与野村解析

我正在使用Nokogiri解析HTML，然后获取这些类型元素。

<li data-item="{"title":"where is title","slug":"about some",
    "has_many_images":false,"show_image":"abbxb","created_at":1373737401,
    "show_attr":{"value":"150"},
    "location":"Alabama",
    "category":"Table",
    "is_business":false}">
    //here other many more
</li>

现在我想得到这个data-item，我正在使用：

 page.css("li[data-item]")[0]

我得到了这样的东西：

#<Nokogiri::XML::Element:0x14fc250 name="li" attributes=[#<Nokogiri::XML::Attr:0x14fc178 name="class" value="item">,等。。。

但我想要这样：

"{"title":"where is title","slug":"about some",
        "has_many_images":false,"show_image":"abbxb","created_at":1373737401,
        "show_attr":{"value":"150"},
        "location":"Alabama",
        "category":"Table",
        "is_business":false}"

有什么建议吗？

您可以通过以下选择获得该属性：

page.at_xpath("//li[1]/@data-item").content

编辑

应@Priti的要求，进行更完整的演示：

body = %Q{     
  <body>
    <li data-item='{"title":"where is title","slug":"about some",
      "has_many_images":false,"show_image":"abbxb","created_at":1373737401,
      "show_attr":{"value":"150"},
      "location":"Alabama",
      "category":"Table",
      "is_business":false}'>
    </li>
  </body>
}
page = Nokogiri::XML(body)
result = page.at_xpath("//li[1]/@data-item").content
# "{"title":"where is title","slug":"about some",         "has_many_images":false,"show_image":"abbxb","created_at":1373737401,         "show_attr":{"value":"150"},         "location":"Alabama",         "category":"Table",         "is_business":false}"

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