此处 是默认的按钮：

var setting = {				async: {            enable: true,            url:getPath()+"/manager/buildinfo/typeTree",            dataFilter: null        },        		view: {			addHoverDom: addHoverDom,//当用户鼠标移动到节点上时,显示用户自定义控件,显示隐藏状态同zTree内部的编辑，删除按钮			removeHoverDom: removeHoverDom//移出节点时,显示隐藏状态同zTree内部的编辑、删除按钮		},		data: {			simpleData: {				enable: true			}		}	};	//鼠标在节点获取焦点显示添加按钮	function addHoverDom(treeId, treeNode) {		var sObj = $("#" + treeNode.tId + "_span");		if (treeNode.editNameFlag || $("#addBtn_"+treeNode.tId).length>0){			return;		}		if (treeNode.editNameFlag || $("#delBtn_"+treeNode.tId).length>0){			return;		}		if (treeNode.editNameFlag || $("#updBtn_"+treeNode.tId).length>0){			return;		} 		//删除		if(treeNode.isShowDeleteBut){			var delStr = "删除";			sObj.after(delStr);		}		//修改		if(treeNode.isShowUpdateBut){			var updStr = "修改";			sObj.after(updStr);		}		//添加		if(treeNode.isShowInsertBut){			var addStr = "添加";			sObj.after(addStr);		}	};			//隐藏按钮	function removeHoverDom(treeId, treeNode) {		$("#addBtn_"+treeNode.tId).unbind().remove();		$("#updBtn_"+treeNode.tId).unbind().remove();		$("#delBtn_"+treeNode.tId).unbind().remove();	};	//添加	function addNode(id,name){		var url = getPath()+"/manager/buildinfo/toAddJsp?structureid="+id;		location.href = url;	}	//修改	function updateNode(id){		var url = getPath()+"/manager/buildinfo/toUpdateJsp";		location.href = url+"?id="+id+"&isAdd=2";	}	//删除	function deleteNode(id,name){		layer.confirm('您确定要删除 -->'+ name + "吗?", function(){ 			var url = getPath()+"/manager/buildinfo/deleteBuildInfo";			var param = {"id":id,"time" : Math.random()};			$.post(url,param,function(data){				if("error" == data){					layer.alert('对不起，你所删除的建筑信息,再被其他地方所使用,您不能删除!', 3);					return false;				}else if("success" == data){					layer.msg('删除成功!', 2, -1);					location.href =getPath()+ "/manager/peizhiManager/buildinfo/buildinfoTree.jsp";				}else if("syncError" == data){					layer.msg('删除操作失败!', 2, -1);				}			});		});	}	$(document).ready(function(){		//加载树结构数据		$.fn.zTree.init($("#treeDemo"), setting);	});

样式如下：

数据格式 JSON

[	{"name":"四川大学","id":"1a","pId":"0a","open":false,"checked":true,"isShowDeleteBut":true,"isShowUpdateBut":true,"isShowInsertBut":true,"isBuildInfoNodeId":false,"isBuildStructureId":false},	{"name":"四川大学南校区","id":"2a","pId":"1a","open":false,"checked":false,"isShowDeleteBut":true,"isShowUpdateBut":true,"isShowInsertBut":true,"isBuildInfoNodeId":false,"isBuildStructureId":false},	{"name":"电子科技大学","id":"3a","pId":"0a","open":false,"checked":false,"isShowDeleteBut":true,"isShowUpdateBut":true,"isShowInsertBut":true,"isBuildInfoNodeId":false,"isBuildStructureId":false},	{"name":"电子科技大学北校区","id":"4a","pId":"3a","open":false,"checked":false,"isShowDeleteBut":true,"isShowUpdateBut":true,"isShowInsertBut":true,"isBuildInfoNodeId":false,"isBuildStructureId":false},	{"name":"成都财经大学","id":"5a","pId":"0a","open":false,"checked":false,"isShowDeleteBut":true,"isShowUpdateBut":true,"isShowInsertBut":true,"isBuildInfoNodeId":false,"isBuildStructureId":false},	{"name":"成都财经大学南校区","id":"6a","pId":"5a","open":false,"checked":false,"isShowDeleteBut":true,"isShowUpdateBut":true,"isShowInsertBut":true,"isBuildInfoNodeId":false,"isBuildStructureId":false}]

数据自己在后台直接通过一个 对象封装就OK了

import java.util.List;/** * 站点树，节点对象 * @author ibm * */public class ZTreeNode {		private String name;	private String id;	private String pId;	private List
    
      childList;	private String icon;		//是否是打开状态 默认不打开	private boolean open = false;		//判断是否选中	private boolean checked = false;	//判断是否是可选的 如果为 true 则此节点不可选	private boolean nocheck = false;		//控制是否显示 增删改按钮  默认都是不显示	private boolean isShowDeleteBut = false;	private boolean isShowUpdateBut = false;	private boolean isShowInsertBut = false;		//判断是否是建筑信息节点Id	private boolean isBuildInfoNodeId;	//判断是否是建筑结构节点Id	private boolean isBuildStructureId;			public String getId() {		return id;	}	public void setId(String id) {		this.id = id;	}	public String getpId() {		return pId;	}	public void setpId(String pId) {		this.pId = pId;	}	public String getName() {		return name;	}	public void setName(String name) {		this.name = name;	}	public List
     
       getChildList() {		return childList;	}	public void setChildList(List
      
        childList) {		this.childList = childList;	}	public String getIcon() {		return icon;	}	public void setIcon(String icon) {		this.icon = icon;	}	public boolean isOpen() {		return open;	}	public void setOpen(boolean open) {		this.open = open;	}	public boolean isShowDeleteBut() {		return isShowDeleteBut;	}	public void setShowDeleteBut(boolean isShowDeleteBut) {		this.isShowDeleteBut = isShowDeleteBut;	}	public boolean isShowUpdateBut() {		return isShowUpdateBut;	}	public void setShowUpdateBut(boolean isShowUpdateBut) {		this.isShowUpdateBut = isShowUpdateBut;	}	public boolean isShowInsertBut() {		return isShowInsertBut;	}	public void setShowInsertBut(boolean isShowInsertBut) {		this.isShowInsertBut = isShowInsertBut;	}	public boolean isBuildInfoNodeId() {		return isBuildInfoNodeId;	}	public void setBuildInfoNodeId(boolean isBuildInfoNodeId) {		this.isBuildInfoNodeId = isBuildInfoNodeId;	}	public boolean isBuildStructureId() {		return isBuildStructureId;	}	public boolean isChecked() {		return checked;	}	public void setChecked(boolean checked) {		this.checked = checked;	}	public void setBuildStructureId(boolean isBuildStructureId) {		this.isBuildStructureId = isBuildStructureId;	}	public boolean isNocheck() {		return nocheck;	}	public void setNocheck(boolean nocheck) {		this.nocheck = nocheck;	}}
      
     
    

以上直接是操作数据库的  比较简单的实现。