1、 添加自定义属性 page
2、 为 ztree 每个树形节点,添加点击事件

<!DOCTYPE html>
<html>

    <head>
        <meta charset="UTF-8">
        <title>ztree树形菜单的使用</title>
        <!-- 导入jquery核心类库 -->
        <script type="text/javascript" src="../js/jquery-1.8.3.js"></script>
        <!-- 导入easyui类库 -->
        <link id="easyuiTheme" rel="stylesheet" type="text/css" href="../js/easyui/themes/default/easyui.css">
        <link rel="stylesheet" type="text/css" href="../js/easyui/themes/icon.css">
        <link rel="stylesheet" type="text/css" href="../css/default.css">
        <script type="text/javascript" src="../js/easyui/jquery.easyui.min.js"></script>
        <!--引入ztree-->
        <script src="../js/ztree/jquery.ztree.all-3.5.js" type="text/javascript" charset="utf-8"></script>
        <link rel="stylesheet" type="text/css" href="../js/ztree/zTreeStyle.css" />

        <script type="text/javascript">
            //页面加载后执行
            $(function() {
                //1.进行ztree树形菜单设置,开启简单json数据支持
                var setting = {
                    data:{
                        simpleData:{
                            enable:true//开启简单json数据格式支持
                        }
                    },
                    callback:{
                        onClick:function(event,treeId,treeNode,clickFlag){
                            var content = '<div style="width:100%;height:100%;overflow:hidden;">'+'<iframe src="'+treeNode.page+'" scrolling="auto" style="width:100%;height:100%;border:0;"></iframe></div>'
                            //没有设置page属性的树形菜单,不打开选项卡
                            if(treeNode.page!=undefined && treeNode.page!=""){
                                //如果选项卡已经打开,就选中
                                if($("#mytabs").tabs('exists',treeNode.name)){
                                    //选中选项卡
                                    $("#mytabs").tabs('select',treeNode.name);
                                }else{
                                    //如果没有打开,添加选项卡
                                    $("#mytabs").tabs('add',{
                                        title:treeNode.name,
                                        content:content,
                                        closable:true
                                    });
                                }
                            }
                        }
                    }
                };

                //2.提供ztree树形菜单数据
                var zNodes = [
                    {id:1,pId:0,name:"父节点一"},
                    {id:2,pId:0,name:"父节点二"},
                    {id:11,pId:1,name:"子节点一"},
                    {id:12,pId:1,name:"子节点二"},
                    {id:13,pId:2,name:"CSDN博客",page:"http://blog.csdn.net/a772304419"},
                    {id:14,pId:2,name:"博客园",page:"http://www.cnblogs.com/niwotaxuexiba/"}
                ];

                //3.生成树形菜单
                $.fn.zTree.init($("#baseMenu"),setting,zNodes);
            });
        </script>
    </head>

    <body class="easyui-layout">
        <div data-options="region:'north',title:'你我他学习吧-学习Java的好博客!'" style="height:100px"></div>
        <div data-options="region:'west',title:'菜单导航'" style="width:200px">
            <!--折叠面板-->
            <div class="easyui-accordion" data-options="fit:true">
                <div data-options="title:'基础菜单'">
                    <!--通过ztree插件,制作树形菜单-->
                    <ul id="baseMenu" class="ztree"></ul>
                </div>
                <div data-options="title:'系统菜单'">你我他学习吧</div>
            </div>
        </div>
        <div data-options="region:'center',title:'中部区域'">
            <!--选项卡面板-->
            <div id="mytabs" class="easyui-tabs" data-options="fit:true">
                <div data-options="title:'选项卡面板一',closable:true">选项卡面板一</div>
                <div data-options="title:'选项卡面板二',closable:true">选项卡面板二</div>
            </div>
        </div>
        <div data-options="region:'east',title:'东部区域'" style="width:100px"></div>
        <div data-options="region:'south',title:'南部区域'" style="height:100px"></div>
    </body>

</html>