目前做了一个easyui项目需要显示多级菜单，菜单配置到数据库中，因此每级菜单都需要到数据库中取，用了jQuery EasyUI方便多了。
效果体验：http://hovertree.com/texiao/jeasyui/2/
下载：http://hovertree.com/h/bjaf/kbtdmn5u.htm
参考：http://hovertree.com/jeasyui/demo/tree/checkbox.html
http://hovertree.com/jeasyui/demo/tree/dnd.html
HTML代码：
1 <!DOCTYPE html> 2 <html> 3 <head> 4 <meta charset="UTF-8"> 5 <title>树菜单操作 - jQuery EasyUI 范例 - 何问起</title><base target="_blank" /> 6 <link rel="stylesheet" type="text/css" href="http://hovertree.com/jeasyui/themes/default/easyui.css"> 7 <link rel="stylesheet" type="text/css" href="http://hovertree.com/jeasyui/themes/icon.css"> 8 <link rel="stylesheet" type="text/css" href="http://hovertree.com/jeasyui/demo/demo.css"> 9 <script type="text/javascript" src="http://hovertree.com/ziyuan/jquery/jquery-1.12.0.min.js"></script> 10 <script type="text/javascript" src="http://hovertree.com/jeasyui/jquery.easyui.min.js"></script> 11 <style>a{color:black;text-decoration:none;}</style> 12 </head> 13 <body> 14 <h2>树菜单操作</h2> 15 <p>点击下列按钮体验效果.</p> 16 <div style="margin:20px 0;"> 17 <a href="javascript:;" class="easyui-linkbutton" onclick="collapseAll()" target="_self">全部收起</a> 18 <a href="javascript:;" class="easyui-linkbutton" onclick="expandAll()" target="_self">全部展开</a> 19 <a href="javascript:;" class="easyui-linkbutton" onclick="expandTo()" target="_self">展开选择指定项</a> 20 <a href="javascript:;" class="easyui-linkbutton" onclick="getSelected()" target="_self">获取选择项值</a> 21 </div> 22 <div class="easyui-panel" style="padding:5px"> 23 <ul id="tt" class="easyui-tree" data-options="url:'tree_data1.json',method:'get',animate:true"></ul> 24 </div> 25 <br /><br /> 26 <a href="http://hovertree.com/">首页</a> 27 <script type="text/javascript"> 28 function collapseAll(){ 29 $('#tt').tree('collapseAll'); 30 } 31 function expandAll(){ 32 $('#tt').tree('expandAll'); 33 } 34 function expandTo(){ 35 var node = $('#tt').tree('find',113); 36 $('#tt').tree('expandTo', node.target).tree('select', node.target); 37 } 38 function getSelected(){ 39 var node = $('#tt').tree('getSelected'); 40 if (node){ 41 var s = node.text; 42 if (node.attributes){ 43 s += ","+node.attributes.p1+","+node.attributes.p2; 44 } 45 alert(s); 46 } 47 } 48 </script> 49 </body> 50 </html>
菜单项的json文件代码：
[ { "id": 1, "text": "Tree菜单", "children": [ { "id": 11, "text": "Photos", "state": "closed", "children": [ { "id": 111, "text": "<a href='http://hovertree.com'>何问起</a>" }, { "id": 112, "text": "<a href='http://hovertree.com/jeasyui/'>EasyUI</a>" }, { "id": 113, "text": "<a href='http://hovertree.com/menu/jquery/'>jQuery</a>" } ] }, { "id": 12, "text": "Program Files", "children": [ { "id": 121, "text": "<a href='http://hovertree.com/h/bjaf/hoverclock.htm'>HoverClock</a>" }, { "id": 122, "text": "<a href='http://hovertree.com/h/bjaf/easysector.htm'>画饼图</a>", "attributes": { "p1": "Custom Attribute1", "p2": "Custom Attribute2" } }, { "id": 123, "text": "<a href='http://hovertree.com/h/bjaf/hovertreebatch.htm'>批量重命名</a>" }, { "id": 124, "text": "<a href='http://tool.hovertree.com/a/base64/'>图像转码</a>", "checked": true } ] }, { "id": 13, "text": "<a href='http://hovertree.com/texiao/game/'>见缝插针</a>" }, { "id": 14, "text": "<a href='http://hovertree.com/shortanswer/bjaf/j43wyyvr.htm'>选择题</a>" }, { "id": 15, "text": "<a href='http://hovertree.com/h/bjaf/css3icon.htm'>图标</a>" }, { "id": 16, "text": "<a href='http://hovertree.com/h/bjaf/treeaction.htm'>原文</a>" } ] } ]