rails routing

config/route.rb

set the page of webSite root:

map.root  :controller => "test"

note: remember to remove  /public/index.html

default route

map.connect  ':controller/:action/:id'

map.connect  ':controller/:action/:id.:format'

ex: 

http://localhost:3000/test/apple/3.xml

test map to :controller,  apple map to :action, 3 map to :id, xml map to :format

the parameter get from default route:

params[:controller],  params[:action],  params[:id]

set controller & action:

map.connect  'test/:var',  :controller=>rabbit,  :action=>jump

ex: 

http://localhost:3000/test/apple

apple map to :var

:requirements

set the requirement the component must match

ex:

map.connect  ":day",  :requirements => { :day => /[0-3]?\d }

the pattern for remaining components in the URL ( not specify in the URL)

use * with a name

ex:

map.connect  "*anything",  :action=> "unknown_action"

named route:

replace map.connect with map.routeName,

replace  url_for with routeName_url

ex:

 map.run  :controller=>"test", :action=>"run"

 redirect_to (run_url)

 link_to(" run" , run_url )