Ruby On Rails本身是Rack应用吗？

Question

所以我从Rack文档中推断出，但也许我错了......

Answer 1

It sure is. You can write rack middleware to add additional routing handlers before the request hits the rails application.

http://guides.rubyonrails.org/rails_on_rack.html

Answer 2

此外，您还可以运行“rake middleware”来查看当前安装的机架模块。