看一下为什么网页上为什么都没有显示出来
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@ include file="/jsp/include/common.jsp"%>
<%@ page import="org.json.JSONArray"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>爱乐游订餐系统</title>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<link rel="stylesheet" href="css/zTreeStyle/zTreeStyle.css" type="text/css">
<script type="text/javascript" src="js/jquery-latest.min.js"></script>
<script type="text/javascript" src="js/jquery.ztree.core-3.3.min.js"></script>
<script type="text/javascript">
var setting = {
check:{
enable:true
},
data: {
simpleData: {
enable: true
}
}
};
var zNodes =[
{ id:1, pId:0, name:"随意勾选 1", open:false},
{ id:11, pId:1, name:"随意勾选 1-1", open:true},
{ id:111, pId:11, name:"随意勾选 1-1-1"},
{ id:112, pId:11, name:"随意勾选 1-1-2"},
{ id:12, pId:1, name:"随意勾选 1-2", open:true},
{ id:121, pId:12, name:"随意勾选 1-2-1"},
{ id:122, pId:12, name:"随意勾选 1-2-2"},
{ id:2, pId:0, name:"随意勾选 2", open:false},
{ id:21, pId:2, name:"随意勾选 2-1"},
{ id:22, pId:2, name:"随意勾选 2-2", open:true},
{ id:221, pId:22, name:"随意勾选 2-2-1"},
{ id:222, pId:22, name:"随意勾选 2-2-2"},
{ id:23, pId:2, name:"随意勾选 2-13"}
];
$(document).ready(function(){
alert("----");
$.fn.zTree.init($("#treeDemo"), setting, zNodes);
});
</script>
</head>
<body>
<div class="content_wrap">
<div class="zTreeDemoBackground left">
<ul id="treeDemo" class="ztree"></ul>
</div>
</div>
</body>
</html>
------解决方案--------------------<script type="text/javascript"&