我有一個方法從其他方法調用。此方法創建一個配置對象和ISessionFactory:NHibernate,對象引用(配置)未設置爲對象的實例
private static ISessionFactory sessionFactory()
{
Configuration myConfig = null;
ISessionFactory mySessFac = null;
try
{
myConfig = new Configuration();
if (myConfig != null)
{
myConfig.Configure(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "hibernate.cfg.xml"));
mySessFac = myConfig.BuildSessionFactory();
}
}
catch (Exception e)
{
throw;
}
return mySessFac;
}
的問題是,我在myConfig.Configure(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "hibernate.cfg.xml"));
得到一個錯誤的錯誤是:
對象引用未設置爲一個實例對象
即使這是一個直接的錯誤,我有困難解決它。 下面是一個使用上述方法的方法:
public static IList<Course> RetrieveAllCourses()
{
IList<Course> cList = null;
try
{
using (ISession mySess = sessionFactory().OpenSession())
{
ICriteria criteria = mySess.CreateCriteria<Course>();
cList = criteria.List<Course>();
}
}
catch (Exception e)
{
throw;
}
return cList;
}
我的hibernate.cfg.xml設置爲嵌入式資源
<?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.MsSql2012Dialect</property>
<property name="connection.driver_class">NHibernate.Driver.SqlClientDriver</property>
<property name="connection.connection_string">Data Source=Mnemonics;User ID=Mnmncs;Password=mnmncs;Initial Catalog=database-name;Integrated Security=true</property>
<property name="show_sql">true</property>
<mapping assembly="RManageSystemService"/>
</session-factory>
</hibernate-configuration>
和映射文件也被設置爲嵌入的資源:
<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"
assembly="RManageSystemService"
namespace="RManageSystemService.orm_rman_systm">
<class name="Course" table="dbo.Courses" lazy="false">
<id name="CCode" column="ccode">
<generator class="identity"/>
</id>
<property name="CName" column="cname"/>
<property name="Credits" column="credits"/>
</class>
</hibernate-mapping>
那麼我的代碼有什麼問題?我希望得到一些幫助。