Vaadin @SpringUI is not mapped

Vaadin 6 / 7 / 8
1

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!

2

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:

[code]
@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/*");
}

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

3

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

4

Just to add to the conversation; I am evaluating vaadin with spring boot and I came across the same problem. My springUi class was in a totally different package structure than my main class. After I moved the UI class to the same package as my main class, it was correctly mapped.

5

If you don’t want to move your ui classes all in one package, try to see if @ComponentScan can help you.

6

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

7

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

Ex:
@ComponentScan({“com.company”})