Vaadin @SpringUI is not mapped

I am new baby to spring vaadin, I created a spring boot with vaadin in Spring Tool Suite.

Created a @RestController and it is working,
I have some old servlet that I like to added it to the project so I created a Spring bean configuration xml file for my old servlet,it is working fine too.

But after I added a simple class like following
@SpringUI
public class MyVaadinUI extends UI {
    @Override
    protected void init(VaadinRequest request) {
        setContent(new Label("Hello! I'm the vaadinUI!"));
    }
}

I started the application in STS, all my servlet and controller are mapping correctly, but I got the following:
Forwarding @SpringUI URLs from {}
Neither 'urlMap' nor 'mappings' set on SimpleUrlHandlerMapping
Registering Vaadin servlet of type [com.vaadin.spring.server.SpringVaadinServlet]
Looking up SpringViews
No SpringViews found

I tried the http://localhost:8080/, I got the following error

Whitelabel Error Page

This application has no explicit mapping for /error, so you are seeing this as a fallback.Wed Jul 06 10:31:29 MST 2016
There was an unexpected error (type=Not Found, status=404).
No message available

I changed @SpringUI to @SpringUI(path="/myui"), then http://localhost:8080/myui, the same problem.

Would someone help me please?

Thank you!

Hi,

I tried to reproduce your problem but couldn't. All I can think of right now is that with Spring Boot you add Servlets in the following way:

@Configuration
public class ServletConfig {

    @Bean
    public ServletRegistrationBean servlet() {
        return new ServletRegistrationBean(new HttpServlet() {
            @Override
            protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
                resp.getWriter().append("Servlet works!");
            }
        }, "/servlet/*");
    }

}

I created an example application that adds a Servlet and a REST controller in a Vaadin application with Spring Boot. Check it out.

did you found solution for this problem, because i have the same i really don't find the solution

i had the same problem, i had to import "import com.vaadin.spring.annotation.SpringUI;"

Try to verify your @ComponentScan annotation if the annotation parameter contemplating the package path of your components

Ex: @ComponentScan({"com.company"})