[HttpException (0x80072749): 无法向会话状态服务器发出会话状态请求。请确保 ASP.NET State Service (ASP.NET 状态服务)已启动，并且客户端端口与服务器端口相同。如果服务器位于远程计算机上，请检查 HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\aspnet_state\Parameters\AllowRemoteConnection 的值，确保服务器接受远程请求。如果服务器位于本地计算机上，并且上面提到的注册表值不存在或者设置为 0，则状态服务器连接字符串必须使用“localhost”或“127.0.0.1”作为服务器名称。]
   System.Web.SessionState.OutOfProcSessionStateStore.MakeRequest(StateProtocolVerb verb, String id, StateProtocolExclusive exclusiveAccess, Int32 extraFlags, Int32 timeout, Int32 lockCookie, Byte[] buf, Int32 cb, Int32 networkTimeout, SessionNDMakeRequestResults& results) +3265376
   System.Web.SessionState.OutOfProcSessionStateStore.DoGet(HttpContext context, String id, StateProtocolExclusive exclusiveAccess, Boolean& locked, TimeSpan& lockAge, Object& lockId, SessionStateActions& actionFlags) +169
   System.Web.SessionState.OutOfProcSessionStateStore.GetItemExclusive(HttpContext context, String id, Boolean& locked, TimeSpan& lockAge, Object& lockId, SessionStateActions& actionFlags) +26
   System.Web.SessionState.SessionStateModule.GetSessionStateItem() +111
   System.Web.SessionState.SessionStateModule.BeginAcquireState(Object source, EventArgs e, AsyncCallback cb, Object extraData) +778
   System.Web.AsyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +254
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155