在下面的示例中,我希望anemone只在根url(example.com)上执行。我不确定我是否应该应用页面上的方法,如果是,我需要什么样的模式。
require 'anemone'
Anemone.crawl("http://www.example.com/") do |anemone|
anemone.on_pages_like(???) do |page|
# some code to execute
end
end
最佳答案
require 'anemone'
Anemone.crawl("http://www.example.com/", :depth_limit => 1) do |anemone|
# some code to execute
end
您还可以在选项散列中指定以下内容,以下是默认值:
# run 4 Tentacle threads to fetch pages
:threads => 4,
# disable verbose output
:verbose => false,
# don't throw away the page response body after scanning it for links
:discard_page_bodies => false,
# identify self as Anemone/VERSION
:user_agent => "Anemone/#{Anemone::VERSION}",
# no delay between requests
:delay => 0,
# don't obey the robots exclusion protocol
:obey_robots_txt => false,
# by default, don't limit the depth of the crawl
:depth_limit => false,
# number of times HTTP redirects will be followed
:redirect_limit => 5,
# storage engine defaults to Hash in +process_options+ if none specified
:storage => nil,
# Hash of cookie name => value to send with HTTP requests
:cookies => nil,
# accept cookies from the server and send them back?
:accept_cookies => false,
# skip any link with a query string? e.g. http://foo.com/?u=user
:skip_query_strings => false,
# proxy server hostname
:proxy_host => nil,
# proxy server port number
:proxy_port => false,
# HTTP read timeout in seconds
:read_timeout => nil
我个人的经验是,银莲花不是很快,有很多角落案件。文档是缺乏的(正如您所经历的),作者似乎没有维护项目。YMMV。我很快就试过了,但没有玩得那么多,但似乎更快了。没有基准,对不起。