|
|
復(fù)制代碼 代碼如下:
<!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" >
<head>
<title>js操作Xml增刪改查(IE下)</title>
<script type="text/Javascript"><!--
/*等解決的問(wèn)題:
1.xpath到底是定位到哪一層,怎樣定位到比如root這一級(jí)還是person或name這一級(jí).
*/
var xmlDoc;
var rootNode; //根結(jié)點(diǎn)
//裝載Xml文檔
function loadXml(){
try{
xmlDoc = new ActiveXObject("Microsoft.XMLDOM");
xmlDoc.async=false;//關(guān)閉異步加載
xmlDoc.load("XmlFile.xml");//load是從文件,loadXML是從字符串.
rootNode = xmlDoc.documentElement;
}catch(e) {alert(e.message)}
}
//顯示內(nèi)存中的Xml文檔
function outXml(){
var divXml=document.getElementById("divXml");
divXml.innerHTML=xmlDoc.xml;//顯示xml內(nèi)容,技巧是加個(gè)xml后綴.?
alert(xmlDoc.xml);
}
//增
function addXml(){
//葉子結(jié)點(diǎn),設(shè)置text值
var newName = xmlDoc.createElement("name");
newName.text = "crane";
var newGender = xmlDoc.createElement("gender");
newGender.text = "female";
//父級(jí)結(jié)點(diǎn),用appendChild(childNode);
var newPerson = xmlDoc.createElement("person");
//設(shè)置屬性id
newPerson.setAttribute("id","2");
newPerson.appendChild(newName);
newPerson.appendChild(newGender);
//增加到根結(jié)點(diǎn)
rootNode.appendChild(newPerson);
alert(xmlDoc.xml);
}
//刪
function deleteXml(){
//先找到結(jié)點(diǎn)
var singleNode = xmlDoc.selectSingleNode("/root/person[name='tree']");
//找到父級(jí)再刪除
singleNode.parentNode.removeChild(singleNode);
alert(xmlDoc.xml);
}
//改
function updateXml(){
var singleNode = xmlDoc.selectSingleNode("/root/person[name='crane']");
singleNode.childNodes[0].text = "updated";
alert(xmlDoc.xml);
}
//查
function queryXml(){
//alert(rootNode.nodeName);//節(jié)點(diǎn)名
//alert(rootNode.text);//節(jié)點(diǎn)里的全部?jī)?nèi)容
//xPath選擇節(jié)點(diǎn)數(shù)組
//var nodes = xmlDoc.selectNodes("/root/person");
//alert(nodes[0].text);
//選擇單個(gè)節(jié)點(diǎn)
/*總結(jié)
1."/root/person[name='tree']"等同于"/root[person/name='tree']"即找出來(lái)的是person結(jié)點(diǎn)
*/
var singleNode = xmlDoc.selectSingleNode("/root/person[gender='female']");//這里的值需要加引號(hào)
alert(singleNode.text);
alert(singleNode.getAttribute("id"));
//測(cè)試xpath定位
var sglNode = xmlDoc.selectSingleNode("/root[person/gender='male']");//這里定位不明確.再研究.
alert(sglNode.text);
//顯示全部xml文檔
//alert(xmlDoc.xml);
}
// --></script>
</head>
<body>
<div id="divXml"></div>
<input type="button" value="load" onclick="loadXml();" />
<input type="button" value="show" onclick="outXml();" />
<input type="button" value="add" onclick="addXml();" />
<input type="button" value="delete" onclick="deleteXml();" />
<input type="button" value="update" onclick="updateXml();" />
<input type="button" value="query" onclick="queryXml();" />
</body>
</html>
Xml文件：
復(fù)制代碼 代碼如下:
<?xml version="1.0" encoding="utf-8" ?>
<root>
<person id="1">
<name>tree</name>
<gender>male</gender>
</person>
</root>
JavaScript技術(shù)：javascript Xml增刪改查(IE下)操作實(shí)現(xiàn)代碼，轉(zhuǎn)載需保留來(lái)源！
鄭重聲明：本文版權(quán)歸原作者所有，轉(zhuǎn)載文章僅為傳播更多信息之目的，如作者信息標(biāo)記有誤，請(qǐng)第一時(shí)間聯(lián)系我們修改或刪除，多謝。
