nHibernate & SQLite = [Class] 未映射

Question

好吧，我现在已经为此奋斗了一段时间，而且我似乎找不到解决方案，它应该非常简单。我得到了一个类（非常简单的类），我得到了 hbm.xml（设置为嵌入资源），我得到了 SQLite 的配置文件集，但我仍然得到 [Class] 未映射。

当我运行以下命令时，这是出现错误的地方：

 Public Sub LoadCentersFromDatabase()
        Try
            Dim session As ISession = OpenSession()
            Dim query As IQuery = session.CreateQuery("from Center")
            Dim foundCenters As IList(Of Center) = query.List(Of Center)()
            MsgBox(foundCenters.Count)
        Catch ex As Exception
            MsgBox(ex.Message)
        End Try
    End Sub

我的中心类内的代码

Public Class Center


#Region " Class Constructors "

    Protected Sub New()

    End Sub

    Public Sub New(ByVal centerName As String, ByVal address As String, ByVal city As String, ByVal state As String, ByVal zip As String, ByVal country As String, ByVal phone As String)
        Me.Id = 0
        Me.ExternalId = -1
        Me.CenterName = centerName
        Me.Address = address
        Me.City = city
        Me.State = state
        Me.ZIP = zip
        Me.Country = country
        Me.Phone = phone
    End Sub

    Public Sub New(ByVal id As Integer, ByVal centerName As String, ByVal address As String, ByVal city As String, ByVal state As String, ByVal zip As String, ByVal country As String, ByVal phone As String)
        Me.New(centerName, address, city, state, zip, country, phone)
        Me.Id = id
    End Sub

#End Region

#Region " Declared Auto Properties "

    Public Property Id As Integer
    Public Property ExternalId As String
    Public Property CenterName As String
    Public Property Address As String
    Public Property City As String
    Public Property State As String
    Public Property ZIP As String
    Public Property Country As String
    Public Property Phone As String

#End Region


End Class

的代码

<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2">
  <class name="KC.Domain.Center, KC" table="Centers" lazy="true">
    <id name="Id" column="CenterId">
      <generator class="native" />
    </id>
    <property name="CenterName" unique="true" />
    <property name="ExternalId" />
    <property name="Address" />
    <property name="City" />
    <property name="State" />
    <property name="ZIP" />
    <property name="Country" />
    <property name="Phone" />
  </class>
</hibernate-mapping>

这是 hbm.xml App.Config

<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
  <section name="hibernate-configuration" type="NHibernate.Cfg.ConfigurationSectionHandler, NHibernate"/>
</configSections>
  <startup useLegacyV2RuntimeActivationPolicy="true">
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/>
  </startup>
<hibernate-configuration  xmlns="urn:nhibernate-configuration-2.2" >
  <session-factory>
    <property name="connection.provider">NHibernate.Connection.DriverConnectionProvider</property>
    <property name="connection.driver_class">NHibernate.Driver.SQLite20Driver, NHibernate</property>
    <property name="connection.connection_string">
      Data Source=C:\Users\Public\Documents\cats.db;Version=3
    </property>
    <property name="dialect">NHibernate.Dialect.SQLiteDialect</property>
    <property name="query.substitutions">true=1;false=0</property>
    <property name="proxyfactory.factory_class">NHibernate.ByteCode.LinFu.ProxyFactoryFactory, NHibernate.ByteCode.LinFu</property>
    <mapping assembly="KC.Domain"/>
  </session-factory>
</hibernate-configuration>
</configuration>

Answer 1

根据您的映射文件，Center 类存在于 KC 程序集中。根据您的配置，该程序集名为 KC.Domain。验证包含 Center 类的程序集的名称。您的映射类可能需要说：

<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2">
    <class name="KC.Domain.Center, KC.Domain" table="Centers" lazy="true">

您可能还想在 hbm.xml 文件中使用以下内容...

<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" 
                   namespace="KC.Domain"
                   assembly="KC.Domain">
    <class name="Center" table="Centers" lazy="true">

请注意命名空间和程序集声明。我发现将它们放在顶部可以清理我的 hbm.xml 文件。然后您可以在整个过程中使用相对名称。