asp.net-mvc – nhibernate：具有相同标识符值的不同对象已经与会话相关联：2,实体：

具有相同标识符值的不同对象已经与会话相关联：2，实体：

我正在使用IOC容器

private class EStoreDependencies : NinjectModule
    {
        public override void Load()
        {

            Bind<ICompanyRepository>().To<CompanyRepository>().WithConstructorArgument("session",NHibernateHelper.openSession());
        }
    }

我的公司资料库

public class CompanyRepository : ICompanyRepository
{
    private ISession _session;

    public CompanyRepository(ISession session)
    {
        _session = session;
    }    

    public void update(Company company)
    {

        using (Itransaction transaction = _session.begintransaction())
        {

            _session.update(company);
            transaction.Commit();
        }
    }

}

和会话助手

public class NHibernateHelper
{
    private static ISessionFactory _sessionFactory; 
    const String SessionKey = "MySession";


    private static ISessionFactory SessionFactory
    {
        get
        {
            if (_sessionFactory == null)
            {
                var configuration = new Configuration();
                configuration.Configure();
                configuration.AddAssembly(typeof(UserProfilE).Assembly);
                configuration.SetProperty(NHibernate.Cfg.Environment.ConnectionStringName,System.Environment.MachineName);
                _sessionFactory = configuration.buildSessionFactory();
            }
            return _sessionFactory;
        }
    }

    public static ISession OpenSession()
    {
        var context = httpContext.Current;
        //.GetCurrentSession()

        if (context != null && context.Items.Contains(SessionKey))
        {
            //Return already open ISession
            return (ISession)context.Items[SessionKey];
        }
        else
        {
            //Create new ISession and store in httpContext
            var newSession = SessionFactory.openSession();
            if (context != null)
                context.Items[SessionKey] = newSession;

            return newSession;
        }
    }
}

我的MVC行动

[httpPost]
    public ActionResult Edit(EStore.Domain.Model.Company company)
    {

            if (company.Id > 0)
            {

                _companyRepository.update(company);
                _statusResponses.Add(StatusResponseHelper.Create(Constants
                    .Recordupdated(),StatusResponseLookup.success));
            }
            else
            {
                company.createdbyUserId = currentUserId;
               _companyRepository.Add(company);
            }


        var viewModel = EditViewModel(company.Id,_statusResponses);
        return View("Edit",viewModel);
    }

解决方法

public ActionResult Edit(EStore.Domain.Model.Company company) 
{ 

        if (company.Id > 0) 
        { 
            **ISession.Evict(company);**
            _companyRepository.update(company);