layui 集成 ztree异步加载

首先，layui环境搭建，ztree环境引入
ztree的js和css都要引入，我这里暂时用的是core包>

静态，一句话就够了

	      <!-- 左侧菜单树形组件 -->
	      <div class="layui-col-md3">
	        <div class="layui-footer ">
	       	 <h1>左侧菜单树形组件</h1>
	          <ul id="menuTree" class="ztree"></ul>
	        </div>
	      </div>
	

js，这里主要就是格式要跟ztree对应
childNodes[i].isParent = childNodes[i].isParent; 千万不要忽略这个参数

// 定义菜单树的模块
var MenuTree = {
    init: function () {
	
		// 初始化菜单树
	   var setting = {
			view: {
				selectedMulti: false
			},
			async: {
				enable: true,
				url:"youurl",
				autoParam:["id=node"],
				otherParam:{"otherParam":"zTreeAsyncTest"},
				dataFilter: filter
			},
			callback: {
				beforeClick: beforeClick,
				beforeAsync: beforeAsync,
				onAsyncError: onAsyncError,
				onAsyncSuccess: onAsyncSuccess
			}
		};

		function filter(treeId, parentNode, childNodes) {
			if (!childNodes) return null;
			
			for (var i=0, l=childNodes.length; i<l; i++) {
				childNodes[i].name = childNodes[i].text;
				childNodes[i].pId = childNodes[i].parentId;
				childNodes[i].isParent = childNodes[i].isParent;
			}
			
	
			return childNodes;
		}
		
		function beforeClick(treeId, treeNode) {
			if (!treeNode.isParent) {
				alert("请选择父节点");
				return false;
			} else {
				return true;
			}
		}
		var log, className = "dark";
		function beforeAsync(treeId, treeNode) {
			className = (className === "dark" ? "":"dark");
			showLog("[ "+getTime()+" beforeAsync ]    " + ((!!treeNode && !!treeNode.name) ? treeNode.name : "root") );
			return true;
		}
		function onAsyncError(event, treeId, treeNode, XMLHttpRequest, textStatus, errorThrown) {
			showLog("[ "+getTime()+" onAsyncError ]    " + ((!!treeNode && !!treeNode.name) ? treeNode.name : "root") );
		}
		function onAsyncSuccess(event, treeId, treeNode, msg) {
			showLog("[ "+getTime()+" onAsyncSuccess ]    " + ((!!treeNode && !!treeNode.name) ? treeNode.name : "root") );
		}
		
		function showLog(str) {
			if (!log) log = $("#log");
			log.append("
"+str+"
");
			if(log.children("li").length > 8) {
				log.get(0).removeChild(log.children("li")[0]);
			}
		}
		function getTime() {
			var now= new Date(),
			h=now.getHours(),
			m=now.getMinutes(),
			s=now.getSeconds(),
			ms=now.getMilliseconds();
			return (h+":"+m+":"+s+ " " +ms);
		}

		function refreshNode(e) {
			var zTree = $.fn.zTree.getZTreeObj("menuTree"),
			type = e.data.type,
			silent = e.data.silent,
			nodes = zTree.getSelectedNodes();
			if (nodes.length == 0) {
				alert("请先选择一个父节点");
			}
			for (var i=0, l=nodes.length; i<l; i++) {
				zTree.reAsyncChildNodes(nodes[i], type, silent);
				if (!silent) zTree.selectNode(nodes[i]);
			}
		}


			$.fn.zTree.init($("#menuTree"), setting);
			$("#refreshNode").bind("click", {type:"refresh", silent:false}, refreshNode);
			$("#refreshNodeSilent").bind("click", {type:"refresh", silent:true}, refreshNode);
			$("#addNode").bind("click", {type:"add", silent:false}, refreshNode);
			$("#addNodeSilent").bind("click", {type:"add", silent:true}, refreshNode);
	}
};