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AngularJS+Bootstrap3多級導航菜單的實現代碼

來源：懂視網責編：小采時間：2020-11-27 22:32:32

AngularJS+Bootstrap3多級導航菜單的實現代碼

AngularJS+Bootstrap3多級導航菜單的實現代碼:將介紹如何用AngularJS構建一個強大的web前端系統。angularjs是由Google團隊開發(fā)的一款非常優(yōu)秀web前端框架。在當前如此多的web框架下，AngularJS能脫穎而出，從架構設計上就高人一等，雙向數據綁定，依賴注入，指令，MVC，模板。Angular.js創(chuàng)新

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點擊下載本文 文檔為doc格式

導讀AngularJS+Bootstrap3多級導航菜單的實現代碼:將介紹如何用AngularJS構建一個強大的web前端系統。angularjs是由Google團隊開發(fā)的一款非常優(yōu)秀web前端框架。在當前如此多的web框架下，AngularJS能脫穎而出，從架構設計上就高人一等，雙向數據綁定，依賴注入，指令，MVC，模板。Angular.js創(chuàng)新

將介紹如何用AngularJS構建一個強大的web前端系統。angularjs是由Google團隊開發(fā)的一款非常優(yōu)秀web前端框架。在當前如此多的web框架下，AngularJS能脫穎而出，從架構設計上就高人一等，雙向數據綁定，依賴注入，指令，MVC，模板。Angular.js創(chuàng)新地把后臺技術融入前端開發(fā)，掃去jQuery一度的光芒。用angularjs就像寫后臺代碼，更規(guī)范，更結構化，更可控。

本文將介紹如何實現多限級導航菜單。

bootstrap3-navbar

1.靜態(tài)多級菜單實現

2.動態(tài)多級菜單實現

1. 靜態(tài)多級菜單實現

要實現多級菜單，我們要分兩步走，第一步就是把靜態(tài)菜單的功能實現，通過純靜態(tài)的HTML代碼完成。第二步，通過Angluarjs進行動態(tài)實現，最后把數據和程序分離，通過Ajax加載多級菜單數據。

我們先從靜態(tài)多級菜單開始動手，一個六級導航菜單是什么樣子呢？

m-nav1

如上圖所示，我們定義一些功能需求。

1級菜單是導航條上的文字。

當1級菜單導航事件被觸發(fā)，顯示2級菜單導航，在1級菜單的正下方顯示。

當2級菜單導航事件被觸發(fā)，顯示3級菜單導航，在2級菜單的右方顯示。

當3級菜單導航事件被觸發(fā)，顯示4級菜單導航，在3級菜單的右方顯示。

以此類推，不考慮下級菜單顯示出界問題。

繼續(xù)上文中的項目環(huán)境，增加一個新HTML文件: page3.html

~ vi D:\workspace\javascript\angular-navbar\page3.html
<!DOCTYPE html>
<html lang="zh-cn">
<head>
 <meta charset="utf-8">
 <title>多級導航菜單</title>
 <meta name="description" content="多級導航菜單">
 <meta http-equiv="X-UA-Compatible" content="IE=edge">
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <meta name="fragment" content="!" />
 <link rel="stylesheet" href="/bower_components/bootstrap/dist/css/bootstrap.min.css" rel="external nofollow" rel="external nofollow" >
 <link rel="stylesheet" href="/css/main.css" rel="external nofollow" rel="external nofollow" >
</head>
<body ng-app="page2">
<div class="container">
 <div class="row" ng-controller="NavbarCtrl">
 <nav class="navbar navbar-default" role="navigation">
 <div class="navbar-header">
 <a class="navbar-brand" href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >多級菜單導航</a>
 </div>
 <div class="collapse navbar-collapse navbar-ex1-collapse">
 <ul class="nav navbar-nav">
 <li class="active"><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Link</a></li>
 <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Link</a></li>
 <li class="dropdown">
 <a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="dropdown-toggle" data-toggle="dropdown">Multi Level <b class="caret"></b></a>
 <ul class="dropdown-menu menu-top">
 <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Level 1</a></li>
 <li class="dropdown-submenu"> <a tabindex="-1" href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >More options</a>
 <ul class="dropdown-menu">
 <li><a tabindex="-1" href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Level 2</a>
 </li>
 <li class="dropdown-submenu"> <a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >More..</a>
 <ul class="dropdown-menu">
 <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Level 3</a>
 </li>
 <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Level 3</a>
 </li>
 <li class="dropdown-submenu"> <a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >More..</a>
 <ul class="dropdown-menu">
 <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Level 4</a>
 </li>
 <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Level 4</a>
 </li>
 <li class="dropdown-submenu"> <a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >More..</a>
 <ul class="dropdown-menu">
 <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Level 5</a>
 </li>
 <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Level 5</a>
 </li>
 </ul>
 </li>
 </ul>
 </li>
 </ul>
 </li>
 <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Level 2</a>
 </li>
 <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Level 2</a>
 </li>
 </ul>
 </li>
 <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Level 1</a></li>
 </ul>
 </li>
 </ul>
 </div>
 </nav>
 </div>
</div>
<script src="https://www.gxlcms.com/bower_components/jquery/dist/jquery.min.js"></script>
<script src="https://www.gxlcms.com/bower_components/angular/angular.min.js"></script>
<script src="https://www.gxlcms.com/bower_components/bootstrap/dist/js/bootstrap.min.js"></script>
<script src="https://www.gxlcms.com/bower_components/angular-route/angular-route.min.js"></script>
<script src="https://www.gxlcms.com/bower_components/angular-bootstrap/ui-bootstrap-tpls.min.js"></script>
<script src="https://www.gxlcms.com/js/app.js"></script>
</body>
</html>

