Question

我正在尝试使用C＃和javascript自学AJAX / Web服务。而且我认为我有一个名称空间问题，从我做过的谷歌判断来看。

首先，我的代码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;

namespace SimpleAJAX
{

    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [System.ComponentModel.ToolboxItem(false)] 
    [System.Web.Script.Services.ScriptService]
    public class WebService1 : System.Web.Services.WebService
    {

        [WebMethod]
        public string GetServerResponse(string callerName)
        {
            if (callerName == string.Empty)
                throw new Exception("Web Service Exception: invalid argument");

            return string.Format("Service responded to {0} at {1}", callerName, DateTime.Now.ToString());
        }

    }
}

网络服务。

<head id="Head1" runat="server">
    <title>Web Service call from client-side JavaScript</title>

    <script language="javascript" type="text/javascript">
        function SendRequest() {
            MySampleService.GetServerResponse(form1.MyTextBox.value, OnComplete, OnError, OnTimeOut);
        }

        function OnComplete(arg)
        {
            alert(arg);
        }

        function OnTimeOut(arg)
        {
            alert("timeOut has occured");
        }

        function OnError(arg)
        {
            alert("error has occured: " + arg._message);
        }
    </script>

</head>
<body>
    <form id="form1" runat="server">
        <asp:ScriptManager ID="ScriptManager1" runat="server">
            <Services>
                <asp:ServiceReference Path="~/WebServices/MySampleService.asmx" />
            </Services>
        </asp:ScriptManager>
        <div>
            <input type="text" value="" id="MyTextBox" />
            <input type="button" value="Send Request to the Web Service" id="RequestButton" 
                onclick="return SendRequest()" />
        </div>
    </form>
</body>

aspx页面。

取自（http://www.semenoff.dk/en/Code-Corner/ASP.Net.AJAX/WebService-From-JavaScript.aspx）

当我运行它时，我得到一个“'MySampleService'未定义”错误。我完全按照教程，但显然我仍然做错了。帮助不大？谢谢！

Answer 1

您需要在调用中包含您的命名空间和服务的实际类名：

SimpleAJAX.WebService1.GetServerResponse(form1.MyTextBox.value, OnComplete, OnError, OnTimeOut);

要查看ASP.NET为ScriptReference生成的JavaScript代理的确切结构，请在浏览器中打开WebService1.asmx/jsdebug。

Answer 2

试试这个

 function SendRequest() {
            SimpleAJAX.WebService1.GetServerResponse(form1.MyTextBox.value, OnComplete, OnError, OnTimeOut);
        }

Answer 3

您没有任何名为“MySampleService”的课程。您的类名为WebService1，因此您应该使用

SimpleAJAX.WebService1.GetServerResponse(form1.MyTextBox.value, OnComplete, OnError, OnTimeOut);

使用Javascript时C＃中的命名空间

3 个答案: