/module/module.js"></script>
        <script src="js/controller/controller.js"></script>
    <!-- END CORE ANGULARJS PLUGINS -->

    <!-- BEGIN APP LEVEL JQUERY SCRIPTS -->
    <script src="../../assets/global/scripts/metronic.js" type="text/javascript"></script>
    <script src="../../assets/admin/layout2/scripts/layout.js" type="text/javascript"></script>
    <script src="../../assets/admin/layout2/scripts/demo.js" type="text/javascript"></script>  
    <!-- END APP LEVEL JQUERY SCRIPTS -->

    <script type="text/javascript">
        /* Init Metronic's core jquery plugins and layout scripts */
        $(document).ready(function() {   
            Metronic.init(); // Run metronic theme
            Metronic.setAssetsPath('../../assets/'); // Set the assets folder path          
        });
    </script>

</head>

<body>

    <!-- BEGIN PAGE SPINNER -->
    <div ng-spinner-bar class="page-spinner-bar">
        <div class="bounce1"></div>
        <div class="bounce2"></div>
        <div class="bounce3"></div>
    </div>
    <!-- END PAGE SPINNER -->

    <!-- BEGIN HEADER -->
    <div data-ng-include="'js/view/header.html'"  class="page-header navbar navbar-fixed-top">
    </div>
    <!-- END HEADER -->

    <div class="clearfix">
    </div>

    <!-- BEGIN CONTAINER -->
    <div class="container">
        <div class="page-container">
            <!-- BEGIN SIDEBAR -->
            <div ng-include="'js/view/sidebar.html'" class="page-sidebar-wrapper">          
            </div>
            <!-- END SIDEBAR -->
            <div class="page-content-wrapper">
                <div class="page-content">
                    <!-- BEGIN STYLE CUSTOMIZER(optional) -->
                    <div ng-view></div>
                    <!-- END STYLE CUSTOMIZER -->
                    <!-- BEGIN ACTUAL CONTENT -->
                    <div ui-view class="fade-in-up">
                    </div> 
                    <!-- END ACTUAL CONTENT -->
                </div>
            </div>
        </div>
        <!-- BEGIN FOOTER -->
        <div data-ng-include="'js/view/footer.html'" class="page-footer">
        </div>
        <!-- END FOOTER -->
    </div>
    <!-- END CONTAINER -->


