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James Robertson http://www.r0bertson.co.uk

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Ruby Servlets

This WEBrick example demonstrates a basic servlet which displays the current time. Source code copied from At the Forge - Getting Started with Ruby [linuxjournal.com].

#!/sw/bin/ruby
require 'webrick'
include WEBrick

# ---------------------------------------------
# Define a new class
class CurrentTimeServlet
  < WEBrick::HTTPServlet::AbstractServlet

  def do_GET(request, response)
    response['Content-Type'] = 'text/plain'
    response.status = 200
    response.body = Time.now.to_s + "\n"
  end
end

# ----------------------------------------------
# Create an HTTP server
s = HTTPServer.new(
  :Port            => 8000,
  :DocumentRoot    => "/usr/local/apache/htdocs/"
)

s.mount("/time", CurrentTimeServlet)

# When the server gets a control-C, kill it
trap("INT"){ s.shutdown }

# Start the server
s.start

e.g. http://localhost:8001/time
output
Mon Mar 10 23:06:58 +0000 2008

Reference: http://www.webrick.org/
to ruby time webrick servlet by jrobertson on Mar 10, 2008
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