C# NHibernate:表X中的关联引用未映射的类：X

我有两个订单和客户对象的映射文件

  <class name="OODB.Domain.Customer, OODB.Domain" entity-name="Customers">
     <id name="ID" column="customer_id">
      <generator class="guid" />
     </id>
     <property name="FirstName" column="first_name"/>
     <property name="LastName" column="last_name"/>
     <property name="EMail" column="email"/>
     <property name="Telephone" column="telephone" />

    <component name="Address" class="Address">
       <property name="Street" column="street"></property>
       <property name="PostalCode" column="postal_code"></property>
       <property name="City" column="city"></property>
    </component>
  </class>
 </hibernate-mapping>

客户映射：

  <class name="OODB.Domain.Customer, OODB.Domain" entity-name="Customers">
     <id name="ID" column="customer_id">
      <generator class="guid" />
     </id>
     <property name="FirstName" column="first_name"/>
     <property name="LastName" column="last_name"/>
     <property name="EMail" column="email"/>
     <property name="Telephone" column="telephone" />

    <component name="Address" class="Address">
       <property name="Street" column="street"></property>
       <property name="PostalCode" column="postal_code"></property>
       <property name="City" column="city"></property>
    </component>
  </class>
 </hibernate-mapping>

订单映射：

  <class name="OODB.Domain.Customer, OODB.Domain" entity-name="Customers">
     <id name="ID" column="customer_id">
      <generator class="guid" />
     </id>
     <property name="FirstName" column="first_name"/>
     <property name="LastName" column="last_name"/>
     <property name="EMail" column="email"/>
     <property name="Telephone" column="telephone" />

    <component name="Address" class="Address">
       <property name="Street" column="street"></property>
       <property name="PostalCode" column="postal_code"></property>
       <property name="City" column="city"></property>
    </component>
  </class>
 </hibernate-mapping>

<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="OODB.Domain"   namespace="OODB.Domain">  
  <class name="OODB.Domain.CustomerOrder, OODB.Domain" entity-name="Orders">
    <id name="ID" column="order_id">
      <generator class="guid"></generator>
    </id>
    <property name="OrderNo" column="order_no" length="8" not-null="true"></property>
    <property name="Status" column="status" not-null="true"></property>
    <many-to-one name="Orderer" class="Customer" column="customer_id" insert="true" not-found="exception" fetch="join"/>
  </class>
</hibernate-mapping>

客户类别：

  <class name="OODB.Domain.Customer, OODB.Domain" entity-name="Customers">
     <id name="ID" column="customer_id">
      <generator class="guid" />
     </id>
     <property name="FirstName" column="first_name"/>
     <property name="LastName" column="last_name"/>
     <property name="EMail" column="email"/>
     <property name="Telephone" column="telephone" />

    <component name="Address" class="Address">
       <property name="Street" column="street"></property>
       <property name="PostalCode" column="postal_code"></property>
       <property name="City" column="city"></property>
    </component>
  </class>
 </hibernate-mapping>

namespace OODB.Domain
{
    public class Customer : ModelBase<Customer>
    {
        public virtual string FirstName
        {
            get;
            set;
        }

        public virtual string LastName
        {
            get;
            set;
        }

        public virtual string EMail
        {
            get;
            set;
        }

        public virtual string Telephone
        {
            get;
            set;
        }

        public virtual Address Address
        {
            get;
            set;
        }

...
}

名称空间OODB.Domain
{
公共类客户：模型库
{
公共虚拟字符串名
{
得到；
设置
}
公共虚拟字符串LastName
{
得到；
设置
}
公共虚拟字符串电子邮件
{
得到；
设置
}
公共虚拟字符串电话
{
得到；
设置
}
公共虚拟地址
{
得到；
设置
}
...
}

客户订单类别：

  <class name="OODB.Domain.Customer, OODB.Domain" entity-name="Customers">
     <id name="ID" column="customer_id">
      <generator class="guid" />
     </id>
     <property name="FirstName" column="first_name"/>
     <property name="LastName" column="last_name"/>
     <property name="EMail" column="email"/>
     <property name="Telephone" column="telephone" />

