GUI reporting application

I want a small web application developed using servlets and jsp with mysql backend running on tomcat server. Basically the system shud query a small datawarehouse containing sales, customers, products and time tables. The results of the query shud be publised as a bar graph or a pie chart. An example query will be as follows: sales to customer in the period of last year. Annual sales figures for a particular product. The User Interface will have a way for selecting query details. Say comboboxes for customers, prodcts, timeperiod. etc. this is not a commercial application. it is for a student class project. So bid accordingly. I will need the source code.