如何打印XPath搜索

Question

我正在尝试用nokogiri解析XML文件：

 require 'nokogiri'
 require 'open-uri'
  @doc = Nokogiri::XML(open('http://xml.pinnaclesports.com/pinnacleFeed.aspx?sportType=E%20Sports&contest=no'))
  @doc.xpath("//event[@league='*LOL*']")
  print @doc.text

在" league"属性中起作用并打印所有包含" LOL"的事件，但是当我创建一个块时，它运行但什么也没打印：

@doc.xpath("//event[@league='*LOL*']").each do |league_element|
   puts "n"+league_element.xpath('league').text
end

Answer 1

require 'nokogiri'
require 'open-uri'
@doc = Nokogiri::XML(open('http://xml.pinnaclesports.com/pinnacleFeed.aspx?sportType=E%20Sports&contest=no'))
events = @doc.xpath("//event[@league='*LOL*']")
puts @doc.children

.children"返回一个新的节点，其中包含节点中所有节点的所有孩子。"您可以使用children.xpath()

继续过滤节点名称和值

例如：

@doc = Nokogiri::XML(open('http://xml.pinnaclesports.com/pinnacleFeed.aspx?sportType=E%20Sports&contest=no'))
events = @doc.xpath("//event[@league='*LOL*']")
puts @doc.children.xpath('//league').text
=> LOL Cham Kor
=> LOL Cham Kor
=> ....

或

@doc.children.each do |item|
  puts item.xpath('//league')
end