    <component name="Address" class="Address">
       <property name="Street" column="street"></property>
       <property name="PostalCode" column="postal_code"></property>
       <property name="City" column="city"></property>
    </component>
  </class>
 </hibernate-mapping>

public class CustomerOrder : ModelBase<CustomerOrder>
{
    public virtual string OrderNo
    {
        get;
        set;
    }

    public virtual Customer Orderer
    {
        get;
        set;
    }

    public virtual OrderStatus Status
    {
        get;
        set;
    }
...
}

public类客户订单：ModelBase
{
公共虚拟字符串序号
{
得到；
设置
}
公共虚拟客户订购者
{
得到；
设置
}
公共虚拟订单状态
{
得到；
设置
}
...
}

---

如果我删除多对一的内容（映射被集成为一个嵌入式资源。我已经检查了两次）。否则我会得到错误“来自表Orders的关联引用了一个未映射的类：OODB.Domain.Customer”。但是客户对象被映射了…我缺少了什么？

我猜对于您的示例来说：

多对一

元素中的“类”规范必须与其他所有

类

规范具有相同的详细程度。尤其是，必须包括部件

  <class name="OODB.Domain.Customer, OODB.Domain" entity-name="Customers">
     <id name="ID" column="customer_id">
      <generator class="guid" />
     </id>
     <property name="FirstName" column="first_name"/>
     <property name="LastName" column="last_name"/>
     <property name="EMail" column="email"/>
     <property name="Telephone" column="telephone" />

    <component name="Address" class="Address">
       <property name="Street" column="street"></property>
       <property name="PostalCode" column="postal_code"></property>
       <property name="City" column="city"></property>
    </component>
  </class>
 </hibernate-mapping>

<many-to-one name="Orderer" class="OODB.Domain.Customer, OODB.Domain" column="customer_id" insert="true" not-found="exception" fetch="join"/>

我混淆了class元素上的table和entity name属性。\

此异常的一个可能原因是.html文件不是“嵌入式资源”。如果映射文件（hbm）不在正确的目录中，则会出现此异常。如果查看输出窗口，您将看到如下内容：

  <class name="OODB.Domain.Customer, OODB.Domain" entity-name="Customers">
     <id name="ID" column="customer_id">
      <generator class="guid" />
     </id>
     <property name="FirstName" column="first_name"/>
     <property name="LastName" column="last_name"/>
     <property name="EMail" column="email"/>
     <property name="Telephone" column="telephone" />

    <component name="Address" class="Address">
       <property name="Street" column="street"></property>
       <property name="PostalCode" column="postal_code"></property>
       <property name="City" column="city"></property>
    </component>
  </class>
 </hibernate-mapping>

NHibernate.Cfg.Configuration: ERROR lambda_method - An association from the table
SubsequentReportDetail refers to an unmapped class: NS.Project.Data.Domain.Class
NHibernate.MappingException: An association from the table X refers to an 
unmapped class:  NS.Project.Data.Domain.Class

---

我的问题是..同一个属性映射了两次

  <class name="OODB.Domain.Customer, OODB.Domain" entity-name="Customers">
     <id name="ID" column="customer_id">
      <generator class="guid" />
     </id>
     <property name="FirstName" column="first_name"/>
     <property name="LastName" column="last_name"/>
     <property name="EMail" column="email"/>
     <property name="Telephone" column="telephone" />

    <component name="Address" class="Address">
       <property name="Street" column="street"></property>
       <property name="PostalCode" column="postal_code"></property>
       <property name="City" column="city"></property>
    </component>
  </class>
 </hibernate-mapping>

   Property(x => x.MyProperty);
   Bag(x => x.MyProperty, colmap => { }, map => map.OneToMany(x => { }));

---

可能会向我们展示“CustomerOrder”类的实际类定义。特别是“Orderer”属性。另一个要测试的东西：您是否将“Customer.hbm.xml”上的“BuildAction”设置为“EmbeddedResource”？（这是一件简单的事情，过去我一直在做）您是否自行获取了客户对象？您是否对客户映射中的Address类进行了相同的调整？您应该查看Fluent nHibernate。它提供了一种更不容易出错的定义映射的方法。我需要在.hbm文件的properties build操作中将其设置为嵌入式资源