[스프링 부트와 JPA 활용1 - 웹 애플리케이션 개발] 1. 프로젝트 환경설정

springboot initializr

 

build.gradle

dependencies {
   implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
   implementation 'org.springframework.boot:spring-boot-starter-thymeleaf'
   implementation 'org.springframework.boot:spring-boot-starter-web'
   implementation 'org.springframework.boot:spring-boot-devtools' // 컴파일 했을 때 즉시 적용
   implementation 'com.github.gavlyukovskiy:p6spy-spring-boot-starter:1.5.6' // 쿼리 파라미터 로그 남기기
   compileOnly 'org.projectlombok:lombok'
   runtimeOnly 'com.h2database:h2'
   annotationProcessor 'org.projectlombok:lombok'
   testImplementation 'org.springframework.boot:spring-boot-starter-test'
   //JUnit4 추가
   testImplementation("org.junit.vintage:junit-vintage-engine") {
      exclude group: "org.hamcrest", module: "hamcrest-core"
   }
}

tasks.named('test') {
   useJUnitPlatform()
}

test {
   useJUnitPlatform()
}

 

application.yml

spring:
  datasource:
    url: jdbc:h2:tcp://localhost/~/jpashop
    username: 
    password: 
    driver-class-name: org.h2.Driver

  jpa:
    hibernate:
      ddl-auto: create
    properties:
      hibernate:
        #        show_sql: true
        format_sql: true

logging.level:
  org.hibernate.SQL: debug
#  org.hibernate.type: trace

 

Member

@Entity
@Getter @Setter
public class Member {

    @Id @GeneratedValue
    private Long id;
    private String username;
    
}

 

MemberRepository

@Repository
public class MemberRepository {

    @PersistenceContext // 어노테이션으로 엔티티 매니저 주입
    EntityManager em;
    
    public Long save(Member member) {
        em.persist(member);
        return member.getId();
    }

    public Member find(Long id) {
        return em.find(Member.class, id);
    }
}

 

MemberRepositoryTest

@RunWith(SpringRunner.class) // spring 관련 테스트
@SpringBootTest
public class MemberRepositoryTest {

    @Autowired MemberRepository memberRepository;

    @Test
    @Transactional // 엔티티 매니저를 통한 데이터 변경은 Transaction 내에서 일어남
    @Rollback(false) // test에 있으면 rollback 하므로
    public void testMember() throws Exception {
        //given
        Member member = new Member();
        member.setUsername("memberA");

        //when
        Long saveId = memberRepository.save(member);
        Member findMember = memberRepository.find(saveId);

        //then
        Assertions.assertThat(findMember.getId()).isEqualTo(member.getId());
        Assertions.assertThat(findMember.getUsername()).isEqualTo(member.getUsername());
        Assertions.assertThat(findMember).isEqualTo(member);
    }
}

Extract해서 변수 뽑아오기 : Ctrl + Alt + V

 

 

 

 

 

 

참고 강의 :

실전! 스프링 부트와 JPA 활용1 - 웹 애플리케이션 개발 - 인프런 | 강의