Using the following steps you can develop soap Web Services using jax-ws, spring and maven plugin

Define service interface
Define service Implementation
Web.xml – add JAX-WS commons spring ext servlet
Spring beans configuration using annotations
Spring configurations for Web Services
pom.xml – Add ‘jaxws-maven-plugin’ plugin
Build deployment using maven
Check the web service
Test web service using sopaUI

more details at: http://goo.gl/TjlsY or http://wp.me/pM8Do-1t

Source code at : http://goo.gl/y7Dvo