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这可能是一个简单的问题，但我就是想不通。

我有一个与“地址”多对一的“公司”类，它与“城市”中的复合 id 多对一。当我加载“公司”时，它会加载“地址”，但如果我调用“地址”的任何属性，我会收到错误消息：

{"could not load an entity: [IDI.Domain.Entities.Address#2213][SQL: SELECT address0_.AddressId as AddressId13_0_, address0_.Street as Street13_0_, address0_.floor as floor13_0_, address0_.room as room13_0_, address0_.postalcode as postalcode13_0_, address0_.CountryCode as CountryC6_13_0_, address0_.CityName as CityName13_0_ FROM Address address0_ WHERE address0_.AddressId=?]"}

内部异常是：

{"Invalid column name 'CountryCode'.\r\nInvalid column name 'CityName'."}

我不明白的是我可以在 sql server 2005 中运行查询并且它可以工作，而且这两个列都存在于地址表中。

这是我的 HBM：

<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="IDI.Domain" namespace="IDI.Domain.Entities" >
    <class name="IDI.Domain.Entities.Company,IDI.Domain" table="Companies">
        <id column="CompanyId" name="CompanyId" unsaved-value="0">
            <generator class="native"></generator>
        </id>
        <property column="Name" name="Name" not-null="true" type="String"></property>
        <property column="NameEng" name="NameEng" not-null="false" type="String"></property>
        <property column="Description" name="Description" not-null="false" type="String"></property>
        <property column="DescriptionEng" name="DescriptionEng" not-null="false" type="String"></property>
        <many-to-one name="Address" column="AddressId" not-null="false" cascade="save-update" class="IDI.Domain.Entities.Address,IDI.Domain"></many-to-one>
        <property column="Telephone" name="Telephone" not-null="false" type="String"></property>
        <property column="TelephoneTwo" name="TelephoneTwo" not-null="false" type="String"></property>
        <property column="Fax" name="Fax" not-null="false" type="String"></property>
        <property column="ContactMan" name="ContactMan" not-null="false" type="String"></property>
        <property column="ContactManEng" name="ContactManEng" not-null="false" type="String"></property>
        <property column="Email" name="Email" not-null="false" type="String"></property>        
    </class>
</hibernate-mapping>



<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="IDI.Domain" namespace="IDI.Domain.Entities" >
    <class name="IDI.Domain.Entities.Address,IDI.Domain" table="Address">
        <id name="AddressId" column="AddressId" type="Int32">
            <generator class="native"></generator>
        </id>
        <property name="Street" column="Street" not-null="false" type="String"></property>    
        <property name="Floor" column="floor" not-null="false" type="Int32"></property>
        <property name="Room" column="room" not-null="false" type="Int32"></property>
        <property name="PostalCode" column="postalcode" not-null="false" type="string"></property>
        <many-to-one class="IDI.Domain.Entities.City,IDI.Domain" name="City" update="false" insert="false">
            <column name="CountryCode" sql-type="String" ></column>
            <column name="CityName"  sql-type="String"></column>             
        </many-to-one>
        </class>
</hibernate-mapping>


<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="IDI.Domain" namespace="IDI.Domain.Entities" >
    <class name="IDI.Domain.Entities.City,IDI.Domain" table="Cities">
        <composite-id>
            <key-many-to-one class="IDI.Domain.Entities.Country,IDI.Domain" name="CountryCode" column="CountryCode">
            </key-many-to-one>
            <key-property name="Name" column="Name" type="string"></key-property>
        </composite-id>

    </class>
</hibernate-mapping>

这是我调用公司的代码：

IList<BursaUser> user;
            if(String.IsNullOrEmpty(email) && String.IsNullOrEmpty(company))
                return null;
            ICriteria criteria = Session.CreateCriteria(typeof (BursaUser), "user").CreateCriteria("Company", "comp");
            if(String.IsNullOrEmpty(email) || String.IsNullOrEmpty(company) )
            {
                user = String.IsNullOrEmpty(email) ? 
                    criteria.Add(Expression.Eq("comp.Name", company)).List<BursaUser>() 
                    : criteria.Add(Expression.Eq("user.Email", email)).List<BursaUser>();

            }

最后这是我得到错误的地方：

“用户”已经用上面的代码初始化：

 if (user.Company.Address.City == null)
                    user.Company.Address.City = new City();

谢谢。

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