7주차 미션 / 서버 4조 김재윤

src/main/java/kuit/springbasic/controller/HomeController.java

@@ -1,12 +1,62 @@
 package kuit.springbasic.controller;
 
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import kuit.springbasic.db.QuestionRepository;
+import kuit.springbasic.domain.Question;
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.servlet.ModelAndView;
+
+import java.util.Collection;
+
+@Slf4j   //logger 객체 생성하지 않아도 바로 logging 할 수 있도록 해줌
+@Controller
+@RequiredArgsConstructor
 public class HomeController {
+    private final QuestionRepository questionRepository;
+
+//    public HomeController(QuestionRepository questionRepository){
+//        this.questionRepository = questionRepository;
+//    }
 
     /**
-     * TODO: showHome
      * showHomeV1 : parameter - HttpServletRequest, HttpServletResponse / return - ModelAndView
      * showHomeV2 : parameter - none / return - ModelAndView
      * showHomeV3 : parameter - Model / return - String
      */
 
-}
+    @RequestMapping("/homeV1")
+    public ModelAndView showHomeV1(HttpServletRequest request, HttpServletResponse response){
+        log.info("showHomeV1");
+        ModelAndView mav = new ModelAndView("home");
+
+        Collection<Question> questions = questionRepository.findAll();
+//        mav.getModel().put("questions", questions);
+        mav.addObject("questions", questions);
+        return mav;
+    }
+
+    @RequestMapping("/homeV2")
+    public ModelAndView showHomeV2(){
+        log.info("showHomeV2");
+        ModelAndView mav = new ModelAndView("home");
+
+        Collection<Question> questions = questionRepository.findAll();
+        mav.addObject("questions", questions);
+        return mav;
+    }
+
+    @RequestMapping("/")
+    public String showHomeV3(Model model){
+        log.info("showHomeV3");
+
+        Collection<Question> questions = questionRepository.findAll();
+        model.addAttribute("questions", questions);
+        return "home";      //String 을 해당 이름의 view 를 반환한 식으로 자동으로 해석해서 사용함
+    }
+
+}

src/main/java/kuit/springbasic/controller/qna/AnswerController.java

@@ -1,13 +1,92 @@
 package kuit.springbasic.controller.qna;
 
-public class AnswerController {
+import com.fasterxml.jackson.databind.ObjectMapper;
+import jakarta.servlet.http.HttpServletResponse;
+import kuit.springbasic.db.AnswerRepository;
+import kuit.springbasic.db.QuestionRepository;
+import kuit.springbasic.domain.Answer;
+import kuit.springbasic.domain.Question;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.*;
+
+import java.io.IOException;
+import java.sql.SQLException;
+import java.util.HashMap;
+import java.util.Map;
 
+@Controller
+@RequiredArgsConstructor
+@RequestMapping("/api/qna")
+public class AnswerController {
     /**
-     * TODO: addAnswer - @PostMapping
      * addAnswerV0 : @RequestParam, HttpServletResponse
      * addAnswerV1 : @RequestParam, Model
      * addAnswerV2 : @RequestParam, @ResponseBody
      * addAnswerV3 : @ModelAttribute, @ResponseBody
      */
+    private final AnswerRepository answerRepository;
+    private final QuestionRepository questionRepository;
+//    @PostMapping("/addAnswer")
+    public void addAnswerV0(@RequestParam int questionId,
+                            @RequestParam String writer,
+                            @RequestParam String contents,
+                            HttpServletResponse response) throws SQLException, IOException {
+
+        Answer answer = new Answer(questionId, writer, contents);
+        Answer savedAnswer = answerRepository.insert(answer);
+
+        Question question = questionRepository.findByQuestionId(questionId);
+        question.increaseCountOfAnswer();
+
+        Map<String, Object> model = new HashMap<>();
+        model.put("answer", savedAnswer);
+
+        //JSON 응답을 보내기 위한 부분(기존의 jsonView() 에서 처리해주던 부분
+        response.setContentType("application/json");
+        response.setCharacterEncoding("UTF-8");
+        response.getWriter().write(new ObjectMapper().writeValueAsString(model));
+    }
+
+//    @PostMapping("/addAnswer")
+    public String addAnswerV1(@RequestParam int questionId,
+                            @RequestParam String writer,
+                            @RequestParam String contents,
+                            Model model){
+
+        Answer answer = new Answer(questionId, writer, contents);
+        Answer savedAnswer = answerRepository.insert(answer);
+
+        Question question = questionRepository.findByQuestionId(questionId);
+        question.increaseCountOfAnswer();
+
+        model.addAttribute("answer", savedAnswer);
+
+        return "jsonView";          //해당 View가 없는거 아닌가? 모르겠는데
+    }
+
+//    @PostMapping("/addAnswer")
+    @ResponseBody
+    public Answer addAnswerV2(@RequestParam int questionId,
+                              @RequestParam String writer,
+                              @RequestParam String contents) {
+
+        Answer answer = new Answer(questionId, writer, contents);
+
+        Question question = questionRepository.findByQuestionId(questionId);
+        question.increaseCountOfAnswer();
+
+        return answerRepository.insert(answer);
+        //answers 라는 Map을 반환해줌 >> 해당 HashMap 이 JSON으로 변환되고, HTTP 응답 본문에 포함
+    }
+
+    @PostMapping("/addAnswer")
+    @ResponseBody
+    public Answer addAnswerV3(@ModelAttribute Answer answer) {
+        Question question = questionRepository.findByQuestionId(answer.getQuestionId());
+        question.increaseCountOfAnswer();
 
