命名查询中的 NHibernate 错误

Question

我有一个 class:

public class OrderDetails
{
    public virtual int OrderNumber { get; set; }
    public virtual DateTime OrderDate { get; set; }
    public virtual int ProductCode { get; set; }
    public virtual string ProductName { get; set; }
    public virtual int Quantity { get; set; }
    public virtual decimal Price { get; set; }
}

并为其映射 .hbm.xml 文件：

<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" auto-import="true" assembly="AsmName" namespace="AsmName.Models">
  <sql-query name="GetOrdersByDate" callable="true">
    <return class="AsmName.Models.OrderDetails">
      <return-property name="OrderNumber" column="ID"/>
      <return-property name="OrderDate" column="OrderDate"/>
      <return-property name="ProductCode" column="productCode"/>
      <return-property name="ProductName" column="Name"/>
      <return-property name="Quantity" column="Quantity"/>
      <return-property name="Price" column="UnitPrice"/>
    </return>
    exec [dbo].[sp_OrdersByDate] :dateFrom, :dateTo
  </sql-query>
</hibernate-mapping>

所以，我正在尝试从 db 调用存储过程并将其映射到 class。在 configuration.BuildSessionFactory() 上；我得到一个例外 "Errors in named query:{GetOrdersByDate}"。内部异常为空。堆栈跟踪是：

 NHibernate.Impl.SessionFactoryImpl..ctor(Configuration cfg, IMapping mapping, Settings settings, EventListeners listeners)
   в NHibernate.Cfg.Configuration.BuildSessionFactory()
   в Fuse8Test.Models.DAL.NHibirnateSession.OpenSession() в c:\users\itenberg\documents\visual studio 2017\Projects\Fuse8Test\Fuse8Test\Models\DAL\NHibirnateSession.cs:строка 19
   в Fuse8Test.Models.DAL.DBContext.GetReport(DateTime dateFrom, DateTime dateTo) в c:\users\itenberg\documents\visual studio 2017\Projects\Fuse8Test\Fuse8Test\Models\DAL\DBContext.cs:строка 15
   в Fuse8Test.Controllers.HomeController.Index() в c:\users\itenberg\documents\visual studio 2017\Projects\Fuse8Test\Fuse8Test\Controllers\HomeController.cs:строка 17
   в lambda_method(Closure , ControllerBase , Object[] )
   в System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters)
   в System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters)
   в System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
   в System.Web.Mvc.Async.AsyncControllerActionInvoker.<BeginInvokeSynchronousActionMethod>b__39(IAsyncResult asyncResult, ActionInvocation innerInvokeState)
   в System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult`2.CallEndDelegate(IAsyncResult asyncResult)
   в System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResultBase`1.End()
   в System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult)
   в System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3d()
   в System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass46.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3f()

我搞不懂这是怎么回事。有人可以帮助我吗？

Answer 1

虽然称为命名查询...它们仍然与我们的 ORM 世界相关。对于 CLASS，我们需要一些 （甚至是基本的） 映射。添加例如这个，一切都会起作用：

<class name="AsmName.Models.OrderDetails" >
    <id name="OrderNumber" />
    <property name="OrderNumber" />
    <property name="OrderDate" />
    <property name="ProductCode" />
    <property name="ProductName" />
    <property name="Quantity" />
    <property name="Price" />
</class>

命名查询中的 NHibernate 错误

NHibernate Errors in named query

c#

nhibernate

nhibernate-mapping