Ruby Net :: HTTP超时
我正在尝试编写我的第一个Ruby程序，但是有问题。 该代码必须通过HTTP下载32个MP3文件。 它实际上下载了一些，然后是超时。
我尝试设置超时时间，但没有区别。 在Windows下运行代码，Cygwin和Mac OS X具有相同的结果。
这是代码：
require 'rubygems' require 'open-uri' require 'nokogiri' require 'set' require 'net/http' require 'uri' puts "\n Up and running!\n\n" links_set = {} pages = ['http://www.vimeo.com/siai/videos/sort:oldest', 'http://www.vimeo.com/siai/videos/page:2/sort:oldest', 'http://www.vimeo.com/siai/videos/page:3/sort:oldest'] pages.each do |page| doc = Nokogiri::HTML(open(page)) doc.search('//*[@href]').each do |m| video_id = m[:href] if video_id.match(/^\/(\d+)$/i) links_set[video_id[/\d+/]] = m.children[0].to_s.split(" at ")[0].split(" -- ")[0] end end end links = links_set.to_a p links cookie = '' file_name = '' open("http://www.tubeminator.com") {|f| cookie = f.meta['set-cookie'].split(';')[0] } links.each do |link| open("http://www.tubeminator.com/ajax.php?function=downloadvideo&url=http%3A%2F%2Fwww.vimeo.com%2F" + link[0], "Cookie" => cookie) {|f| puts f.read } open("http://www.tubeminator.com/ajax.php?function=convertvideo&start=0&duration=1120&size=0&format=mp3&vq=high&aq=high", "Cookie" => cookie) {|f| file_name = f.read } puts file_name Net::HTTP.start("www.tubeminator.com") { |http| #http.read_timeout = 3600 # 1 hour resp = http.get("/download-video-" + file_name) open(link[1] + ".mp3", "wb") { |file| file.write(resp.body) } } end puts "\n Yay!!" 这是例外：
/Users/test/.rvm/rubies/ruby-1.9.2-preview1/lib/ruby/1.9.1/net/protocol.rb:140:in `rescue in rbuf_fill': Timeout::Error (Timeout::Error) from /Users/test/.rvm/rubies/ruby-1.9.2-preview1/lib/ruby/1.9.1/net/protocol.rb:134:in `rbuf_fill' from /Users/test/.rvm/rubies/ruby-1.9.2-preview1/lib/ruby/1.9.1/net/protocol.rb:116:in `readuntil' from /Users/test/.rvm/rubies/ruby-1.9.2-preview1/lib/ruby/1.9.1/net/protocol.rb:126:in `readline' from /Users/test/.rvm/rubies/ruby-1.9.2-preview1/lib/ruby/1.9.1/net/http.rb:2138:in `read_status_line' from /Users/test/.rvm/rubies/ruby-1.9.2-preview1/lib/ruby/1.9.1/net/http.rb:2127:in `read_new' from /Users/test/.rvm/rubies/ruby-1.9.2-preview1/lib/ruby/1.9.1/net/http.rb:1120:in `transport_request' from /Users/test/.rvm/rubies/ruby-1.9.2-preview1/lib/ruby/1.9.1/net/http.rb:1106:in `request' from /Users/test/.rvm/rubies/ruby-1.9.2-preview1/lib/ruby/1.9.1/open-uri.rb:312:in `block in open_http' from /Users/test/.rvm/rubies/ruby-1.9.2-preview1/lib/ruby/1.9.1/net/http.rb:564:in `start' from /Users/test/.rvm/rubies/ruby-1.9.2-preview1/lib/ruby/1.9.1/open-uri.rb:306:in `open_http' from /Users/test/.rvm/rubies/ruby-1.9.2-preview1/lib/ruby/1.9.1/open-uri.rb:767:in `buffer_open' from /Users/test/.rvm/rubies/ruby-1.9.2-preview1/lib/ruby/1.9.1/open-uri.rb:203:in `block in open_loop' from /Users/test/.rvm/rubies/ruby-1.9.2-preview1/lib/ruby/1.9.1/open-uri.rb:201:in `catch' from /Users/test/.rvm/rubies/ruby-1.9.2-preview1/lib/ruby/1.9.1/open-uri.rb:201:in `open_loop' from /Users/test/.rvm/rubies/ruby-1.9.2-preview1/lib/ruby/1.9.1/open-uri.rb:146:in `open_uri' from /Users/test/.rvm/rubies/ruby-1.9.2-preview1/lib/ruby/1.9.1/open-uri.rb:669:in `open' from /Users/test/.rvm/rubies/ruby-1.9.2-preview1/lib/ruby/1.9.1/open-uri.rb:33:in `open' from test.rb:38:in `block in ' from test.rb:37:in `each' from test.rb:37:in `'
我也非常感谢您对其余代码的评论。
对于Ruby 1.8，我用它来解决我的超时问题。 在我的代码中扩展Net :: HTTP类并使用默认参数重新初始化，包括我自己的read_timeout的初始化，我认为应该保持理智。
require 'net/http' # Lengthen timeout in Net::HTTP module Net class HTTP alias old_initialize initialize def initialize(*args) old_initialize(*args) @read_timeout = 5*60 # 5 minutes end end end
您的超时不在您设置超时的代码中。 就在这里，你使用open-uri：
open("http://www.tubeminator.com/ajax.php?function=downloadvideo&url=http%3A%2F%2Fwww.vimeo.com%2F" + link[0],
您可以为open-uri设置读取超时，如下所示：
#!/usr/bin/ruby1.9 require 'open-uri' open('http://stackoverflow.com', 'r', :read_timeout=>0.01) do |http| http.read end # => /usr/lib/ruby/1.9.0/net/protocol.rb:135:in `sysread': \ # => execution expired (Timeout::Error) # => ... # => from /tmp/foo.rb:5:in `'
:read_timeout对于Ruby 1.9来说是新的（它不在Ruby 1.8中）。 0或nil表示“没有超时”。