jsp頁面zTree的簡單應用
阿新 • • 發佈:2018-08-09
3.2 pen control ans note isn getproto xmlns ztree 1. jsp頁面
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <%@ page contentType="text/html;charset=UTF-8"%> <% if (request.getProtocol().compareTo("HTTP/1.0") == 0) response.setHeader("Pragma", "no-cache"); if (request.getProtocol().compareTo("HTTP/1.1") == 0) response.setHeader("Cache-Control", "no-cache"); response.setDateHeader("Expires", 0); %> <head> <title> ZTREE DEMO - Simple Data</title> <link rel="stylesheet" href="http://pannijingling.blog.163.com/blog/文件夾路徑/demo.css" type="text/css"></link> <link rel="stylesheet" href="http://pannijingling.blog.163.com/blog/文件夾路徑/zTreeStyle.css" type="text/css"></link> <script type="text/javascript" src="http://pannijingling.blog.163.com/blog/文件夾路徑/jquery-1.4.4.min.js"></script> <script type="text/javascript" src="http://pannijingling.blog.163.com/blog/文件夾路徑/jquery.ztree.core-3.1.js"></script> <SCRIPT type="text/javascript"> <!-- var setting = { data: { simpleData: { enable: true } } }; var zNodes =[ //這裏只需要將後臺傳出的list使用jstl循環輸出 <c:forEach items="${treelist}" var="tree" varStatus="vs"> ${tree} </c:forEach> ]; $(document).ready(function(){ //“treeDemo”是ul的ID $.fn.zTree.init($("#treeDemo"), setting, zNodes); }); //--> </SCRIPT> </head> <body"> <div> <ul id="treeDemo" class="ztree"></ul> </div> </body> </HTML>
3.2.java文件getTreelist()方法
public List getTreelist(){ //設定樹菜單的根 String ztree = "{ id:00, pId:0, name:‘要顯示的根名,也可以從數據庫取出‘, click:\"parent.setIframesrc()\" , open:true },"; List ztreeList = new ArrayList(); //從數據庫獲取所有菜單的信息 List menuList = this.getMenuList(); if(Collections.isNotEmpty(menuList)){ ztreeList.add(ztree); for (int i = 0; i < menuList.size(); i++) { Menu menu = (Menu) menuList.get(i); //按照一定的格式拼接字符串,最後返回到jsp頁面 ztree = "{ id:"+menu.getMenuid()+", pId:"+menu.getParentid()+", name:\""+menu.getMenuname()+"\"," + "click:\"parent.setIframesrc(‘"+menu.getMenuid()+"‘)\"},"; if (i+1 == menuList.size()) { ztree = ztree.substring(0, ztree.lastIndexOf(",")); } ztreeList.add(ztree); } } return ztreeList; }
3.然後從Action調用getTreelist(),並用"tree"的鍵值返回jsp頁面,從jsp頁面接收展示即可。
jsp頁面zTree的簡單應用