Ruby-on-rails 如何在 Rails 控制器中返回 HTTP 204
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How to return HTTP 204 in a Rails controller
提问by Nonos
This seems to be basic but I'm a Ruby/Rails beginner. I need to simply return HTTP 204 in a controller. Would
这似乎是基本的,但我是 Ruby/Rails 初学者。我只需要在控制器中返回 HTTP 204。将
respond_to do |format|
format.html
end
return a 204?
返回 204?
回答by Eliot Sykes
head :no_content
Tested with Rails 3.2.x, 4.x. It causes the controller method to respond with the 204 No Content HTTP status code.
使用 Rails 3.2.x、4.x 进行测试。它导致控制器方法以 204 No Content HTTP 状态代码响应。
An example of using this inside a controller method named foobar:
在名为 的控制器方法中使用它的示例foobar:
def foobar
head :no_content
end
回答by Michael Kohl
回答by thorsten müller
If you don't want to render anything at all you can do this:
如果你根本不想渲染任何东西,你可以这样做:
render :nothing => true, :status => 204
or like this:
或者像这样:
render :nothing => true, :status => 204 and return
Or you can use the :status => 204part with any other render command
或者您可以将该:status => 204零件与任何其他渲染命令一起使用

