Bootstrap实现下拉菜单多级联动

时间：2020-11-27 来源：智榕旅游
本文实例为大家分享了Bootstrap实现下拉菜单多级联动的具体代码，供大家参考，具体内容如下
<!DOCTYPE HTML> 
<html lang="zh-CN"> 
<head> 
 <meta charset="UTF-8"> 
 <title>Bootstrap 3 的多级下拉菜单示例</title> 
 <script type="text/javascript" src="http://libs.baidu.com/jquery/1.9.0/jquery.js"></script> 
 <link rel="stylesheet" href="http://libs.baidu.com/bootstrap/3.0.3/css/bootstrap.min.css" rel="external nofollow" /> 
 <script type="text/javascript" src="http://libs.baidu.com/bootstrap/3.0.3/js/bootstrap.min.js"></script> 
 <style type="text/css"> 
 .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; 
 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: #ccc; 
 margin-top: 5px; 
 margin-right: -10px; 
 } 
 .dropdown-submenu:hover > a:after { 
 border-left-color: #fff; 
 } 
 .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; 
 } 
 </style> 
</head> 
<body> 
<div class="container"> 
 <div class="row"> 
 <div class="form-group"> 
 
 <input type="hidden" name="category_id" id="category_id" value="" /> 
 <div class="dropdown"> 
 <a id="dLabel" role="button" data-toggle="dropdown" class="btn btn-white" data-target="#" href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><span id="select-title">选择分类</span> <span class="caret"></span></a> 
 <ul class="dropdown-menu multi-level" role="menu" aria-labelledby="dropdownMenu"> 
 <li><a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" data-index="1" data-title="一级菜单">一级菜单</a></li> 
 <li class="dropdown-submenu"> 
 <a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" data-index="2" data-title="一级菜单">一级菜单</a> 
 <ul class="dropdown-menu"> 
 <li><a data-index="2-1" href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" data-title="二级菜单">二级菜单</a></li> 
 </ul> 
 </li> 
 
 <li class="dropdown-submenu"> 
 <a tabindex="3" href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" data-title="一级菜单">一级菜单</a> 
 <ul class="dropdown-menu"> 
 <li><a tabindex="3-1" href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" data-title="二级菜单">二级菜单</a></li> 
 <li class="divider"></li> 
 <li class="dropdown-submenu"> 
 <a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" data-index="3-2" data-title="二级菜单">二级菜单</a> 
 <ul class="dropdown-menu"> 
 <li><a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" data-index="3-2-1" data-title="三级菜单">三级菜单</a></li> 
 </ul> 
 </li> 
 </ul> 
 </li> 
 </ul> 
 </div> 
 
 </div> 
 </div> 
</div> 
</body> 
</html> 
 
<script type="text/javascript"> 
 
 
$('.dropdown li a').click(function(){ 
 
 console.log(this); 
 title = $(this).attr("data-title"); 
 id = $(this).attr("data-index"); 
 $("#select-title").text(title); 
 $("#category_id").val(id); 
}) 
 
</script>
如果大家还想深入学习，可以点击这里进行学习，再为大家附3个精彩的专题：
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