ruby cookie用法

在ruby中cookie與其它程式設計語言一樣，有expires,domain,path,secure,name這些參考，下面先看個簡單cookie執行個體。

cookie和session儲存的都是字串，其它類型的資料類型會強制轉換成字串的形式，所以，如果想要要在cookie或session儲存對象資料，必須先將其轉化成位元流形式，訪問的時候再將其轉換成對象的形式，這樣才能在cookie或session中傳遞對象資料
#!/usr/bin/ruby

require "cgi"
cgi = CGI.new("html4")
cookie = CGI::Cookie.new('name' => 'mycookie',
                         'value' => 'Zara Ali',
                         'expires' => Time.now + 3600)
cgi.out('cookie' => cookie) do
   cgi.head + cgi.body { "Cookie stored" }
end

給予cookie賦值方法

class HelloController < ApplicationController
      def set_cookie
            cookies[:my_name] = "AAAA"
            redirect_to :action => "show_cookie"
      end
      def show_cookie
            my_name = cookies[:my_name]
            render(:text => "Hello #{my_name}!")
      end
end

輸出所有cookie

#!/usr/bin/ruby

require "cgi"
cgi = CGI.new("html4")
cookie = cgi.cookies['mycookie']
cgi.out('cookie' => cookie) do
   cgi.head + cgi.body { "Flavor: " + cookie[0] }
end

Attribute	Returned Value
name	Cookie name
value	An array of cookie values
path	The cookie's path
domain	The domain
expires	The expiration time (as a Time object)
secure	True if secure cookie