$$config title: [ ? ] InstaKG 백엔드 프로그램 구현 keywords: - 로그인 - 메인페이지 - 처음화면 $$ # 화면 구현 및 소스코드 ## 파일업로드 ### ?‍ 동작화면 ![](https://ifh.cc/g/PCJsOM.png) ### ?‍ 결과화면 ![](https://ifh.cc/g/vmcpHN.jpg) ### ? 주요소스코드 #### [ FilesController ] ```java @GetMapping("/multi-file") public String showMultiForm(){ return "/question"; } @PostMapping("/multi-file") public String multiFileUpload( Model model, @RequestParam("multiFile") List multiFileList, QuestionForm questionForm )throws InterruptedException{ try{ filesService.upload(questionForm, multiFileList); }catch(Exception e){ questionService.create(questionForm.getContent()); } return "redirect:/question/list"; } ``` #### [ FilesService] ```java private final FilesRepository filesRepository; private final QuestionService questionService; @Async public void upload(QuestionForm questionForm, List multiFileList){ String root = System.getProperty("user.dir") + "\\src\\main\\resources\\static\\uploadFiles"; File fileCheck = new File(root); if (!fileCheck.exists()) fileCheck.mkdirs(); List> fileList = new ArrayList<>(); for(int i = 0; i < multiFileList.size(); i++){ String originFile = multiFileList.get(i).getOriginalFilename(); String ext = originFile.substring(originFile.lastIndexOf(".")); String changeFile = UUID.randomUUID().toString() + ext; Map map = new HashMap<>(); map.put("originFile", originFile); map.put("changeFile", changeFile); fileList.add(map); } try{ for(int i = 0; i < multiFileList.size(); i++){ File uploadFile = new File(root + "\\" + fileList.get(i).get("changeFile")); multiFileList.get(i).transferTo(uploadFile); } uploadDB(fileList, questionForm); System.out.println("다중 파일 업로드 성공!"); }catch(IllegalStateException | IOException e){ System.out.println("다중 파일 업로드 실패 ㅠㅠ"); for(int i = 0; i < multiFileList.size(); i++){ new File(root + "\\" + fileList.get(i).get("changeFile")).delete(); } e.printStackTrace(); } } private void uploadDB(List> fileList, QuestionForm questionForm) { Question question = questionService.create(questionForm.getContent()); for(Map file : fileList){ Files files = new Files(); files.setFilename(file.get("changeFile")); files.setQuestion(question); filesRepository.save(files); } } ``` ## 설정(수정, 삭제) ### ?‍ 동작화면 ![](https://ifh.cc/g/ndhdSq.png) ### ? 주요소스코드 #### [ SettingController ] ```java private final QuestionService questionService; @GetMapping("/delete/{id}") public String delete(@PathVariable("id") Integer id){ Question question = this.questionService.getQuestion(id); this.questionService.delete(question); return "redirect:/question/list"; } @GetMapping("/modify/{id}") public String modify(Model model, @PathVariable("id") Integer id, QuestionForm questionForm) { Question question = this.questionService.getQuestion(id); questionForm.setContent(questionForm.getContent()); model.addAttribute("question", question); return "modify"; } @PostMapping("/modify/{id}") public String modify(Model model, @PathVariable("id") Integer id, @RequestParam(value = "onOff", required = false) Boolean onOff, @Valid QuestionForm questionForm, BindingResult bindingResult) { Question question = this.questionService.getQuestion(id); if (bindingResult.hasErrors()) { model.addAttribute("question", question); return "modify"; } this.questionService.modify(question, questionForm.getContent(), onOff); return "redirect:/question/list"; } ``` #### [ questionService ] ```java public void delete(Question question){ String root = System.getProperty("user.dir") + "\\src\\main\\resources\\static\\uploadFiles"; for(Files file: question.getFileList()){ new File(root + "\\" + file.getFilename()).delete(); } this.questionRepository.delete(question); } public void modify(Question question, String content, Boolean onOff){ question.setContent(content); question.setModifyDate(LocalDateTime.now()); question.setOnOff(onOff); this.questionRepository.save(question); } ```