您可以使用范围：

scope ":username", :as => "user" do
  resources :things
end

将此与code> to_param 在用户型号上：

Combine this with to_param on the user model:

def to_param
  username
end

你会有路由，如 / username / things 。注意，用户名不应包含任何点，斜线或标准URI字符。您可能希望在用户名的末尾夹上参数化。确保。

And you'll have routes such as /username/things. Be careful though, the username shouldn't contain any dots, forward slashes or standard URI characters. You may want to chuck a parameterize on the end of username to make sure.