?? iexmlhttprequestexample3.htm
字號:
<html>
<head>
<title>XML HTTP Request Example</title>
<script type="text/javascript">
function createXMLHTTP() {
var arrSignatures = ["MSXML2.XMLHTTP.5.0", "MSXML2.XMLHTTP.4.0",
"MSXML2.XMLHTTP.3.0", "MSXML2.XMLHTTP",
"Microsoft.XMLHTTP"];
for (var i=0; i < arrSignatures.length; i++) {
try {
var oRequest = new ActiveXObject(arrSignatures[i]);
return oRequest;
} catch (oError) {
//ignore
}
}
throw new Error("MSXML is not installed on your system.");
}
function getServerInfo() {
var oRequest = createXMLHTTP();
oRequest.open("get", "example.txt", true);
oRequest.onreadystatechange = function () {
if (oRequest.readyState == 4) {
alert("Status is " + oRequest.status + " (" + oRequest.statusText + ")");
alert("Response text is: " + oRequest.responseText);
}
}
oRequest.send(null);
}
</script>
</head>
<body>
<p>Click the button to make a call to the server using an asynchronous XML HTTP request.</p>
<input type="button" onclick="getServerInfo()" value="Get Server info" />
</body>
</html>
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