<%@ page language="java" import="java.util.*" pageEncoding="GB2312"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>JavaScript</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
<script type="text/javascript">
window.onload = function(){
//獲得City節點的所有子節點
var cityNode = document.getElementById("City");
//cityNode.childNodes.length擷取子節點的長度，不太實用
alert(cityNode.childNodes.length);
//擷取City所有li子節點
var cityLiNode = cityNode.getElementsByTagName("li");
//li子節點數量
alert(cityLiNode.length);
//獲得第一個節點對象
alert(cityNode.firstChild);
//獲得最後一個節點對象
alert(cityNode.lastChild);
}
</script>
</head>
<body>
<p>你喜歡哪個城市</p>
<ul id="City">
<li id="bj" name="beijing">北京</li>
<li id="Sh">上海</li>
<li>廣州</li>
<li>深圳</li>
</ul>
<br/>
<p>你喜歡哪款單機遊戲</p>
<ul id="game">
<li>反恐精英</li>
<li>魔獸</li>
<li>紅警</li>
<li>實況</li>
</ul>
<br/>
<br/>
Name：<input id="name" type="text" name="username" value="LoveCoffee"/>
</body>
</html> 說明
<ul id="City">
<li id="bj" name="beijing">北京</li>
<li id="Sh">上海</li>
<li>廣州</li>
<li>深圳</li>
</ul> 為什麼有九個節點呢？
解釋:
如圖所示：
這篇文章要說明的是如何操作圖檔上綠色的Text節點
看如下代碼:
<%@ page language="java" import="java.util.*" pageEncoding="GB2312"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>JavaScript</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
<script type="text/javascript">
window.onload = function(){
var cityNode = document.getElementById("City");
//九個
alert(cityNode.childNodes.length);
//擷取City所有li子節點
var cityLiNode = cityNode.getElementsByTagName("li");
//4個
alert(cityLiNode.length);
alert(cityNode.firstChild);
alert(cityNode.lastChild);
//擷取bj節點的所有子節點
var bjNode = document.getElementById("bj");
//獲得bj節點子節點的第一個節點（可知為Text節點)
var bjText = bjNode.firstChild;
//讀取文本節點的值
alert(bjText.nodeValue);
//修改文本節點大的值
bjText.nodeValue = "南昌";
}
</script>
</head>
<body>
<p>你喜歡哪個城市</p>
<ul id="City">
<li id="bj" name="beijing">北京</li>
<li id="Sh">上海</li>
<li>廣州</li>
<li>深圳</li>
</ul>
<br/>
<p>你喜歡哪款單機遊戲</p>
<ul id="game">
<li>反恐精英</li>
<li>魔獸</li>
<li>紅警</li>
<li>實況</li>
</ul>
<br/>
<br/>
Name：<input id="name" type="text" name="username" value="LoveCoffee"/>
</body>
</html> ![Dom4j讀取Xml檔案前言準備工作結果結束語[圖]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)