使用miniui框架制作树形节点
<div id="leftTree" class="mini-outlooktree" url="<%=basePath%>manager/system/loginDispatcher/showMenu.action" onnodeclick="onNodeSelect"
textField="text" idField="id" parentField="pid" activeIndex="0"> //activeIndex属性 控制进来之后第几个节点展开 默认从0开始
</div>