[Ruby乐趣]查看外网IP地址

 

#!/usr/bin/ruby -w                  #
# (c)2006 Suninny's Rails Theme     #
#   http://blog.youkuaiyun.com/rails      #
#####################################

require 'socket'
require 'open-uri'

inner_ip = Socket.getaddrinfo(Socket.gethostname, Socket::AF_INET)[0][3]

html = URI.parse("http://www.whatismyip.com").read
outer_ip = html.scan(/(([0-9]{1,3}.?){4})/).flatten.first

puts "内网IP地址：#{inner_ip}"
puts "外网IP地址：#{outer_ip}"