SpringBoot application crash

Question

Tell me please where I have problem? I try to start my first application developed on Spring Boot. I already have simple web project on SpringMVC and now I like to build it

Answer 1

The root of the problem lies in the DataSourceInitializedPublisher which publishes an event when certain beans have been registered. This bean is added by the HibernateJpaAutoConfiguration class. This class tries to create a LocalContainerEntityManagerFactory however in your configuration you are creating it yourself. Leading to early firing of events.

Excluding the HibernateJpaAutoConfiguration should fix the problem as that disable the registration of the DataSourceInitializedPublisher.

@EnableAutoConfiguration(exclude=org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration.class)

Regarding your configuration you can almost remove all of it and simply put some properties in the application.properties files.

Your WebAppConfig.

@Configuration
public class WebAppConfig  extends WebMvcConfigurerAdapter {

    @Bean(name = "messageSource")
    public MessageSource configureMessageSource() {
        AbstractMessageSource messageSource = new Dictionary();
        return messageSource;
    }

    @Bean
    public LocaleResolver localeResolver() {
        SessionLocaleResolver lr = new SessionLocaleResolver();
        lr.setDefaultLocale(Locale.ENGLISH);
        return lr;
    }

    @Bean
    public LocaleChangeInterceptor localeChangeInterceptor(){
        LocaleChangeInterceptor localeChangeInterceptor=new LocaleChangeInterceptor();
        localeChangeInterceptor.setParamName("lang");
        return localeChangeInterceptor;
    }

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(localeChangeInterceptor());
    }

}

And in the application.properties add the following 2 properties

spring.view.prefix=/WEB-INF/jsp/
spring.view.suffix=.jsp

Now your RootConfig.

@Configuration
public class RootConfig {

    @Bean
    public HibernateJpaSessionFactoryBean sessionFactory(EntityManagerFactory emf) {
        HibernateJpaSessionFactoryBean sessionFactoryBean = new HibernateJpaSessionFactoryBean();
        sessionFactoryBean.setEntityManagerFactory(emf);
        return sessionFactoryBean;
    }
}

And add the following properties to your application.properties

spring.datasource.url=
spring.datasource.username=
spring.datasource.password=

spring.jpa.database-platform= // Hibernate Dialect
spring.jpa.show-sql=
spring.jpa.hibernate.ddl-auto=
spring.jpa.properties.hibernate.format_sql=true

For more properties see the reference guide.

Your Initializer can be removed as that doesn't do anything in a Spring Boot application. I might have missed a couple of properties but this should give you a start and feel for what Spring Boot can do for you.

Note: I'm not sure why you need both JPA and plain hibernate if you can do it with JPA only you can simply remove your RootConfig completely.