엔터티에서 매핑 메타데이터 정의

@Entity
@Table(name="T_ACCOUNT")
public class Account {

    @Id
    @Column(name="ID")
    private Long entityId;

    @Transient
    private String number;
    ...
}

EntityManagerFactory 빈 정의

    @Bean
    public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
        HibernateJpaVendorAdapter adapter = new HibernateJpaVendorAdapter();
        adapter.setShowSql(true);
        adapter.setGenerateDdl(true); // creating/updating tables (be careful)
        adapter.setDatabase(Database.HSQL);
        Properties props = new Properties();
        props.setProperty("hibernate.format_sql", "true");
        LocalContainerEntityManagerFactoryBean emfb = 
            new LocalContainerEntityManagerFactoryBean();
        emfb.setDataSource(dataSource());
        emfb.setPackagesToScan("com");
        emfb.setJpaProperties(props);
        emfb.setJpaVendorAdapter(adapter);
        return emfb;
    }

트랜잭션 관리자 및 DataSource 빈 정의

    @Bean
    public PlatformTransactionManager transactionManager(EntityManagerFactory emf) {
        return new JpaTransactionManager(emf);
    }

    @Bean
    public DataSource dataSource(){
        return
            (new EmbeddedDatabaseBuilder())
            .addScript("classpath:schema.sql")
            .addScript("classpath:data.sql")
            .build();
    }

저장소/DAO 정의

@Repository("accountRepository")
public class JpaAccountRepository implements AccountRepository {

    @PersistenceContext
    private EntityManager entityManager;

    @Override
    public Account findByNumber(String number) {
        String jpql = "SELECT a FROM Account a where a.number = :number";
        Account account = entityManager.createQuery(jpql, Account.class)
                .setParameter("number", number).getSingleResult();
        return account;
    }
}