Rails Json XML Action

JSON

render :json => object

将对象转换为json的风格

Example

class ItemsController < ApplicationController
   def index
      snsd = {'name' =>'Yoona','age' => 24}
 
      render :json => snsd
   end
end

访问http://localhost:3000 /项目/索引,你可以看到json输出

XML

render :xml => object

将对象转换为xml

class ItemsController < ApplicationController
   def index
      snsd = {'name' =>'Yoona','age' => 24}
 
      render :xml => snsd
   end
end

Respond_to

def index
   respond_to do |format|
      format.html
      format.json {render :json => object}
      format.xml {render :xml => object}
   end
end

一般输出HTML,但如果设置隐式,我们想输出json或xml。如何去做?

Example

class ItemsController < ApplicationController
   def index
      @snsd = {'name' => 'Yoona', 'age' => 24}
 
      respond_to do |format|
         format.html
         format.json {render :json => @snsd}
         format.xml {render :xml => @snsd}
      end
   end
end

模板app / views /项目/ index.html.erb

<p>
Name : <%= @snsd["name"] %><br />
Age : <%= @snsd["age"] %>
</p>

http://locahost:3000/items/index
http://localhost:3000/items/index.json
http://localhost:3000/items/index.xml