Question

我有以下代码：

page = Net::HTTP.get_response(URI.parse('http://www.enhancetv.com.au/tvguide/rss/melbournerss.php')).body rescue nil
show_info = Hash.from_xml(page).to_json
puts show_info

哪个输出以下JSON：

{"rss":{"version":"2.0","channel":{"title":"EnhanceTV Melbourne TV Guide ","description":null,"link":"http://www.enhancetv.com.au","lastBuildDate":"Wed, 21 Dec
2011 10:25:55 1000","generator":"FeedCreator 1.7.2","item":[{"title":"Toasted TV - TEN - 07:00:00 - 21/12/2011","link":"http://www.enhancetv.com.au/tvguide/","d
escription":"Join the team for the latest in gaming, sport, gadgets, pop culture, movies, music and other seriously fun stuff! Featuring a variety of your favou
rite cartoons."},{"title":"Totally Wild - TEN - 08:00:00 - 21/12/2011","link":"http://www.enhancetv.com.au/tvguide/","description":"The Totally Wild team brings
 you the latest in action, adventure and wildlife from Australia and around theglobe."},{"title":"Explore: Africa&apos;s Rift Valley - SBS ONE - 19:30:00 - 21/
12/2011","link":"http://www.enhancetv.com.au/tvguide/","description":"Simon Reeve leads a team of journalists on a spectacular journey down East Africa&apos;s R
ift Valley. From the tiny country of Djibouti, which is the centre of America&apos;s military presence in Africa, to the wide open plains of Kenya, the team enc
ounter awe-inspiring landscapes, rich culture and amazing wildlife."}]}}}

首先，我希望能够遍历每个项目。

这是我到目前为止所做的，但是它会引发错误。我不完全确定如何正确循环解析JSON：

result = JSON.parse(show_info) # convert JSON data to native ruby

result["channel"].each do |a|
    puts a['title']
    puts a['description']
    puts a['link']
end

这会出现以下错误：

scraper.rb:118:in `<main>': undefined method `each' for "rss":String (NoMethodEr
ror)

然后，我希望能够在split上执行"title"，以便我可以将时间和日期转换为DateTime对象，以便稍后使用。

提前致谢。

Answer 1

我决定使用Nokogiri来解析XML而不是将XML转换为JSON。

感谢您的帮助。

Ruby / Rails - 解析JSON并拆分对象以转换为datetime

1 个答案: