Vaadin + Spring (Not Boot)

So I'm having issues with my project right now. I have this Vaadin with Spring project running in tomcat. Whenever I run it this exception occurs :

SEVERE: Servlet.service() for servlet [poc.spring.vaadin.dashboard.config.SpringVaadinServlet] in context with path [/dashboard] threw exception [com.vaadin.server.ServiceException: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'poc.spring.vaadin.dashboard.DashboardUI': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.vaadin.spring.navigator.SpringViewProvider poc.spring.vaadin.dashboard.DashboardUI.springViewProvider; nested exception is java.lang.IllegalArgumentException: Found no valid com.vaadin.spring.internal.UIID instance!] with root cause
java.lang.IllegalArgumentException: Found no valid com.vaadin.spring.internal.UIID instance!

Stackoverflow Link to the  same question http://stackoverflow.com/questions/42362018/vaadin-without-spring-boot-issue

Code as follows this is my AppConfig.java

@Configuration
@EnableVaadin 
@EnableTransactionManagement
@ComponentScan(basePackages = "poc.spring.vaadin.dashboard.*")
@PropertySource(value = { "classpath:application.properties" })
public class AppConfig {

    @Autowired
    private Environment environment;

    private static ApplicationContext ctx;

    public static void setApplicationContext(ApplicationContext applicationContext) {
        ctx = applicationContext;
    }

    public static ApplicationContext getApplicationContext() {
        return ctx;
    }

    @Bean
    public ApplicationContextProvider applicationContextProvider() {
        ApplicationContextProvider applicationContextProvider = new ApplicationContextProvider();
        return applicationContextProvider;
    }

    @Bean
    public LocalSessionFactoryBean sessionFactory() {
        LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean();
        sessionFactory.setDataSource(dataSource());
        sessionFactory.setPackagesToScan(new String { "poc.spring.vaadin.dashboard.entity" });
        sessionFactory.setHibernateProperties(hibernateProperties());
        return sessionFactory;
    }

    @Bean(name = "postgresDataSource")
    @Order
    public DataSource dataSource() {
        DriverManagerDataSource dataSource = new DriverManagerDataSource();
        dataSource.setDriverClassName(environment.getRequiredProperty("jdbc.driverClassName"));
        dataSource.setUrl(environment.getRequiredProperty("jdbc.url"));
        dataSource.setUsername(environment.getRequiredProperty("jdbc.username"));
        dataSource.setPassword(environment.getRequiredProperty("jdbc.password"));
        return dataSource;
    }

    private Properties hibernateProperties() {
        Properties properties = new Properties();
        properties.put("hibernate.dialect", environment.getRequiredProperty("hibernate.dialect"));
        properties.put("hibernate.show_sql", environment.getRequiredProperty("hibernate.show_sql"));
        properties.put("hibernate.format_sql", environment.getRequiredProperty("hibernate.format_sql"));
        return properties;
    }

    @Bean
    @Autowired
    public HibernateTransactionManager transactionManager(SessionFactory s) {
        HibernateTransactionManager txManager = new HibernateTransactionManager();
        txManager.setSessionFactory(s);
        return txManager;
    }
    

My UI and View Class:

SuppressWarnings("serial")
@Theme("dashboardTheme")
@SpringUI()
public class DashboardUI extends UI {

    @Autowired
    private SpringViewProvider springViewProvider;

    @Autowired
    private PostValuesService postValuesService;

    SampleSideBar sampleSideBar = new SampleSideBar();
    LoginComponent loginComponent = new LoginComponent();

    private TransMonitoring getTransGrid() throws ParseException {

        Collection<PostValue> transList = postValuesService.getAllPostValues(null, null, null, null, null, null, null,
                null, null, null, 100);
        System.out.println(transList.size());
        BeanItemContainer<PostValue> container = new BeanItemContainer<PostValue>(PostValue.class, transList);
        return new TransMonitoring(container);
    }

    @Override
    protected void init(VaadinRequest request) {
        final VerticalLayout root = new VerticalLayout();
        // root.setSizeFull();
        root.setMargin(true);
        root.setSpacing(true);

        root.addComponent(loginComponent);
        root.setComponentAlignment(loginComponent, Alignment.MIDDLE_CENTER);
        setContent(root);

         Navigator navigator = new Navigator(this, root);
         navigator.addProvider(springViewProvider);
    }

}

@SuppressWarnings("serial")
@UIScope
@SpringView(name = "")
public class LoginView extends VerticalLayout implements View {

    
    public static final String VIEW_NAME = "";

    @Autowired
    private LoginService loginService;

    @PostConstruct
    void init() {
        Button navBtn = new Button("Test");
        navBtn.addClickListener(e -> getUI().getNavigator().navigateTo("dashboard"));

        setSizeFull();
        TextField textField = new TextField("UserName");
        PasswordField passwordField = new PasswordField("Password");
        Button loginBtn = new Button("Login");
        Button cancelBtn = new Button("Cancel");
        VerticalLayout layout = new VerticalLayout();
        HorizontalLayout horizontalLayout = new HorizontalLayout();
        // layout.setSizeFull();
        horizontalLayout.addComponent(navBtn);
        horizontalLayout.addComponent(loginBtn);
        horizontalLayout.addComponent(cancelBtn);
        layout.addComponent(textField);
        layout.addComponent(passwordField);
        layout.addComponent(horizontalLayout);
        User user = loginService.getDetailsByUserName("h.sipalay");
        loginBtn.addClickListener(e -> new Notification(user.toString()).show(Page.getCurrent()));
        addComponent(layout);
    }

    @Override
    public void enter(ViewChangeEvent event) {
        // the view is constructed in the init() method()
    }

}

It seems that it can't wire the SpringvVewpPovider. But then I also inluded the EnableVaadin annotation. Any ideas how can I solve this?

Thanks!

Hi Jethro,

DashboardUI should have @UIScope.
Ur LoginView should have ONLY @SpringView (not UIScope)!