[Spring JPA] 9. 게시판 글 등록하기

YB·2023년 8월 2일
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JPA

목록 보기
10/12

1. 글 등록 html

write.html

<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:th="http://www.thymeleaf.org"
      xmlns:layout="http://www.ultraq.net.nz/thymeleaf/layout"
      layout:decorate="~{layout/default_layout}">

<div layout:fragment="content" class="content">
    <form th:action th:object="${form}" method="post">
        <article>
            <div class="container" role="main">
                <div class="mb-3">
                    <label for="boardTitle">제목</label>
                    <input type="text" class="form-control" id="boardTitle" name="title" placeholder="제목을 입력해 주세요">
                </div>
                <br>
                <div class="mb-3">
                    <label for="reg_id">작성자</label>
                    <input type="text" class="form-control" id="reg_id" name="regId"  value="관리자" readonly>
                </div>
                <br>
                <div class="mb-3">
                    <label for="boardContent">내용</label>
                    <textarea class="form-control" rows="5" id="boardContent" name="content" placeholder="내용을 입력해 주세요"></textarea>
                </div>
                <br>
                <br>
                <div>
                    <button type="submit" class="btn btn-sm btn-primary" id="btnSave">저장</button>
                    <button onclick="location.href='/'" type="button" class="btn btn-sm btn-primary" id="btnList">목록</button>
                </div>
            </div>
        </article>
    </form>
</div>
</html>

<script>
</script>

2. 글 등록 Controller 및 Service

BoardService.java

package jpa.board.service;

import jpa.board.dto.BoardDto;
import jpa.board.entity.Board;
import jpa.board.entity.Member;
import jpa.board.repository.BoardRepository;
import jpa.board.repository.MemberRepository;
import lombok.RequiredArgsConstructor;
import org.springframework.stereotype.Service;

import javax.transaction.Transactional;
import java.util.List;

@Service
@RequiredArgsConstructor
public class BoardService {

    private final BoardRepository boardRepository;
    private final MemberRepository memberRepository;

    @Transactional
    public Long saveBoard(BoardDto boardDto) {
        List<Member> memberList = memberRepository.findAll();
        Member member = memberList.get(0);
        Board board = null;

        //insert
        if (boardDto.getId() == null) {
            board = boardDto.toEntity(member);
            boardRepository.save(board);
        } else { //update
            board = boardRepository.findById(boardDto.getId()).get();
            board.update(boardDto.getTitle(), boardDto.getContent());
        }

        return board.getId();
    }

    @Transactional
    public Board deleteBoard(Long id) {
        Board board = boardRepository.findById(id).get();

        //플래그값이 Y이면 논리삭제
        board.delete("Y");
        return board;
    }

}

BoardController.java

package jpa.board.controller;

import jpa.board.dto.BoardDto;
import jpa.board.repository.CustomBoardRepository;
import jpa.board.service.BoardService;
import lombok.RequiredArgsConstructor;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;

import java.util.List;

@Controller
@RequiredArgsConstructor
public class BoardController {

    private final CustomBoardRepository customBoardRepository;
    private final BoardService boardService;

    @GetMapping("/")
    public String list(String searchVal, Pageable pageable, Model model) {
        Page<BoardDto> results = customBoardRepository.selectBoardList(searchVal, pageable);
        model.addAttribute("list", results);
        model.addAttribute("maxPage", 5);
        model.addAttribute("searchVal", searchVal);

        pageModelPut(results, model);
        return "board/list";
    }

    private void pageModelPut(Page<BoardDto> results, Model model) {
        model.addAttribute("totalCount", results.getTotalElements());
        model.addAttribute("size", results.getPageable().getPageSize());
        model.addAttribute("number", results.getPageable().getPageNumber());
    }

    @GetMapping("/write")
    public String write(Model model) {
        model.addAttribute("form", new BoardDto());
        return "board/write";
    }

    @PostMapping("/write")
    public String save(BoardDto boardDto) {
        boardService.saveBoard(boardDto);
        return "redirect:/";
    }

    @GetMapping("/update")
    public String upadte() {
        return "board/update";
    }

    @PostMapping("/delete")
    public String delete(@RequestParam List<String> boardIds) {

        for(int i = 0; i < boardIds.size(); i++) {
            Long id = Long.valueOf(boardIds.get(i));
            boardService.deleteBoard(id);
        }

        return "redirect:/";
    }
}

3. 결과화면

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