jpa configuration through Java

gistfile1.txt

@Configuration
@EnableJpaRepositories(value = "ru.mrchebik.repository", entityManagerFactoryRef = "entityManagerFactoryBean", transactionManagerRef = "transactionManager")
@EnableTransactionManagement
public class PersistenceJPAConfig {
    @Bean
    public LocalContainerEntityManagerFactoryBean entityManagerFactoryBean() {
        Properties properties = new Properties();
        properties.put("hibernate.hbm2ddl.auto", "update");
        properties.put("hibernate.dialect", "org.hibernate.dialect.MySQLDialect");
        properties.put("hibernate.connection.charSet", "UTF-8");
        properties.put("hibernate.show_sql", "true");

        LocalContainerEntityManagerFactoryBean lcemfb = new LocalContainerEntityManagerFactoryBean();
        lcemfb.setDataSource(dataSource());
        lcemfb.setJpaVendorAdapter(new HibernateJpaVendorAdapter());
        lcemfb.setJpaProperties(properties);
        lcemfb.setPackagesToScan("ru.mrchebik");

        return lcemfb;
    }

    @Bean
    public PlatformTransactionManager transactionManager(){
        return new JpaTransactionManager(entityManagerFactoryBean().getObject());
    }

    @Bean
    public DataSource dataSource() {
        DriverManagerDataSource dataSource = new DriverManagerDataSource("jdbc:mysql://localhost:3306/STOMPExample", "root", "root");
        dataSource.setDriverClassName("com.mysql.jdbc.Driver");

        return dataSource;
    }
}