ajax 不错的应用

ttx9n · 发表于 2006-7-4 00:00:00

var http_request = false;

function makeRequest(url) {

http_request = false;

        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) {}
            }
        }

        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);

}

function alertContents() {

        if (http_request.readyState == 4) {
            if (http_request.status == 200) {
                alert(http_request.responseText);
            } else {
                alert('There was a problem with the request.');
            }
        }

}
</script>

 Make a request

 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <script type="text/javascript" language="javascript"> var http_request = false; function makeRequest(url) { http_request = false; 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) {} } } 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); } function alertContents() { 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.'); } } } </script> </head> <body> Make a request </body> </html> 
[Ctrl+A 全选注:如需引入外部Js需刷新才能执行]

locopy · 发表于 2023-1-26 18:50:30

老衲笑纳了

溪谷小兵 · 发表于 2023-9-17 08:54:04

人都不在了啊啊

64000928 · 发表于 2024-3-10 15:14:26

很不错的源码论坛

回复用户1 · 发表于 2024-8-1 06:51:40

哦哦哦哦哦哦哦哦哦

czoz5y · 发表于 2024-8-10 14:58:09

1312315458748777

plvo189 · 发表于 2024-8-31 05:57:17

很好，谢谢分享

tgdf · 发表于 2024-10-3 19:26:04

为全额万千瓦

r8st9 · 发表于 2024-10-4 07:52:06

人都不在了啊啊

平平安安 · 发表于 2024-10-12 10:11:22

抽根烟，下来看看再说

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