TEST CODE

代码如下:

/****
树初始化：$.fn.initTree(treeContentId, initTreeUrl, AsyncUrl)
		treeContentId: 用于展现 zTree 的 DOM 容器ID
		initTreeUrl：初始化树url
		AsyncUrl：异步加载树url
		return:zTree
获取选中节点：$.fn.initTree.getSlectedNode()
		return:treeNode
树节点点击事件回调函数function zTreeOnAsyncSuccess(event, treeId, treeNode)
		treeNode: 被点击的节点 JSON 数据对象
		return:null
树异步加载成功回调函数function zTreeOnAsyncSuccess(event, treeId, treeNode, msg)
		treeNode: 进行异步加载的父节点 JSON 数据对象
		msg:异步获取的节点数据，主要便于用户调试使用   
		return:null
 ****/
(function ($) {
	var zTree;
	$.fn.initTree = function (treeContentId, initTreeUrl, AsyncUrl) {
		var setting = {
			async : {
				enable : true,
				url : getUrl,
				type : "post",
				dataType : "json",
				contentType : "application/x-www-form-urlencoded;charset=UTF-8",
				autoParam : ["areaid"],
				dataFilter : filter,
			},
			view : {
				selectedMulti : false,
				showIcon : false
			},
			check : {
				enable : false,
				chkStyle : "checkbox",
				chkboxType : {
					"Y" : "s",
					"N" : "s"
				}
			},
			data : {
				key : {
					name : "name"
				},
				simpleData : {
					enable : true,
					pIdKey : "pid",
					idKey : "areaid"
				}
			},
			edit : {
				drag : {
					isCopy : false,
					isMove : false
				},
				enable : true,
				editNameSelectAll : true,
				showRemoveBtn : false,
				showRenameBtn : false
			},
			callback : {
				onClick : zTreeonClickEvent,
				onAsyncSuccess : zTreeOnAsyncSuccessEvent
			}
		};

		function getUrl(treeId, treeNode) {
			if (treeNode == undefined) {
				return initTreeUrl;
			} else {
				return AsyncUrl;
			}
		}
		function filter(treeId, parentNode, childNodes) {
			if (parentNode == undefined) {
				if (childNodes.data.pid == undefined) { //无pid，加载企业树，只有一级
					var data = childNodes.data;
					var treedata = [{
							"id" : "-1",
							"pId" : "-2",
							"name" : "全部",
							open : true
						}
					];
					data = $.makeArray(data);
					$.each(data, function (index, item) {
						item.pId = -1;
						item.isParent = false;
						treedata.push(item);
					});
				} else { 								//有pid，加载区域树，有多级
					var treedata = childNodes.data;
					treedata = $.makeArray(treedata);
					$.each(treedata, function (index, item) {
						item.open = true;
						item.isParent = true;
					});
				}
			} else {
				var treedata = childNodes.data.rows;
				treedata = $.makeArray(treedata);
				$.each(treedata, function (index, item) {
					item.isParent = true;
				});
			}
			return treedata;
		}

		$.fn.zTree.init($("#" + treeContentId), setting);
		zTree = $.fn.zTree.getZTreeObj(treeContentId);
		return zTree;
	};

	function zTreeonClickEvent(e, treeId, treeNode) {
		try {
			zTreeonClick(e, treeId, treeNode);
		} catch (e) {
			return;
		}
		return;
	}

	function zTreeOnAsyncSuccessEvent(event, treeId, treeNode, msg) {
		try {
			zTreeOnAsyncSuccess(event, treeId, treeNode, msg);
		} catch (e) {
			return;
		}
		return;
	}

	/*获取一个选中区域数据*/
	$.fn.initTree.getSlectedNode = function () {
		var nodes = zTree.getSelectedNodes();
		var treeNode = nodes[0]; //点击文本选中，优先级低
		if (nodes.length > 1) {
			layer.alert("请选择一个区域");
			return false;
		}
		if (nodes.length == 0) {
			layer.alert("请选择区域");
			return false;
		}
		if (nodes.length == 1) {
			return treeNode;
		}
	}

})(jQuery);