zTree.js

<div class="treecontentpane">
     <ul id="busTree" class="ztree">
     </ul>
</div>

//初始化树
   zTree = $.fn.zTree.init($("#busTree"), setting);
//获取树
   var treeObj = $.fn.zTree.getZTreeObj("busTree");

//获取整个json节点
var nodes = zTree.getNodes();

treeObj.showNodes(nodes);

https://blog.csdn.net/qq3892997/article/details/80306551