新建一個css文件：main.css

~ vi D:\workspace\javascript\angular-navbar\css\main.css
.dropdown:hover .menu-top {
 display: block;
}
.dropdown-submenu{
 position:relative;
}
.dropdown-submenu > .dropdown-menu{
 top:0;
 left:100%;
 margin-top:-6px;
 margin-left:-1px;
 -webkit-border-radius:0 6px 6px 6px;
 -moz-border-radius:0 6px 6px 6px;
 border-radius:0 6px 6px 6px;
}
.dropdown-submenu:hover > .dropdown-menu{
 display:block;
}
.dropdown-submenu > a:after{
 display:block;
 content:" ";
 float:right;
 width:0;
 height:0;
 border-color:transparent;
 border-style:solid;
 border-width:5px 0 5px 5px;
 border-left-color:#cccccc;
 margin-top:5px;
 margin-right:-10px;
}
.dropdown-submenu:hover > a:after{
 border-left-color:#ffffff;
}
.dropdown-submenu .pull-left{
 float:none;
}
.dropdown-submenu.pull-left > .dropdown-menu{
 left:-100%;
 margin-left:10px;
 -webkit-border-radius:6px 0 6px 6px;
 -moz-border-radius:6px 0 6px 6px;
 border-radius:6px 0 6px 6px;
}

刷新一下網頁，我們能就看到上面的截圖的效果，代碼參考：http://firdaus.grandexa.com/2013/09/twitter-bootstrap-3-multilevel-dropdown-menu/

通過HTML和CSS就實現了多級菜單的靜態(tài)展示效果，如果導航菜單不是經常變化，那么用靜態(tài)的方式，把代碼寫死就可以了。但有一些場景，菜單是需要動態(tài)生成，比如通過權限控制訪問鏈接，每個用戶的權限不一樣，那么能看到的菜單選項也就不一樣，這個時候就需要做成動態(tài)的，用程序去控制菜單的加載和展示。

2. 動態(tài)多級菜單實現

有了靜態(tài)多級導航菜單的HTML代碼結構，改寫成動態(tài)的，其實也不太復雜。

我們需要做2件事：

把導航菜單的數據結構化存儲，比如存放到文件 nav.json。

用Angularjs的API加載nav.json數據，進行展示。

我們先定義一下導航菜單的數據格式，以JSON格式定義，每個菜單項都有3個屬性字段

label: 導航菜單項顯示的名字。

link: 導航菜單項的跳轉鏈接，可以不定義。

children: 導航菜單項的子菜單，循環(huán)對象存儲。

{
 "label": "levelA",
 "link": "#",
 "children": [
 {
 "label": "levelB",
 "link": "#",
 "children": []
 }
 ]
}

下面我們用真實的數據定義導航菜單，以我的金融系統為例。

m-nav3

新建JSON數據文件：nav.json。

~ vi D:\workspace\javascript\angular-navbar\js\nav.json
[
 {
 "label": "債券",
 "children": [
 {
 "label": "可轉債",
 "children": [
 {"label": "可轉債溢價率分析","link":"#"},
 {"label": "可轉債NS定價","link":"#"},
 {"label": "可轉債歸因分析","link":"#"},
 {"label": "可轉債套利實時監(jiān)控","link":"#"}
 ]
 },
 {
 "label": "信用債",
 "children": [
 {"label": "交易所債券監(jiān)控","link":"#"}
 ]
 },
 {
 "label": "利率債","link":"#",
 "children": []
 },
 {
 "label": "國債期貨",
 "children": [
 {"label": "國債期貨表現分析","link":"#"},
 {"label": "國債期貨實時套利監(jiān)控","link":"#"},
 {"label": "IRR歷史時間序列查詢","link":"#"},
 {"label": "IRR實時監(jiān)控","link":"#"}
 ]
 }
 ]
 },
 {
 "label": "股票",
 "children": [
 {
 "label": "基本面分析",
 "children": [
 {"label": "上市公司基本面數據查看","link":"#"}
 ]
 },
 {
 "label": "量化選股策略",
 "children": []
 }
 ]
 },
 {
 "label": "宏觀",
 "children": [
 {
 "label": "宏觀數據",
 "children": [
 {"label": "宏觀數據概覽","link":"#"}
 ]
 },
 {
 "label": "宏觀經濟預測",
 "children": []
 },
 {
 "label": "宏觀經濟和大類資產表現",
 "children": []
 }
 ]
 }
]

