点击后不显示二级菜单
我是电脑的tomcat
<link rel="stylesheet" href="css/bootstrap.min.css" type="text/css"></link>
<link rel="stylesheet" href="css/bootstrap-theme.min.css" type="text/css"></link>
<script type="text/javascript">
$('.btn btn-default dropdown-toggle').dropdown();
</script>
<body style="padding:50px 50px">
</head>
<body>
<div class="dropdown">
<button class="btn btn-default dropdown-toggle" type="button" id="dropdownMenu1" data-toggle="dropdown">
下拉菜单
<span class="caret"></span>
</button>
<ul class="dropdown-menu" role="menu" aria-labelledby="dropdownMenu1">
<li role="presentation"><a role="menuitem" tabindex="-1" href="#">下拉菜单项</a></li>
<li role="presentation"><a role="menuitem" tabindex="-1" href="#">下拉菜单项</a></li>
<li role="presentation"><a role="menuitem" tabindex="-1" href="#">下拉菜单项</a></li>
<li role="presentation"><a role="menuitem" tabindex="-1" href="#">下拉菜单项</a></li>
</ul>
</div>
<script type="text/javascript" src="<%=path%>/js/jquery-1.8.3.js"></script>
<script src="js/bootstrap.min.js"></script>
</body>
</html>
