nokogiri如何使用

直接来个简单的代码实例就明白啦！

 require 'nokogiri'

 xml_data=<<XML

   <library>

     <NAME><![CDATA[Favorite Books]]></NAME>

     <book ISBN="">

       <title>To Kill A Mockingbird</title>

       <description><![CDATA[Description#1]]></description>

       <author>Harper Lee</author>

     </book>

     <book ISBN="">

       <title>Catcher in the Rye</title>

       <description><![CDATA[This is an extremely intense description.]]></description>

       <author>J. D. Salinger</author>

     </book>

     <book ISBN="">

       <title>Murphy\'s Gambit</title>

       <description><![CDATA[Daughter finds her dad!]]></description>

       <author>Syne Mitchell</author>

     </book>

   </library>

 XML

 # 载入数据

 doc = Nokogiri::XML(xml_data)

 # 使用css获取到结点，遍历读取到Book对象中

 doc.css('book').each do |node|

   children = node.children

   Book.create(

     :isbn => node['ISBN'],

     :title => children.css('title').inner_text,

     :description => children.css('description').inner_text,

     :author => children.css('author').inner_text

   )

 end