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.
Both Struts 1 and Struts 2 are for creating web applications that interact with humans. A Web Service by definition interacts with a program and therefore cannot be created using Struts. You will need to use some other technology such as JAX-WS to create a web service.