IOC寄存器实例与问题MVC3，团结和放大器; NHibernate的 - （由codePLEX Unity.MVC3 LIB） [英] IoC Register Instance Issue with MVC3, Unity & NHibernate - (Unity.MVC3 lib from codeplex)

问题描述

我使用的是从 codePLEX 的Unity.MVC3.dll并在尝试为每个请求注册的NHibernate的ISession的实例。按照统一MVC3文档，我应该只需要使用HierarchicalLifetimeManager做到这一点：

I'm using the Unity.MVC3.dll from codeplex and am attempting to register an instance of a NHibernate ISession per request. As per the Unity MVC3 docs I should just have to use the HierarchicalLifetimeManager to accomplish this:

var container = new UnityContainer();
container.RegisterInstance<ISession>(SessionFactory.OpenSession(), new HierarchicalLifetimeManager());
container.RegisterControllers();
DependencyResolver.SetResolver(new UnityDependencyResolver(container));

SessionFactory的是我的Global.asax静态对象。当我添加的Isession 来我的控制器之一，我收到以下错误信息：

SessionFactory is a static object in my Global.asax. When I add ISession to one of my controllers I receive the following error message:

当前类型，NHibernate.ISession，是一个接口，并且不能
  建。是否缺少类型映射？

The current type, NHibernate.ISession, is an interface and cannot be constructed. Are you missing a type mapping?

我想我没必要 RegisterType 时，只注册一个实例？

I thought I didn't need to RegisterType when just registering an instance?

在我的控制器我有：

[Dependency]
public ISession session { get; set; }

我也尝试添加的Isession作为参数传递给我的ActionResult功能之一

I also tried adding ISession as an argument to one of my ActionResult functions

我要补充一点，这个问题是不是NHibernate的结束。配置是成功的，我可以用它来查询从我的数据库信息。

I'll add that the issue is not on NHibernate's end. The configuration is successful and I can use it to query info from my database.

更新

当我不指定一辈子经理它的工作原理，但是，这不会让我我的每个请求一个实例，我所需要的。

When I do not specify the lifetime manager it works, however, this isn't going to get me my "one instance per request" that I need.

我可能要探索Ninject：P

I might have to explore Ninject :p

推荐答案

尝试使用registertype用注塑厂，而不是registerinstance。

Try using registertype with an injection factory rather than registerinstance.

是这样的：

Container.RegisterType<ISession>(new InjectionFactory(c => SessionFectory.OpenSession()), new HierarcicalLifetimeManager());

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