http://localhost:9090/app/login2.xhtml

@Controller
@RequestMapping("/auth")
public class LoginController {


 @RequestMapping(value = "/login", method = RequestMethod.GET)
 public String getLoginPage(@RequestParam(value="error", required=false) boolean error,
   ModelMap model) {
return "login2.xhtnml";
}

}

<servlet>
<servlet-name>spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>
                classpath:META-INF/spring-servlet.xml
        </param-value>
    </init-param>
<load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
<servlet-name>spring</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>

http://localhost:9090/app/login2.xhtml

WARN org.springframework.web.servlet.PageNotFound - No mapping found for HTTP request with URI [/app/login2.xhtml] in DispatcherServlet with name 'spring'

<servlet-mapping>
<servlet-name>spring</servlet-name>
<url-pattern>/app/*</url-pattern>
</servlet-mapping>

http://localhost:9090/app/auth/login

http://localhost:9090/app/app/auth/login

<servlet-mapping>
    <servlet-name>spring</servlet-name>
    <url-pattern>/app/*</url-pattern>
    </servlet-mapping>