将参数传递给OWIN主机 [英] Pass a parameter to OWIN host

问题描述

我正在使用OWIN自托管ASP.NET Web API和SignalR.我使用以下代码启动服务器(在控制台应用程序上):

I'm self-hosting ASP.NET Web API and SignalR using OWIN. I start the server (on a console app) with this code:

using (WebApplication.Start<Startup>(url))
{
    Console.WriteLine("Running...");
    Console.ReadLine();
}

这很好.但是现在我需要将参数(对象)传递给Startup类.该怎么办?

This works fine. But now I need to pass a parameter (an object) to the Startup class. How can this be done?

推荐答案

WebApplication.Start方法具有一个接受IServiceProvider作为参数的重载，因此可以注入我想要的数据.

The WebApplication.Start method has an overload that accepts a IServiceProvider as parameter, so it is possible to inject the data I want.

IServiceProvider serviceProvider = DefaultServices.Create(defaultServiceProvider =>
{
    defaultServiceProvider.AddInstance<IMyInterface>(myInstance);
});

using (WebApplication.Start<Startup>(serviceProvider, url)){ ... }

现在，在我的Startup类上，我只需要创建一个接收IMyInterface的构造函数:

Now, on my Startup class I only need to create a constructor that receives the IMyInterface:

public Startup(IMyInterface myInstance)
{
    ...
}

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