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Grabbing the Contents of a Web Page
CodeExpectedActual
require 'open-uri'
puts open('http://www.oreilly.com/').read(200)
 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
        "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
 
require 'net/http'
response = Net::HTTP.get_response('www.oreilly.com', '/about/')
response.code
 "200" "200" 
response.body.size
 21835 21835 
response['Content-type']
 "text/html; charset=ISO-8859-1" "text/html; charset=ISO-8859-1" 
puts response.body[0,200]
 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">


<html>
<head>
<meta http-equiv="content-type" content="text/html; c
 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
   "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">


<html>
<head>
<meta http-equiv="content-type" content="text/html; c
 
require 'uri'
Net::HTTP.get(URI.parse("http://www.oreilly.com"))
Net::HTTP.get_response(URI.parse("http://www.oreilly.com/about/"))
puts "Success!" if response.is_a? Net::HTTPOK
 
Success!
 
Success!
 
puts case response.code[0] # Check the first byte of the response code.
  when ?1 then "Status code indicates an HTTP informational response."
  when ?2 then "Status code indicates success."
  when ?3 then "Status code indicates redirection."
  when ?4 then "Status code indicates client error."
  when ?5 then "Status code indicates server error."
  else "Non-standard status code."
end
 
Status code indicates success.
 
Status code indicates success.
 
response['Server']
 "Apache/1.3.34 (Unix) PHP/4.3.11 mod_perl/1.29" "Apache/1.3.34 (Unix) PHP/4.3.11 mod_perl/1.29" 
response['SERVER']
 "Apache/1.3.34 (Unix) PHP/4.3.11 mod_perl/1.29" "Apache/1.3.34 (Unix) PHP/4.3.11 mod_perl/1.29" 
response.each_key { |key| puts key }
 
x-cache
p3p
content-type
date
server
transfer-encoding
 
x-cache
p3p
content-type
date
server
transfer-encoding
 
Net::HTTP.get_response('www.oreilly.com', '/about/') do |response|
  response.read_body do |segment|
    puts "Received segment of #{segment.size} byte(s)!"
  end
end
 
Received segment of 614 byte(s)!
Received segment of 1024 byte(s)!
Received segment of 848 byte(s)!
Received segment of 1024 byte(s)!
...
 
Received segment of 614 byte(s)!
Received segment of 424 byte(s)!
Received segment of 1024 byte(s)!
Received segment of 424 byte(s)!
Received segment of 1024 byte(s)!
Received segment of 424 byte(s)!
Received segment of 43 byte(s)!
Received segment of 1019 byte(s)!
Received segment of 424 byte(s)!
Received segment of 1024 byte(s)!
Received segment of 424 byte(s)!
Received segment of 278 byte(s)!
Received segment of 739 byte(s)!
Received segment of 424 byte(s)!
Received segment of 1024 byte(s)!
Received segment of 385 byte(s)!
Received segment of 1018 byte(s)!
Received segment of 1024 byte(s)!
Received segment of 848 byte(s)!
Received segment of 1024 byte(s)!
Received segment of 1024 byte(s)!
Received segment of 848 byte(s)!
Received segment of 1024 byte(s)!
Received segment of 424 byte(s)!
Received segment of 1024 byte(s)!
Received segment of 424 byte(s)!
Received segment of 6 byte(s)!
Received segment of 1011 byte(s)!
Received segment of 424 byte(s)!
Received segment of 1024 byte(s)!
Received segment of 970 byte(s)!