</body>
<!-- END BODY -->
</html>

index.ejs 文件包括页眉页脚和侧边栏文件。

这是我的头文件。

<!-- BEGIN HEADER INNER -->
<div class="page-header-inner container">
    <!-- BEGIN LOGO -->
    <div class="page-logo">
        <a href="#/dashboard.html">
        <img src="../../../assets/admin/layout2/img/logo-default.png" alt="logo" class="logo-default"/>
        </a>
        <div class="menu-toggler sidebar-toggler">
            <!-- DOC: Remove the above "hide" to enable the sidebar toggler button on header -->
        </div>
    </div>
    <!-- END LOGO -->
    <!-- BEGIN RESPONSIVE MENU TOGGLER -->
    <a href="javascript:;" class="menu-toggler responsive-toggler" data-toggle="collapse" data-target=".navbar-collapse">
    </a>
    <!-- END RESPONSIVE MENU TOGGLER -->
    <!-- BEGIN PAGE ACTIONS -->
    <!-- DOC: Remove "hide" class to enable the page header actions -->
    <div class="page-actions">
        <!--<div class="btn-group hide">
            <button type="button" class="btn btn-circle red-pink dropdown-toggle" data-toggle="dropdown">
            <i class="icon-bar-chart"></i>&nbsp;<span class="hidden-sm hidden-xs">New&nbsp;</span>&nbsp;<i class="fa fa-angle-down"></i>
            </button>
            <ul class="dropdown-menu" role="menu">
                <li>
                    <a href="#">
                    <i class="icon-user"></i> New User </a>
                </li>
                <li>
                    <a href="#">
                    <i class="icon-present"></i> New Event <span class="badge badge-success">4</span>
                    </a>
                </li>
                <li>
                    <a href="#">
                    <i class="icon-basket"></i> New order </a>
                </li>
                <li class="divider">
                </li>
                <li>
                    <a href="#">
                    <i class="icon-flag"></i> Pending Orders <span class="badge badge-danger">4</span>
                    </a>
                </li>
                <li>
                    <a href="#">
                    <i class="icon-users"></i> Pending Users <span class="badge badge-warning">12</span>
                    </a>
                </li>
            </ul>
        </div>-->
        <!--<div class="btn-group">
            <button type="button" class="btn btn-circle green-haze dropdown-toggle" data-toggle="dropdown">
            <i class="fa fa-plus"></i>&nbsp;<span class="hidden-sm hidden-xs">New&nbsp;</span>&nbsp;<i class="fa fa-angle-down"></i>
            </button>
            <ul class="dropdown-menu" role="menu">
                <li>
                    <a href="#">
                    <i class="icon-docs"></i> New Post </a>
                </li>
                <li>
                    <a href="#">
                    <i class="icon-tag"></i> New Comment </a>
                </li>
                <li>
                    <a href="#">
                    <i class="icon-share"></i> Share </a>
                </li>
                <li class="divider">
                </li>
                <li>
                    <a href="#">
                    <i class="icon-flag"></i> Comments <span class="badge badge-success">4</span>
                    </a>
                </li>
                <li>
                    <a href="#">
                    <i class="icon-users"></i> Feedbacks <span class="badge badge-danger">2</span>
                    </a>
                </li>
            </ul>
        </div>-->
    </div>
    <!-- END PAGE ACTIONS -->
    <!-- BEGIN PAGE TOP -->
    <div class="page-top">
        <!-- BEGIN HEADER SEARCH BOX -->
        <!-- DOC: Apply "search-form-expanded" right after the "search-form" class to have half expanded search box -->
        <!--<form class="search-form search-form-expanded" action="#" method="GET">
            <div class="input-group">
                <input type="text" class="form-control" placeholder="Search..." name="query">
                <span class="input-group-btn">
                <a href="javascript:;" class="btn submit"><i class="icon-magnifier"></i></a>
                </span>
            </div>
        </form>-->
        <!-- END HEADER SEARCH BOX -->
        <!-- BEGIN TOP NAVIGATION MENU -->
        <div class="top-menu">
            <ul class="nav navbar-nav pull-right">

                <li class="dropdown dropdown-user">
                    <a href="javaScript:;" class="dropdown-toggle" dropdown-menu-hover data-toggle="dropdown" data-close-others="true">
                    <img alt="" class="img-circle" src="../../../assets/admin/layout2/img/avatar3_small.jpg"/>

                   <span class="username username-hide-on-mobile">
                    {{adminData.name}} q</span>


                    <i class="fa fa-angle-down"></i>
                    </a>
                    <ul class="dropdown-menu dropdown-menu-default">

                        <li>
                            <a href="#/login">
                            <i class="icon-key"></i> Log Out </a>
                        </li>
                    </ul>
                </li>
                <!-- END USER LOGIN DROPDOWN -->
            </ul>
        </div>
        <!-- END TOP NAVIGATION MENU -->
    </div>
    <!-- END PAGE TOP -->
</div>
<!-- END HEADER INNER -->

【问题讨论】：

你有controller header吗？
没有，我在主文件 index.ejs 中使用了 header
当询问由您的代码引起的问题时，如果您提供人们可以用来重现问题的代码，您将获得更好的答案。该代码应该尽可能少地使用仍然产生相同问题的代码。请阅读How to create a Minimal, Complete, and Verifiable example。
@ShahzadDitro 您的 index.ejs 文件是否可以访问您的 Angular 应用程序？请显示您的 index.ejs 文件的代码，并描述那里的情况
@JunaidSalaat 我更新了我的问题

标签： javascript angularjs node.js mean-stack

【解决方案1】：

尝试使用服务/工厂。有点不是角度的方式，但工作正常（ES6）

export function metadataService(httpFactory) {
    'ngInject';
    this.setMetaTags = function (title='CONSTART',description= 'CONSTART',foto){
        var bImgUrl = httpFactory.baseImgUrl;
        var photo = foto? bImgUrl+foto :'assets/ico/favicon-32x32.png';
        document.querySelector('meta[itemprop=name]').content = title;
        document.querySelector('meta[itemprop=description]').content = description;
        document.querySelector('meta[itemprop=image]').content = photo;



    };
}

在你的控制器/组件/指令中获取你的 localStorage 数据和

metadataService(/localStorage.getItem(someItem)/)

【讨论】：