在’escape’中：未定义的方法`gsub’用于＃（NoMethodError）
嗨，我想废弃一个网页“拿链接”转到那个链接和“废弃它”。
require 'rubygems' require 'scrapi' require 'uri' Scraper::Base.parser :html_parser web = "http://......" def sub_web(linksubweb) uri = URI.parse(URI.encode(linksubweb)) end scraper = Scraper.define do array :items process "div.mozaique>div", :items => Scraper.define { process "p>a", :title => :text process "div.thumb>a", :link => "@href" result :title, :link, } result :items end uri = URI.parse(URI.encode(web)) scraper.scrape(uri).each do |pag| link_full = uri + pag.link.to_str puts pag.title sub_web(link_full) puts end 我有以下错误
e $stdout.sync=true;$stderr.sync=true;load($0=ARGV.shift) /Users/sss/web/app/views/admin/topics/webconector.rb Title 1 http://www.mydomain.com/user34/top5 /Users/sss/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/uri/common.rb:304:in `escape': undefined method `gsub' for # (NoMethodError) from /Users/sss/.rvm/rubies/ruby-1.9.3-p448/lib/ruby/1.9.1/uri/common.rb:623:in `escape' from ../app/views/admin/topics/conectaweb.rb:11:in `sub_web' from ../app/views/admin/topics/conectaweb.rb:34:in `block in ' from ../views/admin/topics/conectaweb.rb:29:in `each' from ../app/views/admin/topics/conectaweb.rb:29:in `' from -e:1:in `load' from -e:1:in `' Process finished with exit code 1
尝试使用uri = URI.parse(URI.encode(linksubweb.to_s))这应该工作。 问题是该方法需要一个字符串参数，因此您必须首先将URI::HTTP对象转换为字符串。