WCF WSDL不显示任何操作/方法

Question

我有一个当前在本地运行的简单WCF服务：

http://localhost:63951/WcfService.svc

这显示默认网站。当我将？wsdl附加到URL时出现问题：

http://localhost:63951/WcfService.svc?wsdl

与我的预期不同，此WDSL文档未显示任何操作/方法！

IWcfService：

using System.Collections.Generic;
using Ant.Domain.Model.DTO;
using System.ServiceModel;
using System.ServiceModel.Web;

namespace Ant.Application.Service
{
    public interface IApplicationService
    {
        FileDTO GetFile(FileDTO fileDTO);
    }
}

WcfService：

using System.ServiceModel;
using System.ServiceModel.Activation;
using Ant.Application.Service;
using Ant.Domain.Model.DTO;
using Ant.WcfService.Utils;


namespace Ant.WcfService
{
    [ServiceContract(Namespace = "")]
    [ServiceBehavior(IncludeExceptionDetailInFaults = true)]
    [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
    public class WcfService : ServiceWExceptionManager 
    {
        ApplicationService ApplicationSevice = new ApplicationService();

        [OperationContract]
        public FileDTO GetFile(FileDTO fileDTO)
        {
            return this.Process(() =>
            {
                return this.ApplicationSevice.GetFile(fileDTO);
            });
        }
    }
}

的Web.config：

<?xml version="1.0"?>
<configuration>

  <system.web>
    <compilation debug="true" targetFramework="4.0" />
  </system.web>
  <system.serviceModel>
    <services>
      <service name="Ant.WcfService.WcfService">
        <endpoint address="" behaviorConfiguration="Ant.WcfService.WcfServiceAspNetAjaxBehavior"
          binding="webHttpBinding" contract="Ant.WcfService.WcfService" />
      </service>
    </services>
    <behaviors>
      <endpointBehaviors>
        <behavior name="Ant.WcfService.WcfServiceAspNetAjaxBehavior">
          <enableWebScript />
        </behavior>
      </endpointBehaviors>
      <serviceBehaviors>
        <behavior name="">
          <serviceMetadata httpGetEnabled="true" />
          <serviceDebug includeExceptionDetailInFaults="false" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <serviceHostingEnvironment aspNetCompatibilityEnabled="true"
      multipleSiteBindingsEnabled="true" />
  </system.serviceModel>
 <system.webServer>
    <modules runAllManagedModulesForAllRequests="true"/>
  </system.webServer>

</configuration>

什么可能导致WCF .svc服务不在WSDL文档中显示任何操作？

可能这是一个愚蠢的问题但是，使用谷歌，我找不到答案。 英语也不是我的母语;请原谅输入错误。