Url rails 4中的自定义路由不工作

我已经创建了自定义路由以路由到新闻模型

    resources :news, only: [:index] do
     collection do
      get 'page/:page', action: :index
     end
    end

    get "news/:id(/p/:p)", to: 'news#show', as: 'news'

像这样生成url

http://localhost:3000/news/4/page/2  index.html.erb  is right

和show.html.erb

<%= link_to 'news', news_path(@news, '2')%>

I hope generate url http://localhost:3000/news/4/p/2  

but generate http://localhost:3000/news/4?p=2

我希望生成urlhttp://localhost:3000/news/4/p/2  
但是产生http://localhost:3000/news/4?p=2

我认为您遇到了路由冲突，请更改此选项：

get "news/:id(/p/:p)", to: 'news#show', as: 'news'

为此：

get "news/:id(/p/:p)", to: 'news#show', as: 'news_page'

以及使用此链接：

<%= link_to 'News', news_page_path(@news, '2')%>

“news/：id（/p/：p）”-括号代表什么？把它们拿出来。在url（/p/：p）可有可无，url或者你可以做一个“rake路由”和post吗？