我已经设置了这个示例 Web 服务来调查我的错误的来源:
    namespace userControlPanel.webservice
{
    /// <summary>
    /// Summary description for WebService1
    /// </summary>
    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [System.ComponentModel.ToolboxItem(false)]
    // To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line. 
    [System.Web.Script.Services.ScriptService]
    public class WebService1 : System.Web.Services.WebService
    {
        [WebMethod]
        [ScriptMethod(UseHttpGet = true, ResponseFormat = ResponseFormat.Json)]
        public OutputData1 AjaxGetMore(InputData1 input)
        {
            return new OutputData1()
            {
                id = input.id,
                message = "it's work!",
                myInt = input.myInt + 1
            };
        }
    }
    public class OutputData1
    {
        public string id { get; set; }
        public string message { get; set; }
        public int myInt { get; set; }
    }
    public class InputData1
    {
        public string id { get; set; }
        public int myInt { get; set; }
    }
}
它基于此处的示例
所以我试图在这里获取结果:
http://localhost:57109/webservice/WebService1.asmx/AjaxGet?id=li1234
我得到了结果,
 System.IndexOutOfRangeException: Index was outside the bounds of the array
   at System.Web.Services.Protocols.HttpServerType..ctor(Type type)
   at System.Web.Services.Protocols.HttpServerProtocol.Initialize()
   at System.Web.Services.Protocols.ServerProtocolFactory.Create(Type type, HttpContext context, HttpRequest request, HttpResponse response, Boolean& abortProcessing)
所以,我认为它是 web.config 对吗?所以我实施了建议的设置(PS,我还创建了一个 HTTP-POST 网络服务,它工作得很好)
从 web.config:
<webServices>
      <protocols>
        <add name="HttpPost"/>
        <add name="HttpPostLocalhost"/>
        <add name="HttpGet"/>
      </protocols>
    </webServices>
    <httpHandlers>
      <add verb="*" path="*.asmx" type="System.Web.Script.Services.ScriptHandlerFactory" validate="false"/>
    </httpHandlers>
  </system.web>