基于SimpleTree.js制作三级树形菜单效果

文章内容

SimpleTree是一款小巧，功能强大，能拖拽，支持异步，且兼容性很高的jquery Tree插件, 使用SimpleTree可以轻松制作一个树形菜单效果，在这里我介绍一个我工作种经常用到的一个效果。

html代码

 <link rel="stylesheet" href="css/index.css" />
<script type="text/javascript" src="js/jquery-1.10.2.min.js"></script>
<script type="text/javascript" src="js/simpletree.js"></script>
<div class="main clearfix">
    <div class="main-l">
        <div class="mainl-fl">
            <h3>
                产品类别</h3>
            <div class="st_tree">
                <ul>
                    <li class=" on "><a>一级类别</a></li>
                    <ul>
                        <li class=""><a href="#">二级类别</a></li>
                    </ul>
                    <li class="  "><a>一级类别</a></li>
                    <ul>
                        <li class=" active "><a href="#">二级类别</a></li>
                    </ul>
                    <li class=""><a>一级类别</a></li>
                    <ul>
                        <li class=""><a href="#">二级类别</a></li>
                        <li class=""><a href="#">二级类别</a></li>
                        <li class=""><a>二级类别</a></li>
                        <ul>
                            <li class=""><a href="#">三级类别</a></li>
                            <li class=""><a href="#">三级类别</a></li>
                            <li class=""><a href="#">三级类别</a></li>
                        </ul>
                    </ul>
                </ul>
            </div>
        </div>
    </div>
</div>
<script>
    $(function () {
        $(".st_tree").SimpleTree({
            click: function (a) {
                if (!$(a).attr("hasChild"))
                    alert($(a).attr("ref"));
            }

        });

    });

</script>

index.css代码

<style>
    *
    {
        margin: 0;
        padding: 0;
        list-style: none;
        font-family: "微软雅黑";
        box-sizing: border-box;
    }
    body
    {
        overflow-x: hidden;
    }
    img
    {
        border: 0;
    }
    a
    {
        text-decoration: none;
        color: #333;
        transition: all 0.3s;
        -o-transition: all 0.3s;
        -mos-transition: all 0.3s;
        -webkit-transition: all 0.3s;
    }
    input, textarea, button
    {
        outline: none;
    }
    em
    {
        font-style: normal;
    }
    h1, h2, h3, h4, h5, h6
    {
        font-weight: normal;
    }
    .clearfix
    {
        zoom: 1;
        clear: none;
    }
    .clearfix:before, .clearfix:after
    {
        content: ".";
        display: block;
        height: 0;
        clear: both;
        visibility: hidden;
    }
    
    
    
    .mainl-fl > h3
    {
        width: 250px;
        margin-left: -1px;
        height: 66px;
        line-height: 66px;
        text-align: center;
        font-size: 21px;
        font-weight: bold;
        background: #83c1f7;
        color: #fff;
    }
    .main-l
    {
        width: 250px;
        border-top: none;
    }
    
    
    
    
    
    
    .st_tree
    {
        width: 100%;
        height: auto;
        overflow: hidden;
    }
    .st_tree a
    {
        text-decoration: none;
    }
    .st_tree a:hover
    {
        color: #20649f;
    }
    .st_tree ul
    {
        width: 100%;
        height: auto;
        overflow: hidden;
    }
    .st_tree > ul > ul
    {
        padding-left: 20px;
    }
    .st_tree > ul > ul > ul
    {
        padding-left: 20px;
    }
    .st_tree ul li
    {
        color: #393939;
        font-size: 16px;
        float: left;
        line-height: 52px;
        width: 100%;
        height: 52px;
        border-bottom: 1px solid #e5e5e5;
    }
    .st_tree ul ul li
    {
        padding-left: 10px;
    }
    .st_tree ul li ul
    {
        width: 100%;
        height: auto;
        overflow: hidden;
    }
    .st_tree ul li ul li
    {
        width: 100%;
        height: auto;
        overflow: hidden;
        line-height: 35px;
        padding-left: 10px;
        text-overflow: ellipsis;
        overflow: hidden;
        white-space: nowrap;
        border-bottom: 1px solid #e5e5e5;
    }
    .st_tree ul li ul li a
    {
        color: #393939;
        font-size: 14px;
        width: 100%;
        height: 100%;
        display: block;
    }
    .st_tree ul ul li a
    {
        color: #393939;
        font-size: 14px;
        width: 100%;
        height: 100%;
        display: block;
    }
    .st_tree ul ul li.active a
    {
        color: #20649f;
    }
    .st_tree ul ul li:hover a
    {
        color: #20649f;
    }
    .st_tree .folder
    {
        background: url(../images/st_jt.png) no-repeat left 10px center;
        padding: 0 10px 0 30px;
    }
    .st_tree .open, .st_tree .on
    {
        background: #ededed url(../images/st_jt.png) no-repeat left 10px center;
        padding: 0 10px 0 30px;
    }
    .st_tree .open
    {
        background: #ededed url(../images/st_jt_open.png) no-repeat left 10px center;
        padding: 0 10px 0 30px;
    }
    .st_tree .open a, .st_tree .on a
    {
        color: #20649f;
    }
</style>

在线演示：演示