[Querydsl] 기본 검색

기본 검색 쿼리

@Test
public void search() {
    Member findMember = queryFactory
            .selectFrom(member)
            //where(member.username.eq("member1"),member.age.eq(10)).fetch()로 처리 가능
            .where(member.username.eq("member1")
                    .and(member.age.eq(10)))
            .fetchOne();
    assertThat(findMember.getUsername()).isEqualTo("member1");
}

select,from을 selectFrom으로 합칠 수 있다

검색 조건에서 .and() , .or()를 메서드 체인으로 연결할 수 있다

.and()는 파라미터로 처리할 수 있다 

Querydsl은 JPQL이 제공하는 모든 검색 조건을 제공한다 

member.username.eq("member1") // username = 'member1'
member.username.ne("member1") //username != 'member1'
member.username.eq("member1").not() // username != 'member1'
member.username.isNotNull() //이름이 is not null
member.age.in(10, 20) // age in (10,20)
member.age.notIn(10, 20) // age not in (10, 20)
member.age.between(10,30) //between 10, 30
member.age.goe(30) // age >= 30
member.age.gt(30) // age > 30
member.age.loe(30) // age <= 30
member.age.lt(30) // age < 30
member.username.like("member%") //like 검색 
member.username.contains("member") // like ‘%member%’ 검색 
member.username.startsWith("member") //like ‘member%’ 검색 
...