ASP.NET MVC 6中的Application_PreSendRequestHeaders和Application_BeginRequest（ASP.NET 5）

Question

如何在ASP.NET 5（MVC6）中使用這些方法。在MVC5中，我在Global.asax中使用了它，現在呢？啓動課也許？

protected void Application_PreSendRequestHeaders(object sender, EventArgs e) 
     { 
      HttpApplication app = sender as HttpApplication; 
      app?.Context?.Response.Headers.Remove("Server"); 
     } 

     protected void Application_BeginRequest(object sender, EventArgs e) 
     { 
      if (this.Request.Url.Host.StartsWith("www") || this.Request.Url.IsLoopback) return; 
      var url = new UriBuilder(this.Request.Url) { Host = "www." + this.Request.Url.Host }; 
      this.Response.RedirectPermanent(url.ToString(), endResponse: true); 
     } 

謝謝！

Answer 1

中間件！

public void Configure(IApplicationBuilder app, ILoggerFactory loggerfactory) 
{ 
    app.Use(next => async context => 
    { 
     context.Response.Headers.Remove("Server"); 
     await next.Invoke(context); 
    }); 

    app.Use(next => async context => { 
     if (context.Request.Path.ToString().StartsWith("www")) 
      await next.Invoke(context); 
     else 
      context.Response.Redirect("www" + context.Request.Path.ToString()); 
    }); 
} 

這是一個很好的tutorial。