This week's giveaway is in the EJB and other Java EE Technologies forum. We're giving away four copies of EJB 3 in Action and have Debu Panda, Reza Rahman, Ryan Cuprak, and Michael Remijan on-line! See this thread for details.
Please specify whether you had added to WEB-INF/lib folder
is it there in the java build path ....(did you added it to there) just check this also eclipse tutorial
export the project as a war file and extract the contents of the war file if your exported library is there in WEB-INF/lib folder then it should work ........... try upload that war file into your server and see whether it is working properly....