v3 - 회원가입

[ UserRepository 쿼리 작성 ]

@RequiredArgsConstructor
@Repository
public class UserRepository {
    private final EntityManager em;
    
    @Transactional
    public User save(User user) {
        em.persist(user);
        return user;
    }

원래는 이런 코드였는데…

💡

이 코드가

💡

이렇게 간소하게 바뀜!

 

[ DTO 만들기 ]

package shop.mtcoding.blog.user;

import lombok.Data;

public class UserRequest {

    @Data
    public static class JoinDTO {
        private String username;
        private String password;
        private String email;

        public User toEntity() {
            return User.builder()
                    .username(username)
                    .password(password)
                    .email(email)
                    .build();
        } 
    }  //@Builder 있어야 사용 가능

}

잠깐! User 엔티티에 @Builder가 있는지 확인했나요?

package shop.mtcoding.blog.user;

import jakarta.persistence.*;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.hibernate.annotations.CreationTimestamp;

import java.sql.Timestamp;

@NoArgsConstructor
@Data
@Table(name = "user_tb")
@Entity
public class User {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Integer id;
    @Column(unique = true)
    private String username;
    private String password;
    private String email;

    @CreationTimestamp // pc -> db (날짜주입)
    private Timestamp createdAt;

    @Builder
    public User(Integer id, String username, String password, String email, Timestamp createdAt) {
        this.id = id;
        this.username = username;
        this.password = password;
        this.email = email;
        this.createdAt = createdAt;
    }
}

[ UserController ]

@RequiredArgsConstructor
@Controller
public class UserController {
    private final UserRepository userRepository;
    private final HttpSession session;

    @PostMapping("/join")
    public String join(UserRequest.JoinDTO requestDTO) {
        userRepository.save(requestDTO.toEntity());
        return "redirect:/login-form";
    }

+ [ 회원가입 됐을 때, 바로 로그인 되게 바꿔주자! ] → UX 상승!

@RequiredArgsConstructor
@Controller
public class UserController {
    private final UserRepository userRepository;
    private final HttpSession session;

    @PostMapping("/join")
    public String join(UserRequest.JoinDTO requestDTO) {

        User sessionUser = userRepository.save(requestDTO.toEntity());
        session.setAttribute("sessionUser", sessionUser);
        
        return "redirect:/";
    }