How do I call asp.net 3.5 soap xml based webservice in javascript or jquery?

Question

I am new in jquery and trying to consume asp.net 3.5 made webservice in Jquery but i don't know why i can't use it. all the examples that i found over the internet are same as i'm doing, but i don't know whats happening to the code,

can anybody please help me ?

here is my javascript code,

var soapMessage =
    '<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/"> \
    <soap:Body> \
    <test xmlns="http://tempuri.org/"> \
    <param>this is a test parameter</param> \
    </test> \
    </soap:Body> \
    </soap:Envelope>';

    $.ajax({
        url: "http://localhost:50575/Service1.asmx?op=test",
        type: "POST",
        dataType: "xml",
        data: soapMessage,
        complete: hi,
        error: function (a, b, c) {
            alert("error");
        },
        contentType: "text/xml; charset=\"utf-8\""
    });

    function hi(xmlHttpRequest, status) {

        alert($(xmlHttpRequest.responseText).text());

        alert($(xmlHttpRequest.responseXML).find('Mymessage').text());

    } 

and here is server side code

[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
[System.Web.Script.Services.ScriptService]
public class Service1 : System.Web.Services.WebService
{


    [WebMethod]
    public message test(string param)
    {
        message mymsg = new message();
        mymsg.head = "message head";
        mymsg.Mymessage = "Test string with param " + param;
        return mymsg;
    }

Answer 1

The first object passed to the error handler should contain some useful information. Try to "expand" a in whatever debugging tool you're using. Don't just 'alert' its value.

Specifically, look for a.status and a.responseText . This should give you a good idea of what's going on.

Answer 2

我建议您尝试一下Fiddler ，这是一个出色的Web调试工具，应该可以帮助您发现问题。