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