I am new to AJAX and am trying to write my first AJAX program. I am trying to reach out and connect with a server. I "should" be getting some XML data sent back to me but my responseXML remains null. Below is the code I am using and I will also print out what I am hoping to get back. I am able to create the XMLHttpRequest and my readyState does reach 4. My status is 0 but I expected that.
The code (and I have included some document.writes just to help me debug) is:
Code:
<html>
<head>
<script type="text/javascript">
function loadXMLDoc()
{
document.write(" In function");
var xmlhttp;
if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
document.write(" created request ");
}
else
{// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4)
{
document.write(xmlhttp.responseText);
}
}
xmlhttp.open("GET","http://localhost:8080/vlrestapi/v1.0/system",true);
xmlhttp.send();
}
</script>
</head>
<body>
<h2>AJAX</h2>
<button type="button" onclick="loadXMLDoc()">Request data</button>
</body>
</html>
When I put the "http://localhost:8080/vlrestapi/v1.0/system" into a browser, this is what I get back and what I hope to pull back with my AJAX program but it is not happening:
Code:
<?xml version="1.0" encoding="UTF-8" ?>
- <VLResponse>
<content class="string">VisuaLinks REST API | Host: nb-lhunt/192.168.183.1 | Time: Wed Feb 09 14:38:56 EST 2011</content>
</VLResponse>
Any help anyone could give me would be greatly appreciated.
Thank you