Ruby/Network/Webrick Web Server

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access to request and response objects

require "webrick"
class MyServlet < WEBrick::HTTPServlet::AbstractServlet
  def do_GET(request, response)
    response.status = 200
    response.content_type = "text/plain"
    response.body = "Hello, world!"
  end
end
server = WEBrick::HTTPServer.new(:Port => 1234)
server.mount "/", MyServlet
trap("INT"){ server.shutdown }
server.start



find out what URL the user tried to access in his or her browser

require "webrick"
class MyServlet < WEBrick::HTTPServlet::AbstractServlet
  def do_GET(request, response)
    response.status = 200
    response.content_type = "text/plain"
    response.body = "You are trying to load #{request.path}"
  end
end
server = WEBrick::HTTPServer.new(:Port => 1234)
server.mount "/", MyServlet
trap("INT"){ server.shutdown }
server.start



WEBrick is a Ruby library that makes it easy to build an HTTP server with Ruby

require "webrick"
server = WEBrick::GenericServer.new(:Port => 1234)
trap("INT"){ server.shutdown }
server.start do |socket|
  socket.puts Time.now
end
Источник — «http://www.wiki.crossplatform.ru/index.php/Ruby/Network/Webrick_Web_Server»