Rails:从URL解析路由信息

###在Rails 3中,您可以执行以下操作:
Rails.application.routes.recognize_path "/accounts/1"
# {:action=>"show", :controller=>"accounts", :id=>"1"}

ActionController::Routing::Routes.recognize_path("/accounts/1",:method=>:get)`
# {:action=>"show":controller=>"accounts",:id=>"1"}