게시글 삭제 기능 추가

chrkb1569·2022년 7월 13일

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오늘은 게시글 삭제 기능을 추가하였으며, 게시글을 생성하는 버튼을 추가하여 리스트에서도 게시글을 추가할 수 있게끔 설정하였습니다.

package crud_toy_project.crud.controller;

import crud_toy_project.crud.entity.board;
import crud_toy_project.crud.service.CrudService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.*;

import java.util.List;

@Controller// 해당 클래스가 Controller임을 표기
public class CrudController {
    @Autowired
    private CrudService crudService;

    @RequestMapping("/write")
    public String write_form() {
        return "writeform";
    }

    @PostMapping("/board/write")
    public String write(board board, Model model) {
        crudService.save(board);
        model.addAttribute("board", board);

        return "writeresultform";
    }

    @GetMapping("/boards")
    public String boards(Model model) {
        List<board> boards = crudService.getList();

        model.addAttribute("boards", boards);

        return "boards";
    }

    @GetMapping("/boards/{boardId}")
    public String board_detail(@PathVariable("boardId") Integer boardId, Model model) {
        board Find_board = crudService.findById(boardId);

        model.addAttribute("board", Find_board);

        return "board_detail";
    }

    @GetMapping("/boards/edit/{boardId}")
    public String edit_form(@PathVariable Integer boardId, Model model) {
        board Find_board = crudService.findById(boardId);

        model.addAttribute("board", Find_board);

        return "edit";
    }

    @PostMapping("/boards/edit/{boardId}")
    public String edit_result(@PathVariable Integer boardId, @ModelAttribute board board, Model model) {
        crudService.update_board(boardId, board);

        return "edit_result";
    }

    @GetMapping("/board/delete/{boardId}")
    public String delete_board(@PathVariable Integer boardId) {
        crudService.delete_board(boardId);

        return "redirect:/boards";
    }
}

package crud_toy_project.crud.service;

import crud_toy_project.crud.entity.board;
import crud_toy_project.crud.repository.CrudRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class CrudService {
    @Autowired
    private CrudRepository crudRepository;

    public void save(board board) {
     crudRepository.save(board);
    }

    public List<board> getList() {
        return crudRepository.findAll();
    }

    public board findById(Integer Id) {
        return crudRepository.findById(Id).get();
    }

    public void update_board(Integer Id, board board) {
        board find = crudRepository.findById(Id).get();
        find.setTitle(board.getTitle());
        find.setUser_id(board.getUser_id());
        find.setContent(board.getContent());

        crudRepository.save(find);
    }

    public void delete_board(Integer Id) {
        board find = crudRepository.findById(Id).get();
        crudRepository.delete(find);
    }
}

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>게시글 상세 확인 폼</title>
</head>

<style>
  .layout {
    width : 500px;
    margin : 0 auto;
    margin-top: 40px;
  }

  .board_title {
    width : 500px;
    margin-bottom: 10px;
  }

  .board_user_id {
    width : 500px;
    margin-bottom: 10px;
  }

  .board_content {
    width : 500px;
    margin-bottom: 10px;
  }
</style>

<body>
<div class = "layout">
  <div class>
    <h2>게시글 상세</h2>
  </div>

  <div class = "board_title">
    <label for="title">게시글 제목</label>
    <input type="text" id="title" name="title" class="form-control" th:value="${board.title}" readonly>
  </div>

  <div class = "board_user_id">
    <label for="user_id">사용자 ID</label>
    <input type="text" id="user_id" name="user_id" class="form-control" th:value="${board.user_id}" readonly>
  </div>

  <div class = "board_content">
    <label for="content">게시글</label>
    <input type="text" id="content" name="content" class="form-control" th:value="${board.content}" readonly>
  </div>

  <div class>
    <div>
      <button onclick="location.href='/boards'" th:onclick="|location.href='@{/boards}'|"
              type="button">게시글 목록</button>
    </div>

    <div>
      <button onclick="location.href='/boards/edit/{boardselect}(boardselect=${board.number})'" th:onclick="|location.href='@{/boards/edit/{boardselect}(boardselect=${board.number})}'|"
              type="button">게시글 수정</button>
    </div>

    <div>
      <button onclick="location.href='/board/delete/{boardselect}(boardselect=${board.number})'" th:onclick="|location.href='@{/board/delete/{boardselect}(boardselect=${board.number})}'|"
              type="button">게시글 삭제</button>
    </div>
  </div>
</body>
</html>

<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>게시글 목록 조회</title>
</head>

<style>
    .layout {
        width : 500px;
        margin : 0 auto;
        margin-top: 40px;
    }
</style>

<body>
<div class="layout">
    <table>
        <thead>
        <tr>
            <th>번호</th>
            <th>제목</th>
            <th>사용자</th>
        </tr>
        </thead>

        <tbody>
        <tr th:each="board : ${boards}">
            <td><a th:text="${board.number}"></a></td>
            <td><a th:href="@{/boards/{boardselect}(boardselect=${board.number})}" th:text="${board.title}"></a></td>
            <td><a th:text="${board.user_id}"></a></td>
        </tr>
        </tbody>

    </table>
</div>

<div class>
    <div>
        <button onclick="location.href='/write'" th:onclick="|location.href='@{/write}'|"
                type="button">게시글 작성</button>
    </div>
</div>

</body>
</html>