Hi!
Which web service stack do you want to use?
Apache CXF can do RESTful web services and works well with Spring. In fact, Spring is used internally in Apache CXF:
http://cxf.apache.org/
RESTlet is a small and flexible framework for developing RESTful web services. Works very well with Spring:
http://www.restlet.org/
Jersey, the JAX-RS reference implementation, also has Spring integration:
https://jersey.dev.java.net/
JBoss RESTEasy also has Spring integration:
http://www.jboss.org/resteasy
For the sake of simplicity, I would advice you to take a look at RESTlet. There are tutorials and documentation on their webpage.
With RESTlet you can develop stand-alone RESTful web services that does not need any container to run. The others may also be able to do this, but I have only done it with RESTlet.
Best wishes!