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]
我得到的是这样的东西：
#<Nokogiri::XML::Element:0x14fc250 name="li" attributes=[#<Nokogiri::XML::Attr:0x14fc178 name="class" value="item">,等等......
但我想这样：
"{"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？
答案 0 :(得分：2)
您可以使用以下选项获取该属性：
page.at_xpath("//li[1]/@data-item").content
修改
在@ Priti的要求下进行更完整的演示：
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}"