This article shows how to set up Spring with JPA, using Hibernate as a persistence provider.
The JPA Spring Configuration with Java
@Configuration
@EnableTransactionManagement
public class PersistenceJPAConfig{
@Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactoryBean() {
LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
em.setDataSource(dataSource());
em.setPackagesToScan(new String[] { "org.baeldung.persistence.model" });
JpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
em.setJpaVendorAdapter(vendorAdapter);
em.setJpaProperties(additionalProperties());
return em;
}
@Bean
public DataSource dataSource(){
DriverManagerDataSource dataSource = new DriverManagerDataSource();
dataSource.setDriverClassName("com.mysql.jdbc.Driver");
dataSource.setUrl("jdbc:mysql://localhost:3306/spring_jpa");
dataSource.setUsername( "tutorialuser" );
dataSource.setPassword( "tutorialmy5ql" );
return dataSource;
}
@Bean
public PlatformTransactionManager transactionManager(EntityManagerFactory emf){
JpaTransactionManager transactionManager = new JpaTransactionManager();
transactionManager.setEntityManagerFactory(emf);
return transactionManager;
}
@Bean
public PersistenceExceptionTranslationPostProcessor exceptionTranslation(){
return new PersistenceExceptionTranslationPostProcessor();
}
Properties additionalProperties() {
return new Properties() {
{ // Hibernate Specific:
setProperty("hibernate.hbm2ddl.auto", "create-drop");
setProperty("hibernate.dialect", "org.hibernate.dialect.MySQL5Dialect");
}
};
}
}
The JPA Spring Configuration with XML
create-drop
org.hibernate.dialect.MySQL5Dialect
This Spring JPA Tutorial can be found in
the github project – this is an Eclipse based project, so it should be easy to import and run as it is.
Source and full article in
Baeldung.com
