global.asax中的NHibernate会话Application_BeginRequest [英] NHibernate Session in global.asax Application_BeginRequest
问题描述
我正在尝试在Global.asax和Application_BeginRequest中启动休眠会话,然后在Global.asax上访问静态SessionFactory以在WCF服务中获取当前会话.
I am trying to start a hibernate session in Global.asax and Application_BeginRequest and then access a static SessionFactory on Global.asax to get the current session in a WCF service.
但是,当我尝试在服务中获取当前会话时,出现对象引用未设置为对象实例"的信息.我正在使用basicHttpBinding访问该服务.
However I get "Object reference not set to an instance of an object" when I try to get the current session inside the service. I am accessing the service using basicHttpBinding.
Global.asax
Global.asax
public class Global : System.Web.HttpApplication
{
public static ISessionFactory SessionFactory { get; private set; }
protected void Application_Start(object sender, EventArgs e)
{
//Initialize session factory and set up mappings
}
protected void Application_BeginRequest(object sender, EventArgs e)
{
var session = SessionFactory.OpenSession();
CurrentSessionContext.Bind(session);
}
protected void Application_EndRequest(object sender, EventArgs e)
{
var session = CurrentSessionContext.Unbind(SessionFactory);
if (session != null)
{
if (session.Transaction != null &&
session.Transaction.IsActive)
{
session.Transaction.Rollback();
}
else
session.Flush();
session.Close();
}
}
}
MyService.svc
MyService.svc
public class MyService : IMyService
{
public void doStuff()
{
//Exception occurs here. Session Factory is not null. But GetCurrentSession() gives exception.
ISession session = Global.SessionFactory.GetCurrentSession();
}
}
休眠配置
<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">...</property>
<property name="current_session_context_class">web</property>
</session-factory>
</hibernate-configuration>
推荐答案
看到以下内容后,我将<property name="current_session_context_class">web</property>
更改为<property name="current_session_context_class">call</property>
:
I changed <property name="current_session_context_class">web</property>
to <property name="current_session_context_class">call</property>
after seeing this: https://groups.google.com/forum/#!topic/nhusers/jo9TJOKXWlI
and it is working
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