NHibernate不会弹出数据库记录

我是NHibernate的新手，并且一直在使用一些教程。我创建了一个对象（Project）并将其传递给Session.Save（obj）方法。为了测试，我在每个数据库字段中都有默认值，并且该方法返回了主键，但字段为空。我从数据库中删除了默认值，并且出现一个SQL错误“无法在第一个字段中插入NULL”。NHibernate不会弹出数据库记录

下面是工程类：

public class Project 
{ 
    private int _projectId; 
    public virtual int ProjectId 
    { 
     get { return _projectId; } 
     set { _projectId = value; } 
    } 
    private string _projectCode; 
    public virtual string ProjectCode 
    { 
     get { return _projectCode; } 
     set { _projectCode = value; } 
    } 
    private int _customerKey; 
    public virtual int CustomerKey 
    { 
     get { return _customerKey; } 
     set { _customerKey = value; } 
    } 
    private DateTime _insertDate; 
    public virtual DateTime InsertDate 
    { 
     get { return _insertDate; } 
     set { _insertDate = value; } 
    } 
}

这里是映射文件：Project.hbm.xml

<?xml version="1.0" encoding="utf-8" ?> 
<hibernate-mapping 
    xmlns="urn:nhibernate-mapping-2.2" 
    assembly="MosaicCrm.Core" 
    namespace="MosaicCrm.Core"> 
    <class name="Project" > 
     <id name="ProjectId"> 
      <generator class="native"></generator> 
     </id> 
     <properties name="ProjectCode" ></properties> 
     <properties name="CustomerKey"></properties> 
     <properties name="InsertDate"></properties> 
    </class> 
</hibernate-mapping>

下面是配置文件。

<?xml version="1.0" encoding="utf-8" ?> 
<hibernate-configuration xmlns="urn:nhibernate-configuration-2.2"> 
    <session-factory> 
     <property name="connection.provider"> 
      NHibernate.Connection.DriverConnectionProvider 
     </property> 
     <property name="dialect"> 
      NHibernate.Dialect.MsSql2005Dialect 
     </property> 
     <property name="connection.driver_class"> 
      NHibernate.Driver.SqlClientDriver 
     </property> 
     <property name="connection.connection_string"> 
      Data Source=localhost;Initial Catalog=MosaicCrm;Integrated Security=SSPI; 
     </property> 
     <property name='proxyfactory.factory_class'>NHibernate.ByteCode.LinFu.ProxyFactoryFactory, NHibernate.ByteCode.LinFu</property> 
    </session-factory> 
</hibernate-configuration>

这里是控制台应用程序

var config = new Configuration(); 
config.Configure(); 
//config.AddAssembly(typeof(Project).Assembly); 
config.AddAssembly("MosaicCrm.Core"); 

var factory = config.BuildSessionFactory(); 
//TODO: NHibernate access code here 

ISession session = null; 
ITransaction trans = null; 
try 
{ 
    session = factory.OpenSession(); 
    trans = session.BeginTransaction(); 
    var project = new Project(); 
    project.CustomerKey = 12; 
    project.ProjectCode = "ProjectCode"; 
    project.InsertDate = DateTime.Now; 
    session.Save(project); 
    trans.Commit(); 
    int i = project.ProjectId; 
} 
catch (Exception ex) 
{ 
    trans.Rollback(); 
} 
finally 
{ 
    session.Close(); 
}

我在做什么遗漏的片段？

来源

2010-01-17 user50622

迭戈，谢谢。我很感激。 – user50622 2010-01-19 02:58:56

您的映射错误。用于映射属性的元素是property，而不是properties。

来源

2010-01-18 01:04:09

NHibernate不会弹出数据库记录

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