Error initializing application with Spring Boot

Question

Error initializing application with Spring Boot

Navigation

#1 by (0 votes)

0

I'm creating an application using Spring Boot with JPA. When I upload the application, the following message is displayed:

Description: Can not determine embedded database driver class for database type NONE Action: If you want an embedded database please put a supported one on the classpath. > If you have database settings to be loaded from a particular profile you may> need to active it.

Ok, I looked it up in Google and found a topic from StackOverFlow itself (answer link here) , speaking to set application.properties which DataSource will be used. However, I do not want to do this directly, since I want to set DataSource directly in the application.

My class:

@Configuration
@EnableJpaRepositories("br.com.sys.dao")
@EnableTransactionManagement
public class JpaConfig {

    @Bean
    public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
        DataSource ds = dataSource();

        ConnectionManager.getInstance().setDataSource(ds);

        Properties properties = new Properties();
        properties.setProperty("hibernate.hbm2ddl.auto", "validate");
        properties.setProperty("hibernate.dialect", "org.hibernate.dialect.PostgreSQLDialect");
        properties.setProperty("hibernate.show_sql", "false");
        properties.setProperty("hibernate.format_sql", "false");
        properties.setProperty("hibernate.use_sql_comments", "false");
        properties.setProperty("hibernate.physical_naming_strategy", "br.com.sys.configuration.LowercaseNamingStrategy");

        LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
        em.setDataSource(ds);
        em.setPackagesToScan("br.com.sys.model");
        em.setJpaVendorAdapter(new HibernateJpaVendorAdapter());
        em.setJpaProperties(properties);

        return em;
    }

    @Bean
    public DataSource dataSource() {
        DriverManagerDataSource dataSource = new DriverManagerDataSource();
        dataSource.setDriverClassName("org.postgresql.Driver");
        dataSource.setUrl("jdbc:postgresql://localhost:5432/bd");
        dataSource.setUsername("postgres");
        dataSource.setPassword("postgres");
        return dataSource;
    }

    @Bean
    public PlatformTransactionManager transactionManager() {
        JpaTransactionManager transactionManager = new JpaTransactionManager();
        transactionManager.setEntityManagerFactory(entityManagerFactory().getObject());
        return transactionManager;
    }

    @Bean
    public PersistenceExceptionTranslationPostProcessor exceptionTranslation() {
        return new PersistenceExceptionTranslationPostProcessor();
    }

}

Should not the @Configuration annotation be "calling" SpringBoot for this class to be able to configure DataSource ? Is the way I'm doing correct, or should I use application.properties?

Someone ????

java spring java-ee spring-boot

asked by anonymous 08.09.2017 / 02:33

1 answer

Make file and compile in terminal PHP and mysqli. How to apply a filter without directly accessing the super global $ _POST

score 0 · Answer 1

Hello, I think it's almost all correct, however whenever I want to apply hibernate settings I directly call the setHibernateProperties method in the creation of the factory. Here is my example:

@Bean
public LocalSessionFactoryBean sessionFactory() {
    LocalSessionFactoryBean sessionFactory = new LocalSessionFactoryBean();
    sessionFactory.setDataSource(dataSource());
    sessionFactory.setPackagesToScan(new String[] { "com.websystique.spring.model" });
    sessionFactory.setHibernateProperties(hibernateProperties());
    return sessionFactory;
 }

@Bean
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;        
}