JAX-WS Web service on Tomcat without sun-jaxws.xml

Question

I am trying to minimize required configuration while deploying JAX-WS-based Web service on Tomcat. With the introduction of Servlet 3.0 (supported by Tomcat 7+), web.xml

Answer 1

To have JAX-WS support in Tomcat you must configure:

• WEB-INF/sun-jaxws.xml
• WSServletContextListener
• WSServlet

Unfortunately it is hard to omit the WEB-INF/sun-jaxws.xml file but there is easier way to omit web.xml configuration because of Servlet 3.0 API.

You can do something like this:

@WebServlet(name = "ServiceServlet" , urlPatterns = "/service", loadOnStartup = 1)
public class Servlet extends WSServlet {

}

and

@WebListener
public class Listener implements ServletContextAttributeListener, ServletContextListener {

    private final WSServletContextListener listener;

    public Listener() {
        this.listener = new WSServletContextListener();
    }

    @Override
    public void attributeAdded(ServletContextAttributeEvent event) {
        listener.attributeAdded(event);
    }

    @Override
    public void attributeRemoved(ServletContextAttributeEvent event) {
        listener.attributeRemoved(event);
    }

    @Override
    public void attributeReplaced(ServletContextAttributeEvent event) {
        listener.attributeReplaced(event);
    }

    @Override
    public void contextInitialized(ServletContextEvent sce) {
        listener.contextInitialized(sce);
    }

    @Override
    public void contextDestroyed(ServletContextEvent sce) {
        listener.contextDestroyed(sce);
    }
}

I have tested it on Tomcat-8.5.23 version and it works. But remember that you still must have WEB-INF/sun-jaxws.xml file.