服务器响应的状态码出问题？

[zhuminyu]

<script language="javascript">
var http_request = false;
function con()
{
makeRequest("http://localhost/WebService1/Service1.asmx/sum");
}
function alertContents()
{
alert(http_request.readyState);
if (http_request.readyState == 4)
{
alert(http_request.status);
if (http_request.status == 200)
{
var str=http_request.responseXML.getElementsByTagName("int")[0].firstChild.data;
alert(str);
}
else
{
alert('There was a problem with the request.');
}
}
}
function makeRequest(url)
{
http_request = false;
if (window.XMLHttpRequest)
{
http_request = new XMLHttpRequest();
if (http_request.overrideMimeType)
{
http_request.overrideMimeType("text/xml");
}
} else if (window.ActiveXObject)
{
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("POST", url, true);
http_request.send("a=1&b=1");
}
</script>
其中的http_request.status的值竟然会是500,处理服务器响应的，应该是200才对，是哪里有问题导致这样的？

[chaircat]

500表示服务器内部错误...
你检查一下你提交的URL...看看是否会导致服务器出错...

[zhuminyu]

谢谢