데이터베이스 실행

• PostgreSQL도커 컨테이너 사용
  • Mysql 컨테이너 쓰자

스프링 부트

스프링 부트 스타터 JPA

• JPA 프로그래밍에 필요한 의존성 추가
  • JPA v2.*
  • Hibernate v5.*
• 자동 설정 : HibernateJpaAutoConfiguration
  • 컨테이너가 관리하는 EntityManager(프록시) 빈 설정
  • PlatformTransactionManager 빈 설정

JDBC 설정

spring.datasource.driverClassName=org.mariadb.jdbc.Driver
spring.datasource.url=jdbc:mariadb://localhost:3306/springjpa
spring.datasource.username=cmlee
spring.datasource.password=pass

spring.jpa.hibernate.ddl-auto=create

<dependency>
    <groupId>org.mariadb.jdbc</groupId>
    <artifactId>mariadb-java-client</artifactId>
</dependency>

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>

@Component
@Transactional
public class JpaRunner implements ApplicationRunner {

	@PersistenceContext
	EntityManager entityManager;

	@Override
	public void run(ApplicationArguments args) throws Exception {
		Account account = new Account();
		account.setUsername("cmlee2");
		account.setPassword("pass2");

		Session session = entityManager.unwrap(Session.class);
		session.save(account);

//		entityManager.persist(account);
	}
}