Querydsl - 설정하기

02 Apr 2021 in JPA on QueryDSL

• 1. build.gradle 설정
• 2. 테스트

1. build.gradle 설정

plugins {
    id 'org.springframework.boot' version '2.6.2'
    id 'io.spring.dependency-management' version '1.0.11.RELEASE'
    id 'java'
}


group = 'com.example'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '11'

configurations {
    compileOnly {
        extendsFrom annotationProcessor
    }
}

repositories {
    mavenCentral()
}

dependencies {
    implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
    implementation 'org.springframework.boot:spring-boot-starter-web'
    compileOnly 'org.projectlombok:lombok'
    annotationProcessor 'org.projectlombok:lombok'
    testImplementation 'org.springframework.boot:spring-boot-starter-test'

    // querydsl
    implementation 'com.querydsl:querydsl-jpa'
    annotationProcessor "com.querydsl:querydsl-apt:${dependencyManagement.importedProperties['querydsl.version']}:jpa"
    annotationProcessor "jakarta.persistence:jakarta.persistence-api"
    annotationProcessor "jakarta.annotation:jakarta.annotation-api"
}

@Configuration
public class QuerydslConfig {

    @PersistenceContext
    private EntityManager em;

    @Bean
    public JPAQueryFactory jpaQueryFactory() {
        return new JPAQueryFactory(em);
    }

}

2. 테스트

---

잘 동작하는지 테스트 코드를 작성

@SpringBootTest
@Transactional
class QuerydslApplicationTests {
	@Autowired
	EntityManager em;
	@Test
	void contextLoads() {
		Hello hello = new Hello();
		em.persist(hello);
		JPAQueryFactory query = new JPAQueryFactory(em);
		QHello qHello = QHello.hello; //Querydsl Q타입 동작 확인
		Hello result = query
				.selectFrom(qHello)
				.fetchOne();
		Assertions.assertThat(result).isEqualTo(hello);
//lombok 동작 확인 (hello.getId())
		Assertions.assertThat(result.getId()).isEqualTo(hello.getId());
	}
}

---

본 포스팅은 인프런 김영한님의 ‘실전! Querydsl’ 강의를 듣고 정리한 내용을 바탕으로 복습을 위해 작성하였습니다. [강의 링크]