用Ajax讀取XML格式的數(shù)據(jù)

2024-09-01 08:29:53

字體：大中小

供稿：網(wǎng)友

代碼如下:<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<title>Ajax Hello World</title>
<script type="text/javascript">
var xmlHttp;

function createXMLHttpRequest(){
    if(window.ActiveXObject){
        xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
    }
    else if(window.XMLHttpRequest){
        xmlHttp = new XMLHttpRequest();
    }
}

function startRequest(){
    createXMLHttpRequest();
    try{
        xmlHttp.onreadystatechange = handleStateChange;
        xmlHttp.open("GET", "data.xml", true);
        xmlHttp.send(null);
    }catch(exception){
        alert("您要訪問的資源不存在!");
    }
}

function handleStateChange(){
    if(xmlHttp.readyState == 4){
        if (xmlHttp.status == 200 || xmlHttp.status == 0){
            // 取得XML的DOM對象
            var xmlDOM = xmlHttp.responseXML;
            // 取得XML文檔的根
            var root = xmlDOM.documentElement;
            try
            {
                // 取得<info>結(jié)果
                var info = root.getElementsByTagName('info');
                // 顯示返回結(jié)果
                alert("responseXML's value: " + info[0].firstChild.data);