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
[code]
@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;
}
[/code]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!