The common function of JS calling WebService

Call:

Requestbypost (Method,variable,value,url,_namespace)

Method:webservice's method name

Variable:webservice the variable array group of the method

An array of the values of the variables of the Value:webservice method

URL: The requested address (ASMX file address)

The _namespace:webservice namespace

<script language= "javascript" type= "Text/javascript" >
<! cdata[

Define
var xmlhttp;
var value=new Array ();
var variable=new Array ();

Show Response MSG.
function Handlestatechange ()
{
var H=document.getelementbyid ("Label1");
if (xmlhttp.readystate==4)
{
if (xmlhttp.status==200)
{
alert (Xmlhttp.responsetext);
H.innerhtml=xmlhttp.responsetext;
H.innerhtml=xmlhttp.responsexml;
}
else if (xmlhttp.status==404)
{
H.innerhtml= "<br> cannot find the requested server resource! ";
}
}
else if (xmlhttp.readystate==0)
{
H.innerhtml= "<br> not initialized! ";
}
else if (xmlhttp.readystate==1)
{
H.innerhtml= "<br> Loading ...! ";
}
else if (xmlhttp.readystate==2)
{
H.innerhtml= "<br> has been loaded complete! ";
}
else if (xmlhttp.readystate==3)
{
H.innerhtml= "<br> is interacting with the server";
}
Else
{
H.innerhtml=xmlhttp.responsexml;
}

}

Get Request Data ' s length
function Getlen (str)
{
var bytescount=0;
for (var i = 0; i < str.length; i++)
{
var c = Str.charat (i);
if (/^[\u0000-\u00ff]$/.test (c))//Match Double Byte
{
Bytescount + 1;
}
Else
{
Bytescount + 2;
}
}
return bytescount;

}

Create XMLHttpRequest Object
function Createxmlhttprequest ()
{

if (window. ActiveXObject)
{
Xmlhttp=new ActiveXObject ("Microsoft.XMLHTTP");
}
else if (window. Xmlhttprequst)
{
Xmlhttp=new XMLHttpRequest ();
}
}

Send Request by HTTP POST

function Requestbypost (method,variable,value,url,_namespace)
{
Createxmlhttprequest ();
var data;
data = ' <?xml version= ' 1.0 ' encoding= ' utf-8 '?> ';
data = Data + ' <soap:envelope xmlns:xsi= ' http://www.w3.org/2001/XMLSchema-instance ' xmlns:xsd= ' http://www.w3.org/ 2001/xmlschema "xmlns:soap=" http://schemas.xmlsoap.org/soap/envelope/">";
data = data + ' <soap:Body> ';
data = data + ' < ' +method+ ' xmlns= ' ' +_namespace+ ' ' > ';
for (Var i=0;i<variable.length;i++)
{
data = data + ' < ' +variable[i]+ ' > ' +value[i]+ ' </' +variable[i]+ ' > ';

}
data = data + ' </' +method+ ' > ';
data = data + ' </soap:Body> ';
data = data + ' </soap:Envelope> ';

Xmlhttp.onreadystatechange=handlestatechange;
xmlHTTP. Open ("POST", url, True);
xmlHTTP. setRequestHeader ("Content-type", "Text/xml; Charset=utf-8");
xmlHTTP. setRequestHeader ("Content-length", Getlen (data));
xmlHTTP. setRequestHeader ("SOAPAction", _namespace+method);
xmlHTTP. Send (data);
alert (data);
}

callhelloworld!
function Sayhello_onclick () {
Alert (document.getElementById (' YourName '). Value);
Requestbypost ("HelloWorld", New Array ("MSG"), new Array (document.getElementById (' YourName '). Value), " Webservice.asmx "," localhost/");
}
Weatherreport Test:
function Button2_onclick () {
Requestbypost ("Getweatherbycityname", New Array ("Thecityname"), new Array (document.getElementById (' CityName '). Value), "Http://www.webxml.com.cn/WebServices/WeatherWebService.asmx", "http://WebXml.com.cn/");
}

]]>
</script>
////////////////////////////////
Sixi. Let it be.../////
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