개발하고 있는 프로젝트에 Querydsl을 적용해보려고 테스트 중입니다.

@Test
void contextLoads() {
    JPAQueryFactory query = new JPAQueryFactory(em);
    QHello qHello = QHello.hello; //Querydsl Q타입 동작 확인

    List<Hello> result = query
            .selectFrom(qHello).fetch();

    System.out.println("result = " + result);
}

import java.math.BigDecimal;
import javax.persistence.Entity;
import javax.persistence.Table;
import javax.persistence.Id;
import javax.persistence.Column;
import javax.persistence.PostLoad;
import javax.persistence.PrePersist;
import javax.persistence.PostPersist;
import javax.persistence.PreUpdate;
import javax.persistence.PostUpdate;
import javax.persistence.PreRemove;
import javax.persistence.PostRemove;
// import org.springframework.beans.BeanUtils;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.EqualsAndHashCode;
import lombok.ToString;
import lombok.Builder;

@Entity
@Table(name="EDU_ACNT") //--PRIMARY
@Getter
@NoArgsConstructor // (access = AccessLevel.PROTECTED) // AccessLevel.PUBLIC
@EqualsAndHashCode // (of = {"email","name"}, callSuper = true, onParam = @__(@NonNull))
@ToString //(exclude = "password") // exclude 속성을 사용하면, 특정 필드를 toString() 결과에서 제외
public class EduAcnt {
    @Id //  Integer
    @Column(name = "ACNT_NO", nullable = false)
    private Integer acntNo; //--null

    @Column(name = "BALANCE", precision = 18, scale = 0, nullable = false)
    private BigDecimal balance; //--null

    @Builder
    public EduAcnt(Integer acntNo, BigDecimal balance) {
        this.acntNo = acntNo;
        this.balance = balance;
    }

    //----------------------------------------------------
    // Load/Persist/Update/Remove(조회/신규/수정/삭제)
    // Entity Pre/Post(이전/이후) 처리에 대한 정의(PreLoad는 없음)
    // * DB의 Trigger와 비슷한 JPA기능
    //----------------------------------------------------
    @PostLoad
    public void onPostLoad() {
    }

    @PrePersist
    public void onPrePersist() {

    }

    @PostPersist
    public void onPostPersist() {
    }

    @PreUpdate
    public void onPreUpdate() {
    }

    @PostUpdate
    public void onPostUpdate() {
    }

    @PreRemove
    public void onPreRemove() {
    }

    @PostRemove
    public void onPostRemove() {
    }

}