Spring Boot，Vaadin - 无法在视图中自动装配服务

Question

I have spring boot application with vaadin and vaadin4spring addon. In one my View i want to display a data which are in database. Data i want to display are returned by a method in service class.

@Service
public class UserService {
    public List<Users> getUsers() ....
}

View:

@SpringView(name = Views.USERLIST) //static constant containing string "users"
public class UserlistView extends HorizontalLayout implements View {
    @Autowired
    private UserService userService;
    @PostConstruct
    public void construct() {
        displaytable(userService.getUsers());
    }
    @Override
    public void enter(ViewChangeListener.ViewChangeEvent viewChangeEvent) {}

}

UI class:

@SpringUI
@Theme("valo")
public class TUI extends UI {
        @Autowired
        private SpringViewProvider springViewProvider;

        protected void init(VaadinRequest request) {
          ..
          Navigator navigator = new Navigator(this, content);
           navigator.addView(Views.USERLIST, UserlistView.class);
          navigator.addProvider(springViewProvider);

        }
}

During the server startup vaadin recognizes the springview - " cvspring.navigator.SpringViewProvider : 1 SpringView found", no exceptions or warnings are displayed.

Every time i use navigator display the view ( navigator.navigateTo("users") ) autowired field in the view is not injected and the postprocess method not called. What is even stranger if i dont add the view into the navigator object and use url to access the view directly - localhost:8080/#!users the fields will be injected correctly and method construct() will be called.

If it helps there is my configuration class

@Configuration
@ComponentScan(basePackages = { "me.project" })
@EnableAutoConfiguration
@EnableVaadinEventBus
public class TheConfig {
    // contains only one bean definition - sessionfactory
}

Has anyone faced similar problem? I was not able to find help anywhere could anyone please tell me what i did wrong. Thank you

Answer 1

When you do

navigator.addView(Views.USERLIST, UserlistView.class);

It creates a StaticViewProvider which is not handled by Spring and creates a view using 'new'. So no spring autowiring happens for 'addView' If you use springViewProvider Autowiring is handled by Spring.

So do not do navigator.addView() , instead rely on springViewProvider when using Spring+Vaadin.