2

我对 Ruby 真的很陌生（第一天！），我在这里苦苦挣扎。我正在尝试结合 Typhoeus 构建一个 rss 解析器，因为我正在解析 100 多个提要，并且还因为我想让它工作。

这就是我的代码：

require 'typhoeus'
require 'feedzirra'

feed_urls = ["feed1", "feed2"]

hydra = Typhoeus::Hydra.new
feeds = {}
entry = {}
feed_urls.each do |feed|
  r = Typhoeus::Request.new(feed)
  r.on_complete do |response|
    feeds[r.url] = response.body
    feeds[r.url] = Feedzirra::Feed.parse(response.body)
    entry = feeds.entries.each do |entry|
      puts entry.title
    end
    hydra.queue r
  end
end

hydra.run

我确定这是一些语法问题。我仍然有一些困难时期。例如，;尽管我在编写 PHP 时总是忘记它，但我总是保持关闭行。那么，也许有人可以帮忙？在没有台风的情况下获得饲料结果并不难。

编辑：

>> puts feeds.entries.inspect
[["http://feedurl", #<Feedzirra::Parser::AtomFeedBurner:0x1023b53f0 @title="Paul Dix Explains Nothing", @entries=[#<Feedzirra::Parser::AtomFeedBurnerEntry:0x1023b05d0 @published=Thu Jan 13 16:59:00 UTC 2011, @author="Paul Dix", @summary="Earlier this week I had the opportunity to sit with six other people from the NYC technology scene and talk to NYC Council Speaker Christine Quinn and a few members of her staff. Charlie O'Donnell organized the event to help...", @updated=Thu Jan 13 17:55:31 UTC 2011, @title="Water water everywhere and not a drop to drink: The Myth and Truth of the NYC engineer shortage", @entry_id="tag:typepad.com,2003:post-6a00d8341f4a0d53ef0148c793f692970c", @content="....

所以，我至少得到了一些东西。

4

2 回答 2

2

您似乎在 on_complete 块内排队。您不应该在 feed_urls.each 块中排队吗？或者，也许您应该在完成所有请求后查看所有条目？像这样：

hydra = Typhoeus::Hydra.new
feeds = {}
entry = {}
feed_urls = ["feed1", "feed2"]

feed_urls.each do |feed|
  r = Typhoeus::Request.new(feed)
  r.on_complete do |response|
      feeds[r.url] = response.body
      feeds[r.url] = Feedzirra::Feed.parse(response.body)
  end

  hydra.queue r
end

hydra.run

feeds.entries.each do |feed|
  puts "-- " + feed[1].title

  feed[1].entries.each do |entry|
    puts entry.title
  end
end
于 2011-06-10T23:54:56.800 回答
0

您在end块的末尾缺少一个。如果你一致地缩进你的代码，你会看到这个漏洞：

require 'typhoeus'
require 'feedzirra'
feed_urls = ["feed1", "feed2"]    
hydra = Typhoeus::Hydra.new
feeds = {}
entry = {}
feed_urls.each do |feed|
  r = Typhoeus::Request.new(feed)
  r.on_complete do |response|
    feeds[r.url] = response.body
    feeds[r.url] = Feedzirra::Feed.parse(response.body)
    entry = feeds.entries.each do |entry|
      puts entry.title
    end
    hydra.queue r
  end

### You need an 'end' on this line to close the `each` ###

hydra.run

欢迎使用 Ruby 和 Stack Overflow！:)

于 2011-06-10T23:24:19.563 回答