how to show param/value on URL and captuer them through backing bean

[Yasushi Okubo]

Hi, experts

I am using session bean, but some portions of applications have to show 
param/value in URL field on browser and capture those pairs of 
param/values through backing bean.
Could someone advise me how to show param/value in URL ?
If I move to a bean with request scope with statesaving on, then could 
pairs of param/values automatically be shown on URL ?
Since I am using tiles, URL looks always the name of the tile defined in 
tiles.xml

Thanks,
yasushi