WCF，NHibernate和Ninject的每次请求会话实现 [英] session-per-request implementation for WCF, NHibernate, and Ninject

问题描述

我正在尝试在WCF应用程序中实现每个请求会话模型，并且我已经阅读了无数有关此主题的文档，但是似乎没有完整的演示.实际上，我遇到了一些非常有用的文章，例如:

I am trying to implement a session-per-request model in my WCF application, and I have read countless documents on this topic, but looks like there is not a complete demonstration of this. I actually came across some very useful articles such as this one:

NHibernate的ISession，其作用域为单个WCF调用

但是这些都是从过去NHibernate和Ninject没有WCF特定实现的时代开始的，因此它们通过实现其自定义服务提供程序来实现我所需要的功能.通过使用它们的模块来保持事物的一致性，但是我在这里结束了...

but these are all from the old days when NHibernate and Ninject did not have WCF specific implementations, therefore they achieved what I need by implementing their custom service providers, etc. Since both Ninject and NHibernate have WCF support now, I want to keep things consistent by using their modules, but I ended up here...

基本设置和流程应如下所示:

The basic setup and flow should be something like this:

1. 在休眠配置中将CurrentSessionContext设置为WcfOperationSessionContext
2. 在服务启动，开始请求或初始化时间附近的任何时候，打开会话并将其绑定到当前上下文
3. 存储库使用SessionFactory.GetCurrentSession()方法获取当前会话实例
4. 在生命周期结束时取消绑定并关闭会话

最初的问题是我无法访问wcf生命周期来处理绑定.深入研究ninject代码之后，我设法将我的方法挂接到ServiceHost的Open/Closes事件，而没有做太多更改，但是后来我无法访问OperationContext，因为它是线程静态的.

My initial problem was that I wasn't able to access to the wcf lifecycle to handle my bindings. After digging into the ninject code a bit, I managed to hook my methods to ServiceHost's Opening / Closing events without changing much, but then I wasn't able to access to the OperationContext since it is thread-static.

后来我尝试启用asp.net兼容性并使用Application_BeginRequest和Application_EndRequest，它看起来非常有前途，但是我认为这不是最好的解决方案，因为我应该将内容绑定到服务实例，而不是http请求.

Later I tried enabling asp.net compatibility and using Application_BeginRequest and Application_EndRequest, and it looked very promising, but I don't think that's the best solution since I should be binding stuff to the service instance, rather than the http request.

有人使用ninject的内置wcf扩展库实现了这一目标吗?或对我可能做错的事情有什么想法?

Has anyone ever achieved this using ninject's built-in wcf extension libraries? Or any ideas on what I might be doing wrong?

推荐答案

我已在

I have implemented per request session lifetime with the help of IDispatchMessageInspector. Probably you could implement custom lifetime manager for Ninject to achieve per web request.

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