(...)
<servlet>
    <servlet-name>TestingServlet</servlet-name>
    <servlet-class>TestingServlet</servlet-class>
</servlet>
<servlet-mapping>
    <servlet-name>TestingServlet</servlet-name>
    <url-pattern>/servlet/TestingServlet</url-pattern>
</servlet-mapping>
(...)

@WebServlet(urlPatterns={"/path1","/path2"[,...],}

@Controller
public class HelloWorldController {

    @RequestMapping("/helloWorld")
    public ModelAndView helloWorld() {
        ModelAndView mav = new ModelAndView();
        mav.setViewName("helloWorld");
        mav.addObject("message", "Hello World!");
        return mav;
    }
}