How can we prepare online shoping pro...

There are many open source ecommerce sites
this is a good one with lots of features.
http://ofbiz.apache.org/

check this listing also
http://ananthchellathurai.blogspot.com/2009/09/best-java-based-open-source-ecommerce.html


please see all the best open source ecommerce sites in all languages
http://blog.taragana.com/index.php/archive/top-16-open-source-e-commerce-applications/


My opinion:
If you are doing a college project, select a good one from with documentations and do some additions. dont stick only to jsp.

Hope it will help
Thank you