[Spring] QueryDSL 사용하기

목차

1. build.gradle 설정

Spring Boot 3.0.4 기준

implementation 'com.querydsl:querydsl-jpa:5.0.0:jakarta'
annotationProcessor "com.querydsl:querydsl-apt:5.0.0:jakarta"
annotationProcessor "jakarta.annotation:jakarta.annotation-api"
annotationProcessor "jakarta.persistence:jakarta.persistence-api"


def querydslSrcDir = "$buildDir/generated/querydsl"

clean {
	delete file(querydslSrcDir)
}

tasks.withType(JavaCompile) {
	options.generatedSourceOutputDirectory = file(querydslSrcDir)
}

2. QuerydslConfig

@Configuration
public class QuerydslConfig {
    @PersistenceContext
    private EntityManager entityManager;

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

}

3. TestQuerydslConfig

테스트용 QuerydslConfig 파일을 따로 생성하였다

Test 폴더에 생성하고 테스트 파일이므로 @Configuration -> @TestConfiguration으로 변경

@TestConfiguration
public class TestQuerydslConfig {
    @PersistenceContext
    private EntityManager entityManager;

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

}

4. Repository Test

@DataJpaTest
@Import(TestQuerydslConfig.class)
@TestPropertySource(locations = "classpath:application-test.properties")
public class UserRepositoryTest {
	...
}

위의 코드와 같이 TestQuerydslConfig 클래스를 테스트 코드에서 Import 하면 사용할 수 있다