nhibernate - 流畅的 nHibernate : Unsupported mapping type

Question

我正在设置一个新的解决方案来映射从 Access 数据库导入的 SQL 数据。自动映射适用于我定义的实体，但我需要能够使用 Fluent 映射类型来访问 .NotFound.Ignore 扩展名。

我在另一个项目(我认为!)中使用了完全相同的语法，效果很好。我是否犯了一个小学生错误导致“不支持的映射类型'IT.Classes.Entities.Admin'”？任何帮助深表感谢。

DDL:

CREATE TABLE [dbo].[Admin](
    [ID] [int] NOT NULL,
    [primaryEmail] [nvarchar](50) NULL,
    [secondaryEmail] [nvarchar](50) NULL,
    [highPriorityEmail] [nvarchar](50) NULL,
    [MobileEmail] [nvarchar](50) NULL,
    [EmailUser] [bit] NOT NULL,
    [HelpDeskMessage] [nvarchar](max) NULL
) ON [PRIMARY]

实体:

namespace IT.Classes.Entities
{
    public class Admin
    {
    public virtual bool EmailUser { get; set; }

    public virtual string HelpdeskMessage { get; set; }

    public virtual string HighPriorityEmail { get; set; }

    public virtual int Id { get; set; }

    public virtual string MobileEmail { get; set; }

    public virtual string PrimaryEmail { get; set; }

    public virtual string SecondaryEmail { get; set; }
    }
}

映射:

使用 FluentNHibernate.Mapping;
使用 IT.Classes.Entities；

namespace IT.Classes.Mappings
{
    public sealed class AdminMap : ClassMap<Admin>
    {
        public AdminMap()
        {
            this.Id(x => x.Id);
            this.Map(x => x.EmailUser);
            this.Map(x => x.HelpdeskMessage);
            this.Map(x => x.HighPriorityEmail);
            this.Map(x => x.MobileEmail);
            this.Map(x => x.PrimaryEmail);
            this.Map(x => x.SecondaryEmail);
        }
    }
}

session 工厂:

private static ISessionFactory CreateItHelpdeskSessionFactory()
{
    return
        Fluently.Configure().Database(
            MsSqlConfiguration.MsSql2008.ConnectionString(
                ConfigurationManager.ConnectionStrings["ITHelpdesk"].ConnectionString))
                .Mappings(m => m.FluentMappings.Add<Admin>())
                .Mappings(m => m.FluentMappings.Add<Applications>())
                .Mappings(m => m.FluentMappings.Add<Category>())
                .Mappings(m => m.FluentMappings.Add<Log>())
                .Mappings(m => m.FluentMappings.Add<Multipliers>())
                .Mappings(m => m.FluentMappings.Add<Os>())
                .Mappings(m => m.FluentMappings.Add<Priority>())
                .Mappings(m => m.FluentMappings.Add<Request>())
                .Mappings(m => m.FluentMappings.Add<Status>())
                .BuildSessionFactory();
}

编辑

我以为我会导出自动映射以查看它们是否会突出显示流畅映射中的问题，但它们似乎是正确的:

<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2">
  <class xmlns="urn:nhibernate-mapping-2.2" name="IT.Classes.Entities.Admin, ITClasses, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" table="`Admin`">
    <id name="Id" type="System.Int32, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
      <column name="Id" />
      <generator class="identity" />
    </id>
    <property name="EmailUser" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
      <column name="EmailUser" />
    </property>
    <property name="HelpdeskMessage" type="System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
      <column name="HelpdeskMessage" />
    </property>
    <property name="HighPriorityEmail" type="System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
      <column name="HighPriorityEmail" />
    </property>
    <property name="MobileEmail" type="System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
      <column name="MobileEmail" />
    </property>
    <property name="PrimaryEmail" type="System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
      <column name="PrimaryEmail" />
    </property>
    <property name="SecondaryEmail" type="System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
      <column name="SecondaryEmail" />
    </property>
  </class>
</hibernate-mapping>

编辑 2

完整的堆栈跟踪。注意潜在原因 = 0。

FluentNHibernate.Cfg.FluentConfigurationException: An invalid or incomplete configuration was used while creating a SessionFactory. Check PotentialReasons collection, and InnerException for more detail.
 ---> FluentNHibernate.Cfg.FluentConfigurationException: An invalid or incomplete configuration was used while creating a SessionFactory. Check PotentialReasons collection, and InnerException for more detail.

