Nhibernate Session以WCF＆amp; amp; WPF

Question

我抱怨我的应用中定期出现的问题。我的应用程序使用WPF，WCF，Fluent NHibernate和SQL。 自从我们将应用程序移至PROD环境（有30个活跃用户）后，问题就出现了;但是在UAT环境中（有5个活跃用户）app工作正常。

记录的异常：

System.ObjectDisposedException: Session is closed!
Object name: 'ISession'.
   at NHibernate.Impl.AbstractSessionImpl.ErrorIfClosed()
   at NHibernate.Impl.AbstractSessionImpl.CheckAndUpdateSessionStatus()
   at NHibernate.Impl.SessionImpl.get_PersistenceContext()
   at NHibernate.Engine.TwoPhaseLoad.InitializeEntity(Object entity, Boolean readOnly, ISessionImplementor session, PreLoadEvent preLoadEvent, PostLoadEvent postLoadEvent)
   at NHibernate.Loader.Loader.InitializeEntitiesAndCollections(IList hydratedObjects, Object resultSetId, ISessionImplementor session, Boolean readOnly)
   at NHibernate.Loader.Loader.DoQuery(ISessionImplementor session, QueryParameters queryParameters, Boolean returnProxies)
   at NHibernate.Loader.Loader.DoQueryAndInitializeNonLazyCollections(ISessionImplementor session, QueryParameters queryParameters, Boolean returnProxies)
   at NHibernate.Loader.Loader.LoadEntity(ISessionImplementor session, Object id, IType identifierType, Object optionalObject, String optionalEntityName, Object optionalIdentifier, IEntityPersister persister)

我想与您分享NHibernateHelper课程，以检查它是否有任何错误：

namespace APCC.Business
{
    public class NHibernateHelper
    {
        private static ISessionFactory _sessionFactory;
        private static ISession currentSession;

        public static ISessionFactory SessionFactory
        {
            get
            {
                if (_sessionFactory == null)

                    InitializeSessionFactory();
                return _sessionFactory;
            }
        }

        private static void InitializeSessionFactory()
        {
            //try
            //{
                _sessionFactory = Fluently.Configure()
                    .Database(MsSqlConfiguration.MsSql2012
                      .ConnectionString(ConfigurationManager.ConnectionStrings["APCCDatabase"].ConnectionString)

)
                    .Mappings(m =>
                              m.FluentMappings
                                  .AddFromAssemblyOf<BusinessUnitMap>()
                                  .Conventions.Add(FluentNHibernate.Conventions.Helpers.DefaultLazy.Never()))
                                  .ExposeConfiguration(cfg => new SchemaExport(cfg))//cfg => cfg.SetInterceptor(new AuditInterceptor()))//cfg => new SchemaExport(cfg))

                    .BuildSessionFactory();
            //}
            //catch (FluentConfigurationException ex)
            //{
            //    ExceptionHelper.HandleException(ex);
            //}
            //catch (Exception ex)
            //{
            //    ExceptionHelper.HandleException(ex);
            //}

            //  .ExposeConfiguration(cfg => new SchemaExport(cfg).Create(true, true))
        }



        public static ISession OpenSession()
        {
          if(currentSession == null)
            currentSession =SessionFactory.OpenSession();
            return currentSession;
        }


        /// <summary>
        /// Gets the current session.
        /// </summary>
        public static ISession GetCurrentSession()
        {
            if (currentSession != null)
                return currentSession;
            else
            {
                if (_sessionFactory == null)
                {
                    InitializeSessionFactory();
                    currentSession = _sessionFactory.OpenSession();
                }
                else
                { currentSession = _sessionFactory.OpenSession(); }
                //if (CurrentSessionContext.HasBind(_sessionFactory))
                //    return _sessionFactory.GetCurrentSession();


                //CurrentSessionContext.Bind(currentSession);

                return currentSession;
            }
        }


        /// <summary>
        /// Closes the session.
        /// </summary>
        public static void CloseSession()
        {
            if (currentSession!=null)
            {
               // var session = CurrentSessionContext.Unbind(_sessionFactory);
                currentSession.Close();
                currentSession = null;
            }
        }


        ///// <summary>
        ///// Commits the session.
        ///// </summary>
        ///// <param name="session">The session.</param>
        //public static void CommitSession(ISession session)
        //{
        //    try
        //    {
        //        session.Transaction.Commit();
        //    }
        //    catch (Exception)
        //    {
        //        session.Transaction.Rollback();
        //        throw;
        //    }
        //}

        //public static ITransaction GetSessionTransaction()
        //{
        //    return GetCurrentSession().BeginTransaction();
        //}
    }
}