如何在Rails中发送简单的json响应？

Question

我需要发送json响应取决于用户在输入中输入的数据,但我没有发送简单的json请求.

我按照这篇文章 - http://paydrotalks.com/posts/45-standard-json-response-for-rails-and-jquery.

添加了MimeType:

Mime::Type.register_alias "application/json", :jsonr, %w( text/x-json )  

在我的控制器中:

 def checkname
  respond_to do |format|
    format.jsonr do
      render :json => { 
         :status => :ok, 
         :message => "Success!",
         :html => "<b>congrats</b>"
      }.to_json
     end  
  end
end

但屏幕是空的,当我对此操作组成GET响应时,这里是来自fiddler2的响应代码:

    HTTP/1.1 406 Not Acceptable
   Content-Type: text/html; charset=utf-8
   X-UA-Compatible: IE=Edge
   Cache-Control: no-cache
   X-Request-Id: 14a8467908d9ce322d054607efdacf92
   X-Runtime: 0.011000
   Content-Length: 1
   Connection: keep-alive
  Server: thin 1.4.1 codename Chromeo

我做错了什么？

Answer 1

不确定处理自定义MIME,但是对于渲染JSON,这应该工作:

def testme
  respond_to do |format|
    msg = { :status => "ok", :message => "Success!", :html => "<b>...</b>" }
    format.json  { render :json => msg } # don't do msg.to_json
  end
end

如果您说明您正在使用哪个版本的Ruby和Rails,它也可能有所帮助.

Answer 2

我通常使用此方法返回json数据:

msg = {:token => token, :courseId => courseId}
render :json => msg

Answer 3

一种简单的方法是：

def my_action 

 render :json => {:name => "any name"}

end

Answer 4

最简单的方法是 render json: {foo: 'bar'}