Spring

49. 응답 DTO - board 나머지 만들기 v7

송민경's avatar
송민경
Mar 21, 2024
49. 응답 DTO - board 나머지 만들기 v7
Contents

1. 글 조회하기

  • 글 수정 화면시 뿌려지는 데이터
package shop.mtcoding.blog.board;

import lombok.AllArgsConstructor;
import lombok.Data;
import shop.mtcoding.blog.reply.Reply;
import shop.mtcoding.blog.user.User;

import java.util.ArrayList;
import java.util.List;

public class BoardResponse {

    // 게시글 조회하기 화면
   @Data
    public static class LookDTO {
        private Integer id;
        private String title;
        private String content;

        public LookDTO(Board board) {
            this.id = board.getId();
            this.title = board.getTitle();
            this.content = board.getContent();
        }
    }
}
package shop.mtcoding.blog.board;

import jakarta.servlet.http.HttpSession;
import lombok.RequiredArgsConstructor;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import shop.mtcoding.blog._core.utils.ApiUtil;
import shop.mtcoding.blog.user.User;

import java.util.List;

@RequiredArgsConstructor
@RestController
public class BoardController {

    private final HttpSession session;
    private final BoardService boardService;

    @GetMapping("/api/boards/{id}")
    public ResponseEntity<?> lookUp(@PathVariable Integer id) {
        BoardResponse.LookDTO respDTO = boardService.lookUp(id);
        return ResponseEntity.ok(new ApiUtil<>(respDTO));
    }
}
package shop.mtcoding.blog.board;

import lombok.RequiredArgsConstructor;
import org.springframework.data.domain.Sort;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import shop.mtcoding.blog._core.errors.exception.Exception403;
import shop.mtcoding.blog._core.errors.exception.Exception404;
import shop.mtcoding.blog.user.User;

import java.util.List;

@RequiredArgsConstructor
@Service
public class BoardService {

    private final BoardJPARepository boardJPARepository;

    public BoardResponse.LookDTO lookUp(int boardId){ // 글조회
        Board board = boardJPARepository.findById(boardId)
                .orElseThrow(() -> new Exception404("게시글을 찾을 수 없습니다"));
        return new BoardResponse.LookDTO(board);
    }
}
notion image
 

2. 글 쓰기

package shop.mtcoding.blog.board;

import lombok.AllArgsConstructor;
import lombok.Data;
import shop.mtcoding.blog.reply.Reply;
import shop.mtcoding.blog.user.User;

import java.util.ArrayList;
import java.util.List;

public class BoardResponse {

    // 글 쓰기
   @Data
    public static class SaveDTO {
        private Integer id;
        private String title;
        private String content;


        public SaveDTO(Board board) {
            this.id = board.getId();
            this.title = board.getTitle();
            this.content = board.getContent();
        }
    }
}
package shop.mtcoding.blog.board;

import jakarta.servlet.http.HttpSession;
import lombok.RequiredArgsConstructor;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import shop.mtcoding.blog._core.utils.ApiUtil;
import shop.mtcoding.blog.user.User;

import java.util.List;

@RequiredArgsConstructor
@RestController
public class BoardController {

    private final HttpSession session;
    private final BoardService boardService;

    @GetMapping("/api/boards/{id}")
    public ResponseEntity<?> lookUp(@PathVariable Integer id) {
        BoardResponse.LookDTO respDTO = boardService.lookUp(id);
        return ResponseEntity.ok(new ApiUtil<>(respDTO));
    }
}
package shop.mtcoding.blog.board;

import lombok.RequiredArgsConstructor;
import org.springframework.data.domain.Sort;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import shop.mtcoding.blog._core.errors.exception.Exception403;
import shop.mtcoding.blog._core.errors.exception.Exception404;
import shop.mtcoding.blog.user.User;

import java.util.List;

@RequiredArgsConstructor
@Service
public class BoardService {

    private final BoardJPARepository boardJPARepository;

    @Transactional
    public BoardResponse.SaveDTO save(BoardRequest.SaveDTO reqDTO, User sessionUser) {
        Board board = boardJPARepository.save(reqDTO.toEntity(sessionUser));
        return new BoardResponse.SaveDTO(board); // sessionUser 정보는 사용되지 않으므로 제거
    }
}
 

3. 글 수정하기 

package shop.mtcoding.blog.board;

import lombok.AllArgsConstructor;
import lombok.Data;
import shop.mtcoding.blog.reply.Reply;
import shop.mtcoding.blog.user.User;

import java.util.ArrayList;
import java.util.List;

public class BoardResponse {

    // 게시글 조회하기 화면
    @Data
    public static class UpdateDTO {
        private Integer id;
        private String title;
        private String content;

        public UpdateDTO(Board board) {
            this.id = board.getId();
            this.title = board.getTitle();
            this.content = board.getContent();
        }
    }
}
package shop.mtcoding.blog.board;

import jakarta.servlet.http.HttpSession;
import lombok.RequiredArgsConstructor;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import shop.mtcoding.blog._core.utils.ApiUtil;
import shop.mtcoding.blog.user.User;

import java.util.List;

