NHibernate学习笔记（一）常见异常错误

一、映射配置导致的异常

1. NHibernate.QueryException：could not resolve property
   在使用如下代码中的方法时抛出该异常：
   

   public IList<Entity.Order> GetOrders(Guid customerId,decimal amount)
           {
               using(ISession session = NHibernateHelper.GetSession())
               {
                   IList<Entity.Order> orders = session.CreateCriteria<Entity.Order>()
                       .Add(Restrictions.Eq("Amount", amount))
                       .Add(Restrictions.Eq("CustomerId",customerId))
                       .List<Entity.Order>();  
                   return orders;
               }
           }

   下面是正确的代码：

   public IList<Entity.Order> GetOrders(Guid customerId,decimal amount)
           {
               using(ISession session = NHibernateHelper.GetSession())
               {
                   IList<Entity.Order> orders = session.CreateCriteria<Entity.Order>()
                       .Add(Restrictions.Eq("Amount", amount))
                       .CreateCriteria("Customer")
                       .Add(Restrictions.Eq("CustomerId",customerId))
                       .List<Entity.Order>();  
                   return orders;
               }
           }