使用“ FluentNHibernate”时出现错误。 .xml中的类似文件可以正常工作,但是我想使用“ FluentNHibernate”要容易得多。知道我犯错了吗以及如何解决此问题?

复制例外

NHibernate.MappingException was unhandled by user code
  Message=No persister for: TreningToWork.Models.Person
  Source=NHibernate
  StackTrace:
       at NHibernate.Impl.SessionFactoryImpl.GetEntityPersister(String entityName)
       at NHibernate.Impl.SessionImpl.GetEntityPersister(String entityName, Object obj)
       at NHibernate.Event.Default.AbstractSaveEventListener.SaveWithGeneratedId(Object entity, String entityName, Object anything, IEventSource source, Boolean requiresImmediateIdAccess)
       at NHibernate.Event.Default.DefaultSaveOrUpdateEventListener.SaveWithGeneratedOrRequestedId(SaveOrUpdateEvent event)
       at NHibernate.Event.Default.DefaultSaveEventListener.SaveWithGeneratedOrRequestedId(SaveOrUpdateEvent event)
       at NHibernate.Event.Default.DefaultSaveOrUpdateEventListener.EntityIsTransient(SaveOrUpdateEvent event)
       at NHibernate.Event.Default.DefaultSaveEventListener.PerformSaveOrUpdate(SaveOrUpdateEvent event)
       at NHibernate.Event.Default.DefaultSaveOrUpdateEventListener.OnSaveOrUpdate(SaveOrUpdateEvent event)
       at NHibernate.Impl.SessionImpl.FireSave(SaveOrUpdateEvent event)
       at NHibernate.Impl.SessionImpl.Save(Object obj)
       at NHibernateTutorial.PersonRepository.Add(Person newPerson) in D:\praca\TreningToWork\TreningToWork\Repository\PersonRepository.cs:line 15
       at TreningToWork.Controllers.ShowDataController.Index() in D:\praca\TreningToWork\TreningToWork\Controllers\ShowDataController.cs:line 21
       at lambda_method(Closure , ControllerBase , Object[] )
       at System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters)
       at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters)
       at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
       at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClass15.<InvokeActionMethodWithFilters>b__12()
       at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
  InnerException:


例外(更多详细信息):



例外(更多详细信息):



FluentNHibernate(与.xml相同)

using System.ComponentModel.DataAnnotations;
using FluentNHibernate.Automapping;
using FluentNHibernate.Automapping.Alterations;

namespace TreningToWork.Models
{
    public class Person
    {
        [Key]
        public virtual int Id { get; set; }
        public virtual string Name { get; set; }
        public virtual string Surname { get; set; }
    }
    public class PersonMappingAltertation : IAutoMappingOverride<Person>
    {
        public void Override(AutoMapping<Person> mapping)
        {
            mapping.Table("Person");
            mapping.Id(x => x.Id, "Id").GeneratedBy.Identity();
            mapping.Map(x=> x.Name, "Name").Column("Name").Not.Nullable();
            mapping.Map(x => x.Surname, "Surname").Column("Surname").Not.Nullable();
        }
    }
}


人帮手

using NHibernate;
using NHibernate.Cfg;
using TreningToWork.Models;

namespace TreningToWork.ModelsHelper
{
    public class PersonHelper
    {
        private static ISessionFactory _sessionFactory;

        private static ISessionFactory SessionFactory
        {
            get
            {
                if (_sessionFactory == null)
                {
                    var configuration = new Configuration();
                    configuration.Configure();
                    configuration.AddAssembly(typeof(Person).Assembly);
                    _sessionFactory = configuration.BuildSessionFactory();
                }
                return _sessionFactory;
            }
        }

        public static ISession OpenSession()
        {
            return SessionFactory.OpenSession();
        }
    }
}


人资料库

using NHibernate;
using TreningToWork.Models;
using TreningToWork.ModelsHelper;

namespace NHibernateTutorial
{
    public class PersonRepository
    {
        public void Add(Person newPerson)
        {
            using (ISession session = PersonHelper.OpenSession())
            {
                using (ITransaction transaction = session.BeginTransaction())
                {
                    session.Save(newPerson);
                    transaction.Commit();
                }
            }
        }

        public Person GetPersonByName(string name)
        {
            using (ISession session = PersonHelper.OpenSession())
            {
                var result = session.QueryOver<Person>().Where(x => x.Name == name).SingleOrDefault();
                return result ?? new Person();
            }
        }

        public void Update(Person newPerson)
        {
            using (ISession session = PersonHelper.OpenSession())
            {
                using (ITransaction transaction = session.BeginTransaction())
                {
                    session.Update(newPerson);
                    transaction.Commit();
                }
            }
        }

        public void Delete(Person newPerson)
        {
            using (ISession session = PersonHelper.OpenSession())
            {
                using (ITransaction transaction = session.BeginTransaction())
                {
                    session.Delete(newPerson);
                    transaction.Commit();
                }
            }
        }