@RequiredArgsConstructor
@RestController
public class BoardController {

    private final HttpSession session;
    private final BoardService boardService;

    @PutMapping("/api/boards/{id}")
    public ResponseEntity<?> update(@PathVariable Integer id, @RequestBody BoardRequest.UpdateDTO reqDTO) {
        User sessionUser = (User) session.getAttribute("sessionUser");
        BoardResponse.UpdateDTO respDTOd = boardService.update(id, sessionUser.getId(), reqDTO);
        return ResponseEntity.ok(new ApiUtil<>(respDTOd));
    }
}
package shop.mtcoding.blog.board;

import lombok.RequiredArgsConstructor;
import org.springframework.data.domain.Sort;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import shop.mtcoding.blog._core.errors.exception.Exception403;
import shop.mtcoding.blog._core.errors.exception.Exception404;
import shop.mtcoding.blog.user.User;

import java.util.List;

@RequiredArgsConstructor
@Service
public class BoardService {

    private final BoardJPARepository boardJPARepository;

    public BoardResponse.UpdateDTO update(int boardId, int sessionUserId, BoardRequest.UpdateDTO reqDTO) {
        // 1. 조회 및 예외처리
        Board board = boardJPARepository.findById(boardId)
                .orElseThrow(() -> new Exception404("게시글을 찾을 수 없습니다"));
        board.setTitle(reqDTO.getTitle());
        board.setContent(reqDTO.getContent());

        return new BoardResponse.UpdateDTO(board);
}
notion image
 

4. 글 삭제하기

package shop.mtcoding.blog.board;

import lombok.AllArgsConstructor;
import lombok.Data;
import shop.mtcoding.blog.reply.Reply;
import shop.mtcoding.blog.user.User;

import java.util.ArrayList;
import java.util.List;

public class BoardResponse {

    // 게시글 조회하기 화면
    @Data
    public static class DeleteDTO {
        private Integer id;
        private String title;
        private String content;

        public DeleteDTO(Board board) {
            this.id = board.getId();
            this.title = board.getTitle();
            this.content = board.getContent();
        }
    }
}
package shop.mtcoding.blog.board;

import jakarta.servlet.http.HttpSession;
import lombok.RequiredArgsConstructor;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import shop.mtcoding.blog._core.utils.ApiUtil;
import shop.mtcoding.blog.user.User;

import java.util.List;

@RequiredArgsConstructor
@RestController
public class BoardController {

    private final HttpSession session;
    private final BoardService boardService;

    @DeleteMapping("/api/boards/{id}")
    public ResponseEntity<?> delete(@PathVariable Integer id) {
        User sessionUser = (User) session.getAttribute("sessionUser");
        BoardResponse.DeleteDTO respDTO = boardService.delete(id, sessionUser.getId());
        return ResponseEntity.ok(new ApiUtil<>(null));
    }
}
package shop.mtcoding.blog.board;

import lombok.RequiredArgsConstructor;
import org.springframework.data.domain.Sort;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import shop.mtcoding.blog._core.errors.exception.Exception403;
import shop.mtcoding.blog._core.errors.exception.Exception404;
import shop.mtcoding.blog.user.User;

import java.util.List;

@RequiredArgsConstructor
@Service
public class BoardService {

    private final BoardJPARepository boardJPARepository;

    @Transactional
    public BoardResponse.DeleteDTO delete(int boardId, Integer sessionUserId) {
        Board board = boardJPARepository.findById(boardId)
                .orElseThrow(() -> new Exception404("게시글을 찾을 수 없습니다"));
        if (sessionUserId != board.getUser().getId()) {
            throw new Exception403("게시글을 삭제할 권한이 없습니다");
        }
        boardJPARepository.deleteById(boardId);
        return new BoardResponse.DeleteDTO(board);
    }
notion image
Share article

More articles

See more posts

51. SSR 프로젝트에 JWT사용하기

송민경's avatar
April 2, 2024
51. SSR 프로젝트에 JWT사용하기

52. JWT

송민경's avatar
April 2, 2024
52. JWT

48. 응답 DTO - DTO로 바로 받기v7

송민경's avatar
March 21, 2024
48. 응답 DTO - DTO로 바로 받기v7

47. 응답 DTO - 글 상세보기 만들기v7

송민경's avatar
March 21, 2024
47. 응답 DTO - 글 상세보기 만들기v7
RSSPowered by inblog