Rails路线-斜线字符vs哈希字符 [英] Rails Routes - slash character vs hash character

问题描述

在url和rails路由中，使用斜杠字符与井号（井号）字符有什么区别？

In urls and rails routing, what is the difference between using a slash character vs a pound sign (hash sign) character?

这些工作

get "/static_pages/about"
get 'about', to: 'static_pages#about', as: :about

这些不是

get "/static_pages#about"
get 'about', to: 'static_pages/about', as: :about
get 'about', to: '/static_pages#about', as: :about

什么代码控制了此行为，其深层原因是什么？

What code controls this behavior, and what is the deeper reason behind it?

答案：

（两个人回答得很好，我很难选择哪个标记为

(The two people answered it very well, and I had trouble choosing which one to mark as the accepted answer. I wish to state my understanding of the answer in a different way that might help people.)

一旦您使用了/符号，该字符串就会被识别为一个接受的答案。附加在基本网址上的网址字符串。因此，＃字符将被解释为网址的一部分，并且网址不希望使用＃字符。

Once you use the / symbol, the string gets recognized as a url string appended to the base url. So a '#' character will be interpreted as part of the url, and urls don't like to take '#' characters.

在不使用/字符的情况下，第一个单词被以某种方式识别为控制器名称，并在其后跟随一个＃和一个动作名称。

In the case of not using a / character, the first word is recognized somehow as a controller name, which you follow up with a '#' and an action name.

推荐答案

中的＃可以：' static_pages＃about'表示 static_pages_controller 的 about 个动作。语法为 controller＃action 。

The # in to: 'static_pages#about' means about action of static_pages_controller. The syntax is controller#action.

定义时，获取 / static_pages＃about ， static_pages＃about 成为路线的控制者，即＃只是一个字符文字和<$​​ c $ c> #about 并不表示 about 动作。如果 static_pages＃about 控制器不存在，则应该出现 missing：controller 错误。

When you define get "/static_pages#about", static_pages#about becomes the controller for the route i.e. the # is only a character literal and #about does not mean about action. You should get a missing :controller error if static_pages#about controller does not exist.

以下路线定义为您提供 / about 路径，该路径映射到 static_pages / about 控制器的 about 动作，其中 static_pages 可以是名称空间或范围。

The following route definition gives you /about path which maps to static_pages/about controller's about action, where static_pages could either be a namespace or a scope.

get 'about', to: 'static_pages/about', as: :about

以下路径无效，并且由于前导斜线 / 而应引发错误至选项。

The following route is invalid and should throw an error due to the leading slash / in to option.

get 'about', to: '/static_pages#about', as: :about

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