i have found the following pages useful in working with my webrick app:

http://shogo.homelinux.org/~ysantoso/webrickguide/html/html_webrick.html
http://segment7.net/projects/ruby/WEBrick/servlets.html
http://www.learningruby.com/usingwebrick.shtml

and of course:

http://www.webrick.org/

and a good google search turns up a few more. 

hth,
:) sean

On Mon, 25 Oct 2004 05:49:58 +0900, Simon Strandgaard
<neoneye / adslhome.dk> wrote:
> The subdirs of the samples/ directory, doesn't contain any README files
> (except samples/drb/).
> 
> For instance I attempted to get webrick to work.. I couldn't find any
> guides on google, on how to run webrick .. so I thought there had to
> be something in the samples dir with ruby. There was these files:
> 
> demo-app.rb         demo-servlet.rb      hello.cgi  httpd.rb
> demo-multipart.cgi  demo-urlencoded.cgi  hello.rb   httpsd.rb
> 
> I started with the first file 'demo-app.rb'.. and nothing happened.
> Then I tried the second file 'demo-multipart.cgi'.. and nothing happened.
> 
> Then I thought ah.. lets try the hello program...
> 
> bash-2.05b$ ruby hello.rb
> bash-2.05b$ ./hello.cgi
> /usr/lib/ruby/1.8/webrick/cgi.rb:139:in `initialize': invalid CGI environment
> (WEBrick::CGI::CGIError)
>         from /usr/lib/ruby/1.8/webrick/cgi.rb:43:in `new'
>         from /usr/lib/ruby/1.8/webrick/cgi.rb:43:in `start'
>         from ./hello.cgi:11
> bash-2.05b$
> 
> Still no luck.
> 
> Finally I tried 'httpd.rb' and it webrick began working for me.
> 
> bash-2.05b$ ruby httpd.rb
> [2004-10-25 00:32:28] INFO  WEBrick 1.3.1
> [2004-10-25 00:32:28] INFO  ruby 1.8.1 (2004-04-24) [i386-linux-gnu]
> [2004-10-25 00:32:28] DEBUG TCPServer.new(::, 10080)
> [2004-10-25 00:32:28] DEBUG TCPServer.new(0.0.0.0, 10080)
> [2004-10-25 00:32:28] WARN  TCPServer Error: Address already in use - bind(2)
> [2004-10-25 00:32:28] DEBUG WEBrick::HTTPServlet::FileHandler is mounted on /.
> [2004-10-25 00:32:28] DEBUG HelloServlet is mounted on /hello.
> [2004-10-25 00:32:28] DEBUG DemoServlet is mounted on /urlencoded.
> [2004-10-25 00:32:28] DEBUG DemoServlet is mounted on /multipart.
> [2004-10-25 00:32:28] INFO  WEBrick::HTTPServer#start: pid=23718 port=10080
> 
> I can now access it via Mozilla with this url:
> http://localhost:10080/
> 
> I were very close rejecting webrick.
> Please add README files to all subdirs, so we can avoid this.
> 
> --
> Simon Strandgaard
> 
>