c# – 会话模式“ServerState”不能正确处理线程中的Session

当会话状态模式为“InProc”时,添加到会话的信息可在会话之外使用,而不会出现任何问题.

但是,当会话状态模式为“StateServer”时,行为是不同的.基本上,Thread内部设置的值有时会持久存在,有时则不会.对我来说似乎是随机的.

这是重现问题的代码.

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender,EventArgs e)
    {
    }

    protected void store_Click(object sender,EventArgs e)
    {
        // Set the session values to default.
        Session["Test1"] = "No";
        Session["Test2"] = "No";

        // Set the Test1 session value in the thread.
        ThreadObject threadObject = new ThreadObject() { Username = Page.User.Identity.Name,SessionState = Session };
        worker = new Thread(new ParameterizedThreadStart(Work));
        worker.Start(threadObject);

        // Set the Test2 session value in this thread just to compare.
        Session["Test2"] = "Yes";
    }

    protected void print_Click(object sender,EventArgs e)
    {
        // Print out the Session values.
        label1.Text = string.Empty;
        label1.Text += "Inside Thread: " + Session["Test1"] + ",n";
        label1.Text += "Outside: " + Session["Test2"] + "n";
    }

    private static Thread worker;

    public static void Work(object threadObject)
    {
        // Retrieve the Session object and set the Test2 value.
        ThreadObject threadObject1 = (ThreadObject)threadObject;
        HttpSessionState currentSession = threadObject1.SessionState;
        currentSession["Test1"] = "Yes";
    }
}

public class ThreadObject
{
    public string Username { get; set; }
    public HttpSessionState SessionState { get; set; }
}

上面的代码适用于SessionState mode =“InProc”,但是随机的：

<sessionState mode="StateServer"
  stateConnectionString="tcpip=localhost:42424"
  cookieless="false"
  timeout="20"/>

有任何想法吗？

编辑：因此,根据下面的评论,线程需要在请求(主线程)完成之前完成,否则添加到会话的任何内容都将丢失.这是因为在主线程结束时,会话被序列化并发送到数据存储(进程外或SQL Server).