This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
I'll give you the same response. Your URL is not mapped correctly. That includes Servlet mapping and url mapping in Controller and configuration. You don't post any of that so the most I can tell you is that your Mapping is wrong somewhere.