REST WCF service and Session‏ in ASP.NET

问题:

Please help if you can.

I have been trying to access the current session object of an asp.net application from within a WCF REST service.

There has been no success at all. the session object accessed from the service is not the same one in the aspx pages.

So, here is my question: Is it possible to access the current session in a REST WCF service through HttpContext.Current.Session ?

The code has the following points:

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

in web.config:

<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>

Thank you,

回答1:

In order for a session to be rehidrated, you need to supply a key. In a normal asp.net application that key is supplied by user either via cookie or url parameter.

How are you planning to acquire that key from the REST client? How those clients get that key initially after the authentication? Where they store the key?

This is why most of the REST based services take a api access key and also another key to sign every request.

IMHO sessions are irrelevant in REST based designs.

回答2:

I know this question was asked a long time ago but this can be achieved by hosting the wcf restful service within an asp.net application and then on the top of your service class add the following attribute:

[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Required)]

This enables many things including:

HttpContext: WCF services running in ASP.NET Compatibility Mode can access Current and its associated state.

See here for more info: What does AspNetCompatibilityRequirements really mean?