easyui02(tree前端工作)

$(function(){
        //加载树
        $('#myTree').tree({    
            url:ctx+'/loadModuleServlet.do',
            onDblClick: function(node){
            //    alert(node.text);  // 在用户点击的时候提示
        //拿节点的子节点(后代)
        var cs = $('#myTree').tree('getChildren',node.target);        
        if(cs.length==0){//如果没有后代
            //判断是否存在
            var f = $('#myTab').tabs('exists',node.text);
            if(!f){//不存在就新建
            //新建一个选项卡(Tab页) iconCls:'icon-mini-refresh'
            $('#myTab').tabs('add',{    
                title:node.text,    //标题
                content:node.text,    //内容
                closable:true,  //是否可关闭
                iconCls:node.iconCls//图标
            }); 
                }
            else{
                //让对应选中
                $('#myTab').tabs('select',node.text);
            }
        }

<!--左侧tree树控件  -->
    <ul id="myTree" class="easyui-tree">   
    </ul>  
    </div>   
    <div data-options="region:'center'" style="padding:5px;background:#fff;">
        <!--中间选项卡Tab控件  -->
        <div id="myTab" class="easyui-tabs" style="width:100%;height:100%;">   
            <div data-options="iconCls:'icon-application-osx-home'" title="首页" style="padding:10px;display:none;">   
       <img src="img/bz05.jpg" width="100%" height="100%">   
    </div>

[{
    "id":1,
    "text":"My Documents",
    "iconCls":"icon-folder-heart",
    "children":[{
        "id":11,
        "text":"Photos",
        "state":"closed",
        "children":[{
            "id":111,
            "text":"Friend",
        "iconCls":"icon-group-link"
        },{
            "id":112,
            "text":"Wife",
            "iconCls":"icon-user-female"
        },{
            "id":113,
            "text":"Company",
            "iconCls":"icon-flag-blue"
        }]
    },{
        "id":12,
        "text":"Program Files",
        "children":[{
            "id":121,
            "text":"Intel"
        },{
            "id":122,
            "text":"Java",
            "attributes":{
                "p1":"Custom Attribute1",
                "p2":"Custom Attribute2"
            }
        },{
            "id":123,
            "text":"Microsoft Office"
        },{
            "id":124,
            "text":"Games",
            "checked":true
        }]
    },{
        "id":13,
        "text":"index.html"
    },{
        "id":14,
        "text":"about.html"
    },{
        "id":15,
        "text":"welcome.html"
    }]
}]

<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">