{
    "msg": "",
    "data": [
        {
            "text": "开发测试",
            "expanded": true,
            "nid": 1,
            "children": [
                {
                    "text": "主机分组",
                    "nid": 5,
                    "parent_id": "pool-1",
                    "iconCls": "treedir",
                    "type": "servergroup",
                    "id": "servergroup-5",
                    "leaf" : true
                }
            ],
            "parent_id": "root-1",
            "iconCls": "treepool",
            "type": "pool",
            "id": "pool-1"
        }
    ],
    "success": true,
    "ret_code": "ok"
}