我有这样的代码：
<%= link_to "New User", new_user_path, :class => "button" %><br />
它工作正常，但是当我将其更改为，
<%= button_to "New User", new_user_path, :class => "button" %><br />
我得到这个错误
无路由匹配[POST]“/用户/新”
任何帮助都将不胜感激。
Answer 1:
耶稣罗德里格斯是正确的约POST和GET，但如果你真的需要的按钮，你可以简单地覆盖默认的方法：
<%= button_to "New User", new_user_path, :class => "button", :method => :get %>
Answer 2:
The "link_to" is looking for a /users/new using GET.
The "button_to" is looking for a /users/new using POST
If you create the routes for a controller using:
resources :user
By default, /users/new is a GET and not POST so, the second line doesn't find any route.
If you are thinking to change that action to POST I think that you should forget about it.
Answer 3:
而不是强迫button_to使用非默认的方法，你也可以发送一个类的link_to。
<%= link_to "New User", new_user_path, :class => "button" %>
Answer 4:
button_to默认为POST和的link_to默认为GET，这就是为什么links_to工作。 您可以强制button_to使用GET：
<%= button_to "New User", new_user_path, :class => "button", :method => :get %>
你可以在这里获取有关button_to选项的详细信息： http://api.rubyonrails.org/classes/ActionView/Helpers/UrlHelper.html#method-i-button_to
文章来源: “No route matches [POST]” when changing link_to to button_to
