I am developing a web application. The web application is very simple. But it requires very high performance about database queries. The database queries are very simple too.
Right now, I am using struts at front end, JDBC at back end.
I am thinking changing back end to EJB, hibernate or Spring or some other technologies. Can someone point me which framework is easy to use and not overkill ?
Basically, I want to improve connection pooling.