30. 익명 게시판 만들기-게시글 수정하기

수정 화면 만들기

{{> layout/header}}

<div class="container p-5">
    <div class="card">
        <div class="card-header"><b>익명 글수정 화면입니다</b></div>
        <div class="card-body">
            <form action="/board/1/update" method="post" enctype="application/x-www-form-urlencoded">
                <div class="mb-3">
                    <input type="text" class="form-control" placeholder="Enter author" name="author" value="HG">
                </div>
                <div class="mb-3">
                    <input type="text" class="form-control" placeholder="Enter title" name="title" value="제목1">
                </div>
                <div class="mb-3">
                    <textarea class="form-control" rows="5" name="content">내용1</textarea>
                </div>
                <button type="submit" class="btn btn-primary form-control">글수정완료</button>
            </form>
        </div>
    </div>
</div>

{{> layout/footer}}

DTO만들기

컨트롤러 생성하기

@PostMapping("/board/{id}/update")
    public String update(@PathVariable int id,BoardRequest.saveAgainDTO requestDTO,HttpServletRequest request){

        if(requestDTO.getTitle().length()>20){
            request.setAttribute("status",400);
            request.setAttribute("msg","제목은 20자를 넘을 수 없습니다.");
            return "error/40x";
        }

        if(requestDTO.getContent().length()>20){
            request.setAttribute("status",400);
            request.setAttribute("msg","내용은 20자를 넘을 수 없습니다.");
            return "error/40x";
        }
        boardRepository.update(requestDTO,id);

        return "redirect:/";
    }

레파지토리

@Transactional
    public void update(BoardRequest.saveAgainDTO requestDTO,int id) {
        Query query = em.createNativeQuery("update board_tb set author =?, title = ?, content = ? where id = ? ");
        query.setParameter(1,requestDTO.getAuthor());
        query.setParameter(2,requestDTO.getTitle());
        query.setParameter(3,requestDTO.getContent());
        query.setParameter(4,id);
        query.executeUpdate();

    }

데이터수정