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ajax 不错的应用_AJAX相关_

2023-05-25 241人已围观

简介 ajax 不错的应用_AJAX相关_

    style="cursor: pointer; text-decoration: underline"
    onclick="makeRequest('test.html')">
        Make a request

<p></p><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><script type="text/javascript" language="javascript"><P> var http_request = false; <P> function makeRequest(url) { <P> http_request = false; <P> if (window.XMLHttpRequest) { // Mozilla, Safari,... http_request = new XMLHttpRequest(); if (http_request.overrideMimeType) { http_request.overrideMimeType('text/xml'); } } else if (window.ActiveXObject) { // IE try { http_request = new ActiveXObject("Msxml2.XMLHTTP"); } catch (e) { try { http_request = new ActiveXObject("Microsoft.XMLHTTP"); } catch (e) {} } } <P> if (!http_request) { alert('Giving up :( Cannot create an XMLHTTP instance'); return false; } http_request.onreadystatechange = alertContents; http_request.open('GET', url, true); http_request.send(null); <P> } <P> function alertContents() { <P> if (http_request.readyState == 4) { if (http_request.status == 200) { var xmldoc = http_request.responseXML; var root_node = xmldoc.getElementsByTagName('root').item(0); alert(root_node.firstChild.data); } else { alert('There was a problem with the request.'); } } <P> } </script><span style="cursor: pointer; text-decoration: underline" onclick="makeRequest('test.xml')"> Make a request </span><p></p>

[Ctrl+A 全选注:引入外部Js需再刷新一下页面才能执行]

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