 ---> System.InvalidOperationException: Unsupported mapping type 'IT.Classes.Entities.Admin'
   at FluentNHibernate.PersistenceModel.Add(Type type) in d:\Builds\FluentNH\src\FluentNHibernate\PersistenceModel.cs:line 152
   at FluentNHibernate.Cfg.FluentMappingsContainer.Apply(PersistenceModel model) in d:\Builds\FluentNH\src\FluentNHibernate\Cfg\FluentMappingsContainer.cs:line 127
   at FluentNHibernate.Cfg.MappingConfiguration.Apply(Configuration cfg) in d:\Builds\FluentNH\src\FluentNHibernate\Cfg\MappingConfiguration.cs:line 84
   at FluentNHibernate.Cfg.FluentConfiguration.BuildConfiguration() in d:\Builds\FluentNH\src\FluentNHibernate\Cfg\FluentConfiguration.cs:line 252
   --- End of inner exception stack trace ---
   at FluentNHibernate.Cfg.FluentConfiguration.BuildConfiguration() in d:\Builds\FluentNH\src\FluentNHibernate\Cfg\FluentConfiguration.cs:line 264
   at FluentNHibernate.Cfg.FluentConfiguration.BuildSessionFactory() in d:\Builds\FluentNH\src\FluentNHibernate\Cfg\FluentConfiguration.cs:line 230
   --- End of inner exception stack trace ---
   at FluentNHibernate.Cfg.FluentConfiguration.BuildSessionFactory() in d:\Builds\FluentNH\src\FluentNHibernate\Cfg\FluentConfiguration.cs:line 235
   at ConsoleChecker.Program.CreateItHelpdeskSessionFactory() in E:\code\code_testing\2010\ASPHelpdesks\ConsoleChecker\Program.cs:line 48
   at ConsoleChecker.Program.GetRequests() in E:\code\code_testing\2010\ASPHelpdesks\ConsoleChecker\Program.cs:line 40
   at ConsoleChecker.Program.Main(String[] args) in E:\code\code_testing\2010\ASPHelpdesks\ConsoleChecker\Program.cs:line 24

Answer 1

在您的配置代码中，Fluent Mappings 中提到的类型应该是 map 类 ，而不是被映射的类。

也就是说，而不是:

return
    Fluently.Configure().Database(
        MsSqlConfiguration.MsSql2008.ConnectionString(
            ConfigurationManager.ConnectionStrings["ITHelpdesk"].ConnectionString))
            .Mappings(m => m.FluentMappings.Add<Admin>())
            .Mappings(m => m.FluentMappings.Add<Applications>())
            .Mappings(m => m.FluentMappings.Add<Category>())
            .Mappings(m => m.FluentMappings.Add<Log>())
            .Mappings(m => m.FluentMappings.Add<Multipliers>())
            .Mappings(m => m.FluentMappings.Add<Os>())
            .Mappings(m => m.FluentMappings.Add<Priority>())
            .Mappings(m => m.FluentMappings.Add<Request>())
            .Mappings(m => m.FluentMappings.Add<Status>())
            .BuildSessionFactory();

你需要说:

return
    Fluently.Configure().Database(
        MsSqlConfiguration.MsSql2008.ConnectionString(
            ConfigurationManager.ConnectionStrings["ITHelpdesk"].ConnectionString))
            .Mappings(m => m.FluentMappings.Add<AdminMap>())
            .Mappings(m => m.FluentMappings.Add<ApplicationsMap>())
            .Mappings(m => m.FluentMappings.Add<CategoryMap>())
            .Mappings(m => m.FluentMappings.Add<LogMap>())
            .Mappings(m => m.FluentMappings.Add<MultipliersMap>())
            .Mappings(m => m.FluentMappings.Add<OsMap>())
            .Mappings(m => m.FluentMappings.Add<PriorityMap>())
            .Mappings(m => m.FluentMappings.Add<RequestMap>())
            .Mappings(m => m.FluentMappings.Add<StatusMap>())
            .BuildSessionFactory();

更好的是，为了避免每个类映射都有单独的一行，请使用 .AddFromAssemblyOf<>() 方法，该方法使用反射从给定程序集中添加所有类映射:

return
    Fluently.Configure().Database(
        MsSqlConfiguration.MsSql2008.ConnectionString(
            ConfigurationManager.ConnectionStrings["ITHelpdesk"].ConnectionString))
            .Mappings(m => m.FluentMappings.AddFromAssemblyOf<AdminMap>())
            .BuildSessionFactory();