代码
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!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 runat="server">
<title></title>
</head>
<body>
<script type="text/javascript" language="javascript">
var xmlHttp = null; //define the xmlHttpRequest
window.onload = function() {
loadXmlHttp();
sendRequest("Welcome.htm");
}
//返回不同浏览器的XMLHttpRequest对象
function loadXmlHttp() {
if (window.XMLHttpRequest) {
xmlHttp = new XMLHttpRequest();
} else if (window.ActiveXObject) {
try {
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP"); //IE6,IE5
} catch (e) { }
}
}
//发送请求
function sendRequest(url) {
if (xmlHttp) {
xmlHttp.open("GET", url, true);
xmlHttp.onreadystatechange = onCallback; //function
xmlHttp.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
xmlHttp.send(null);
}
}
function onCallback() {
if (xmlHttp.readyState == 4) {
if (xmlHttp.status == 200) {
var r = document.getElementById('results');
r.innerHTML = xmlHttp.responseText;
} else {
alert('Error:'+xmlHttp.status);
}
}
}
</script>
<form id="form1" runat="server">
<div>
<span id="results"></span>
</div>
</form>
</body>
</html>
<!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 runat="server">
<title></title>
</head>
<body>
<script type="text/javascript" language="javascript">
var xmlHttp = null; //define the xmlHttpRequest
window.onload = function() {
loadXmlHttp();
sendRequest("Welcome.htm");
}
//返回不同浏览器的XMLHttpRequest对象
function loadXmlHttp() {
if (window.XMLHttpRequest) {
xmlHttp = new XMLHttpRequest();
} else if (window.ActiveXObject) {
try {
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP"); //IE6,IE5
} catch (e) { }
}
}
//发送请求
function sendRequest(url) {
if (xmlHttp) {
xmlHttp.open("GET", url, true);
xmlHttp.onreadystatechange = onCallback; //function
xmlHttp.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
xmlHttp.send(null);
}
}
function onCallback() {
if (xmlHttp.readyState == 4) {
if (xmlHttp.status == 200) {
var r = document.getElementById('results');
r.innerHTML = xmlHttp.responseText;
} else {
alert('Error:'+xmlHttp.status);
}
}
}
</script>
<form id="form1" runat="server">
<div>
<span id="results"></span>
</div>
</form>
</body>
</html>