批量 url 下载文件

from_url_download_file

#! /usr/bin/ruby -w
# coding:utf-8
require 'net/http'
require 'uri'

#str = 'http://htmljs.b0.upaiyun.com/uploads/1460943735482-f24c0e5ca2f9d61b48cdd7c215226849.jpg!bac'

def downloadurl(str)
  uri = URI.parse(str)
  filename = str.split('/')[-1].chomp

  http_object = Net::HTTP.new(uri.host, uri.port)
  http_object.use_ssl = true if uri.scheme == 'https'
  response = Net::HTTP.get_response(uri)
  f = open(filename, 'wb')
  f.write(response.body)
  f.close()

  filename
end

file = 'yu2.txt'
def get_uri(file) 
  File.open(file,'r') do |f|
    f.each do |line|
      downloadurl(line)
     end
   end
end

get_uri(file)