    }
}


编辑文件错误

System.ArgumentNullException was unhandled by user code
  Message=Value cannot be null.
Parameter name: Data Source
  Source=System.Data
  ParamName=Data Source
  StackTrace:
       at System.Data.SqlClient.SqlConnectionStringBuilder.set_DataSource(String value)
       at FluentNHibernate.Cfg.Db.MsSqlConnectionStringBuilder.Create()
       at FluentNHibernate.Cfg.Db.PersistenceConfiguration`2.CreateProperties()
       at FluentNHibernate.Cfg.Db.PersistenceConfiguration`2.ConfigureProperties(Configuration nhibernateConfig)
       at FluentNHibernate.Cfg.FluentConfiguration.Database(IPersistenceConfigurer config)
       at TreningToWork.ModelsHelper.PersonHelper.get_SessionFactory() in D:\praca\TreningToWork\TreningToWork\ModelsHelper\PersonHelper.cs:line 20
       at TreningToWork.ModelsHelper.PersonHelper.OpenSession() in D:\praca\TreningToWork\TreningToWork\ModelsHelper\PersonHelper.cs:line 40
       at NHibernateTutorial.PersonRepository.Add(Person newPerson) in D:\praca\TreningToWork\TreningToWork\Repository\PersonRepository.cs:line 11
       at TreningToWork.Controllers.ShowDataController.Index() in D:\praca\TreningToWork\TreningToWork\Controllers\ShowDataController.cs:line 21
       at lambda_method(Closure , ControllerBase , Object[] )
       at System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters)
       at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters)
       at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
       at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClass15.<InvokeActionMethodWithFilters>b__12()
       at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
  InnerException:


我的工厂变了

using FluentNHibernate.Cfg;
using FluentNHibernate.Cfg.Db;
using NHibernate;
using TreningToWork.Models;

namespace TreningToWork.ModelsHelper
{
    public class PersonHelper
    {
        private static ISessionFactory _sessionFactory;

        private static ISessionFactory SessionFactory
        {
            get
            {
                if (_sessionFactory == null)
                {
                    _sessionFactory = Fluently.Configure()
                    .Database(MsSqlConfiguration.MsSql2008
                    .ConnectionString(c => c
                    .FromAppSetting("rafalConnectionString"))
                        //<%$ ConnectionStrings:rafalConnectionString %>
                    .ShowSql())
                    .Mappings(m => m
                    .FluentMappings.AddFromAssemblyOf<Person>())
                    .BuildSessionFactory();
                    // var configuration = new Configuration();
                    // configuration.Configure();
                    // configuration.AddAssembly(typeof(Person).Assembly);
                    // _sessionFactory = configuration.BuildSessionFactory();
                }
                return _sessionFactory;
            }
        }

        public static ISession OpenSession()
        {
            return SessionFactory.OpenSession();
        }
    }
}


确实,我在配置时遇到了问题。我将项目添加到这篇文章中。告诉我我在哪里犯了错误,以及如何解决此问题。我没有找到好的例子,这个项目可能会在将来完成时转到youtube。对于其他用户。

如果您了解这篇文章中的所有文件,则不必上传我的项目。

重要文件:

控制器->有控制器
模型,ModelsHelper,存储库和视图。如果您打开网站,我的软件商必须将新表和数据放入数据库。现在我对此有疑问。当我使用.xml文件时,一切正常,但是我想使用“ FluentNHibernate”,这是一个问题。

文件:My project download praca.zip

下一个错误:

System.ArgumentNullException was unhandled by user code
  Message=Value cannot be null.
Parameter name: Data Source
  Source=System.Data
  ParamName=Data Source
  StackTrace:
       at System.Data.SqlClient.SqlConnectionStringBuilder.set_DataSource(String value)
       at FluentNHibernate.Cfg.Db.MsSqlConnectionStringBuilder.Create()
       at FluentNHibernate.Cfg.Db.PersistenceConfiguration`2.CreateProperties()
       at FluentNHibernate.Cfg.Db.PersistenceConfiguration`2.ConfigureProperties(Configuration nhibernateConfig)
       at FluentNHibernate.Cfg.FluentConfiguration.Database(IPersistenceConfigurer config)
       at TreningToWork.ModelsHelper.PersonHelper.get_SessionFactory() in D:\praca\TreningToWork\TreningToWork\ModelsHelper\PersonHelper.cs:line 21
       at TreningToWork.ModelsHelper.PersonHelper.OpenSession() in D:\praca\TreningToWork\TreningToWork\ModelsHelper\PersonHelper.cs:line 50
       at NHibernateTutorial.PersonRepository.Add(Person newPerson) in D:\praca\TreningToWork\TreningToWork\Repository\PersonRepository.cs:line 11
       at TreningToWork.Controllers.ShowDataController.Index() in D:\praca\TreningToWork\TreningToWork\Controllers\ShowDataController.cs:line 21
       at lambda_method(Closure , ControllerBase , Object[] )
       at System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters)
       at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters)
       at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
       at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClass15.<InvokeActionMethodWithFilters>b__12()
       at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
  InnerException:

最佳答案

您的项目存在的问题太多了,无法列出。我进行了许多更改(主要是删除了不必要的代码),使其生效并将其上传到http://www.sendspace.pl/en/file/8f7f2ebf8fabf912800d64c

关键的变化是使用Ninject依赖项注入框架将会话工厂创建为单例,并根据请求创建会话。

如果您有任何疑问,请告诉我。

关于c# - 使用FluentNHibernate NHibernate 3.3错误的映射,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/15087904/

10-12 12:48
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