无法访问wcf服务中的asp.net会话

Question

我试图在WCF服务中访问asp.net会话.我正在jQuery AJAX从我的asp.net应用程序调用wcf服务.我已经通过许多SO问题和文章,并尝试了他们所说的一切,但我仍然无法访问wcf服务中的客户端会话.当我写作时DataSet ds = HttpContext.Current.Session["data"] as DataSet;,ds总是为空.

我在这里失踪了什么？

这就是我的WCF服务的样子://接口

[ServiceContract(SessionMode = SessionMode.Allowed)]
public interface IMyService
{
    [OperationContract(IsInitiating=true)]
    [WebInvoke(Method = "POST", BodyStyle = WebMessageBodyStyle.Wrapped, ResponseFormat = WebMessageFormat.Json, RequestFormat = WebMessageFormat.Json)]
    string GetData();

    [OperationContract]
    [WebInvoke(Method = "POST", BodyStyle = WebMessageBodyStyle.Wrapped, ResponseFormat = WebMessageFormat.Json, RequestFormat = WebMessageFormat.Json)]
    bool SaveData(string data);
}

//服务

[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Required)]
[ServiceBehavior(InstanceContextMode = InstanceContextMode.Single)]
public class MyService : IMyService
{
    public string GetData()
    {
        return "something";

    }
    public bool SaveData(string data)
    {
        DataSet ds = HttpContext.Current.Session["data"] as DataSet;
        return true;
    }

}

我创建的数据集session_start的Global.asax,并把它在会议上,这样我可以在整个应用程序,只要用户会话是有效的使用它.

    protected void Session_Start(object sender, EventArgs e)
    {
        DataSet ds = new DataSet();

        //Table to hold Product Selection
        DataTable dt = new DataTable("T1");
        dtSSNCertification.Columns.Add("Col1");
        ds.Tables.Add(dt);

        Session.Add("data", ds);
    }

这就是我的wcf项目的web.config bindings样子:

  <service name="MyService">
    <endpoint address="" behaviorConfiguration="JSONPBehaviorConfiguration"
      binding="customBinding" bindingConfiguration="jsonpBinding"
      contract="IMyService">
    </endpoint>
  </service>

  <customBinding>
    <binding name="jsonpBinding" >
      <jsonpMessageEncoding />
      <httpTransport manualAddressing="true"/>
    </binding>
  </customBinding>


  <system.serviceModel>
    <serviceHostingEnvironment aspNetCompatibilityEnabled="true"/>
  </system.serviceModel>

Answer 1

要使用ASP.NET功能,您需要启用与WCF的ASP.NET兼容性.在你的web.config中设置:

<system.serviceModel>
    <serviceHostingEnvironment aspNetCompatibilityEnabled="true">