ASP.NET中的REST WCF服务和会话

我一直在尝试从WCF REST服务中访问asp.net应用程序的当前会话对象.

根本没有成功.从服务访问的会话对象与aspx页面中的对象不同.

所以,这是我的问题：是否可以通过HttpContext.Current.Session访问REST WCF服务中的当前会话？

代码有以下几点：

[AspNetCompatibilityRequirements
(RequirementsMode = 
AspNetCompatibilityRequirementsMode.Allowed)] // I have also tried Required
public class DataService : IDataService

在web.config中：

<system.serviceModel>
  <behaviors>
   <endpointBehaviors>
    <behavior name="ClosedRoom.DataServiceBehavior">
     <enableWebScript />
    </behavior>
   </endpointBehaviors>
  </behaviors>
  <serviceHostingEnvironment aspNetCompatibilityEnabled="true" >
  <baseAddressPrefixFilters>
        <add prefix="http://localhost:63399"/>
      </baseAddressPrefixFilters>
    </serviceHostingEnvironment>

  <services>
    <service name="ClosedRoom.DataService">
      <endpoint address="" behaviorConfiguration="ClosedRoom.DataServiceBehavior"
        binding="webHttpBinding" contract="ClosedRoom.IDataService" />
    </service>
  </services>
</system.serviceModel>

谢谢,