[Project] 로그인 페이지

• 세션 로그인

1.Controller

 @PostMapping("/login")
    public String login(@Valid UserRequest.LoginDTO loginDTO, Errors errors) {
        User sessionUser = userSerivce.로그인(loginDTO);
        session.setAttribute("sessionUser", sessionUser);
        //TODO 주헌
        //session.setAttribute();
        return "redirect:/";
    }

2.User

package shop.mtcoding.filmtalk.user;

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

import java.sql.Timestamp;

@Getter
@Setter
@Table(name = "user_tb")
@NoArgsConstructor
@Entity
public class User {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    @Column(nullable = false, unique = true)
    private String username;//아이디

    @Column(nullable = false)
    private String password;

    @Column(nullable = false)
    private String email;

    @Column
    private String phone;

    @CreationTimestamp
    private Timestamp createdAt;


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

service

   public User 로그인(UserRequest.LoginDTO loginDTO) {
        User user = userQueryRepository.findByUsernameAndPassword(loginDTO.getUsername(), loginDTO.getPassword());

        return user;

    }

repository

 public User findByUsernameAndPassword(String username, String password) {
        Query query = em.createQuery("select u from User u where u.username=:username and u.password =:password", User.class);
        query.setParameter("username", username);
        query.setParameter("password", password);
        try {
            User user = (User) query.getSingleResult();
            return user;
        } catch (Exception e) {
            throw new Exception401("인증되지 않았습니다.");
        }


    }