[TIL]航海9920日

ORM(Object-Relational Mapping)

JPA

@Entity // DB 테이블 역할
public class User {
    // ID가 자동으로 생성 
    @GeneratedValue(strategy = GenerationType.AUTO)
    @Id
    private Long id;

    // nullable: null 허용 여부
    // unique: 중복 허용 여부 (false 일때 중복 허용)
    @Column(nullable = false, unique = true)
    private String username;

    @Column(nullable = false)
    private String password;

    @Column(nullable = false, unique = true)
    private String email;

    @Column(nullable = false)
    @Enumerated(value = EnumType.STRING)
    private UserRoleEnum role;

    @Column(unique = true)
    private Long kakaoId;
}

MVC (Model - View - Controller)

Controller