WCF cookie

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.Text;

using System.Web.Security;
using System.ServiceModel.Web;


namespace MvcApplication2
{
    // NOTE: If you change the interface name "IService2" here, you must also update the reference to "IService2" in Web.config.
    [ServiceContract]
    public interface IService2
    {


        [OperationContract]
        [WebInvoke(RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json, BodyStyle = WebMessageBodyStyle.WrappedRequest, Method = "GET")]
        string DoWork();

        [OperationContract]
        bool Login(string user, string pwd);

        [OperationContract]
        System.Collections.Generic.List<long> GetRecordIDList();


        [OperationContract]
        string GetRecordById(long id);

        [OperationContract]
        System.Collections.Generic.Dictionary<string, string> GetLastRecords(int count);

        [OperationContract]
        bool UpdateRecordStatus(long id, byte status);




    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Serialization;
using System.ServiceModel;
using System.Text;

using System.Web;
using System.Web.Security;
using System.ServiceModel.Activation;
using System.ServiceModel.Web;



namespace MvcApplication2
{
    // NOTE: If you change the class name "Service2" here, you must also update the reference to "Service2" in Web.config.
    [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]  
    public class Service2 : IService2
    {

        public string DoWork()
        {
            return System.DateTime.Now.ToString();
        }

        protected bool Validate()
        {
            HttpCookie hc = HttpContext.Current.Request.Cookies["u"];
            if (hc != null)
            {
                string v = hc.Value;
                return true;
            }
            return false;
            //if()
        }

        public bool Login(string user, string pwd)
        {
            if (user == pwd)
            {
                HttpCookie hc = new HttpCookie("u");
                hc.Value = user;
                HttpContext.Current.Response.Cookies.Add(hc);
                return true;
            }
            return true;
        }

        public List<long> GetRecordIDList()
        {
            throw new NotImplementedException();
        }

        public string GetRecordById(long id)
        {
            if (Validate())
            {
                return "abc";
            }
            return "0";
        }

        public Dictionary<string, string> GetLastRecords(int count)
        {
            throw new NotImplementedException();
        }

        public bool UpdateRecordStatus(long id, byte status)
        {
            throw new NotImplementedException();
        }


    }
}

 <system.serviceModel>
    <serviceHostingEnvironment aspNetCompatibilityEnabled="true" />    
  <services>
    <service behaviorConfiguration="MvcApplication2.Service2Behavior"
      name="MvcApplication2.Service2">
      <endpoint address="" binding="wsHttpBinding" contract="MvcApplication2.IService2">
        <identity>
          <dns value="localhost" />
        </identity>
      </endpoint>
      <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
    </service>      
  </services>  
     
    <behaviors>      
      <serviceBehaviors>               
        <behavior name="MvcApplication2.Service2Behavior">
          <serviceMetadata httpGetEnabled="true" />
          <serviceDebug includeExceptionDetailInFaults="false" />
        </behavior>                
      </serviceBehaviors>
    </behaviors>
  </system.serviceModel>

http://www.cnblogs.com/shanyou/archive/2009/09/06/1561429.html 

http://www.cnblogs.com/artech/archive/2009/06/25/1511165.html

 http://msdn.microsoft.com/zh-cn/library/bb398778.aspx