我們看到這個導航菜單的數據，有3級，“債券–>可轉債–>可轉債歸因分析”，那么接下我們就直接實現對三級菜單的編程。創(chuàng)建HTML文件page4.html。

~ vi D:\workspace\javascript\angular-navbar\page4.html
<!DOCTYPE html>
<html lang="zh-cn">
<head>
 <meta charset="utf-8">
 <title>多級動態(tài)導航菜單</title>
 <meta name="description" content="多級動態(tài)導航菜單">
 <meta http-equiv="X-UA-Compatible" content="IE=edge">
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <meta name="fragment" content="!" />
 <link rel="stylesheet" href="/bower_components/bootstrap/dist/css/bootstrap.min.css" rel="external nofollow" rel="external nofollow" >
 <link rel="stylesheet" href="/css/main.css" rel="external nofollow" rel="external nofollow" >
</head>
<body ng-app="page4">
<div class="container">
 <div class="row" ng-controller="NavbarCtrl">
 <nav class="navbar navbar-default" role="navigation">
 <div class="navbar-header">
 <a class="navbar-brand" href="/" rel="external nofollow" >量化投資平臺</a>
 </div>
 <div class="collapse navbar-collapse navbar-ex1-collapse">
 <ul class="nav navbar-nav">
 <li ng-repeat="a1 in navbar" class="dropdown">
 <a href="?{{ a1.label }}" rel="external nofollow" class="dropdown-toggle" data-toggle="dropdown">{{ a1.label }} <b class="caret"></b></a>
 <ul class="dropdown-menu menu-top">
 <li ng-repeat="a2 in a1.children" class="dropdown-submenu">
 <a tabindex="-1" href="?{{ a2.label }}" rel="external nofollow" >{{ a2.label }}</a>
 <ul ng-show="a2.children.length>0" class="dropdown-menu">
 <li ng-repeat="a3 in a2.children">
 <a href="?{{ a3.label }}" rel="external nofollow" ng-click="go(a3.link)">{{ a3.label }}</a>
 </li>
 </ul>
 </li>
 </ul>
 </li>
 </ul>
 </div>
 </nav>
 </div>
</div>
<script src="https://www.gxlcms.com/bower_components/jquery/dist/jquery.min.js"></script>
<script src="https://www.gxlcms.com/bower_components/angular/angular.min.js"></script>
<script src="https://www.gxlcms.com/bower_components/bootstrap/dist/js/bootstrap.min.js"></script>
<script src="https://www.gxlcms.com/bower_components/angular-route/angular-route.min.js"></script>
<script src="https://www.gxlcms.com/bower_components/angular-bootstrap/ui-bootstrap-tpls.min.js"></script>
<script src="https://www.gxlcms.com/js/app.js"></script>
</body>
</html>

在Angularjs的控制器文件app.js文件中，增加page4的定義。

var page4 = angular.module('page4', ['ui.bootstrap', 'ngRoute']);
page4.config(['$routeProvider', '$locationProvider', '$sceProvider', function ($routeProvider, $locationProvider, $sceProvider) {
 $routeProvider
 .when('/', {controller: 'DemoCtrl'})
 .otherwise({redirectTo: '/'});
 $locationProvider.html5Mode(true);
}]);
page4.controller('NavbarCtrl', function ($scope,$http,$location) {
 $http.get("/js/nav.json").success(function(json){
 $scope.navbar = json;
 });
});
page4.controller('DemoCtrl', function () {
 // nothing
});

查看一下顯示效果，與上面的截圖類似。

m-nav4

文章到這里就結束了，已經實現了我的功能需求。但這個話題還有很多可以優(yōu)化的地方，比如實現無限級的導航菜單，菜單的展示樣式替換，展示區(qū)間的控制，鼠標動作事件，封裝成Angularjs的插件開源項目等。有興趣的同學，可以我的程序的基礎上繼續(xù)努力，做出優(yōu)秀的開源項目來。

代碼已上傳到github：https://github.com/bsspirit/angular-navbar，同學可以根據需要自行下載，也可以直接通過命令下載代碼。

git clone https://github.com/bsspirit/angular-navbar.git
cd angular-navbar
bower install
anywhere

總結

以上所述是小編給大家介紹的AngularJS+Bootstrap3多級導航菜單的實現代碼，希望對大家有所幫助，如果大家有任何疑問請給我留言，小編會及時回復大家的。在此也非常感謝大家對腳本之家網站的支持！

聲明：本網頁內容旨在傳播知識，若有侵權等問題請及時與本網聯系，我們將在第一時間刪除處理。TEL:177 7030 7066 E-MAIL:11247931@qq.com

AngularJS+Bootstrap3多級導航菜單的實現代碼

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