+        return answerRepository.insert(answer);
+    }
 }

src/main/java/kuit/springbasic/controller/qna/QnaController.java

@@ -1,9 +1,34 @@
 package kuit.springbasic.controller.qna;
 
-public class QnaController {
+import kuit.springbasic.db.AnswerRepository;
+import kuit.springbasic.db.QuestionRepository;
+import kuit.springbasic.domain.Answer;
+import kuit.springbasic.domain.Question;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+
+import java.util.List;
 
+@Controller
+@RequiredArgsConstructor
+public class QnaController {
     /**
-     * TODO: showQnA
+     * showQnA
      */
+    private final QuestionRepository questionRepository;
+    private final AnswerRepository answerRepository;
+
+    @GetMapping("/qna/show")
+    public String showQna(@RequestParam("questionId") String questionId, Model model){
+        Question question = questionRepository.findByQuestionId(Integer.parseInt(questionId));
+        List<Answer> answers = (List<Answer>)answerRepository.findAllByQuestionId(question.getQuestionId());
+
+        model.addAttribute("question", question);
+        model.addAttribute("answers", answers);
 
+        return "/qna/show";
+    }
 }

src/main/java/kuit/springbasic/controller/qna/QuestionController.java

@@ -1,25 +1,118 @@
 package kuit.springbasic.controller.qna;
 
-public class QuestionController {
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpSession;
+import kuit.springbasic.db.QuestionRepository;
+import kuit.springbasic.domain.Question;
+import kuit.springbasic.domain.User;
+import kuit.springbasic.util.UserSessionUtils;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.*;
 
-    /**
-     * TODO: showQuestionForm
-     */
+import static kuit.springbasic.util.UserSessionUtils.USER_SESSION_KEY;
+
+@Controller
+@RequiredArgsConstructor
+@RequestMapping("/qna")
+public class QuestionController { //컨트롤러 인자 관련해서? >ModelAndView > defaultModel
+    private final QuestionRepository questionRepository;
 
+    @GetMapping("/form")
+    public String showQuestionForm(HttpServletRequest req){
+        HttpSession session = req.getSession();
+        if (UserSessionUtils.isLoggedIn(session)) {          // 회원만 질문 등록 가능
+            return "/qna/form";
+        }
+
+        return "redirect:/user/loginForm";
+    }
     /**
-     * TODO: createQuestion
      * createQuestionV1 : @RequestParam
      * createQuestionV2 : @ModelAttribute
      */
+//    @PostMapping("/create")
+    public String createQuestionV1(@RequestParam("writer") String writer,
+                                   @RequestParam("title") String title,
+                                   @RequestParam("contents") String contents){
+        Question question = new Question(writer, title, contents, 0);
+        questionRepository.insert(question);
+
+        return "redirect:/";
+    }
+
+    @PostMapping("/create")
+    public String createQuestionV2(@ModelAttribute Question question){
+        questionRepository.insert(question);
+
+        return "redirect:/";
+    }
+
 
     /**
-     * TODO: showUpdateQuestionForm
      * showUpdateQuestionFormV1 : @RequestParam, HttpServletRequest, Model
      * showUpdateQuestionFormV2 : @RequestParam, @SessionAttribute, Model
      */
+//    @GetMapping("/updateForm")
+    public String showUpdateQuestionFormV1(@RequestParam("questionId") String questionId,
+                                         HttpServletRequest req, Model model){   //todo model?
 
-    /**
-     * TODO: updateQuestion
-     */
+        HttpSession session = req.getSession();
+        if (!UserSessionUtils.isLoggedIn(session)) {          // 회원만 질문 등록 가능
+            return "redirect:/user/loginForm";
+        }
+
+        Question question = questionRepository.findByQuestionId(Integer.parseInt(questionId));
+        User user = UserSessionUtils.getUserFromSession(session);
+        if (!question.isSameUser(user)) {
+            throw new IllegalArgumentException();
+        }
+
+        model.addAttribute("question", question);
+        return "/qna/updateForm";           //컨트롤러에서 데이터를 Model에 추가하거나, HttpServletRequest에 직접 값을 설정하면 '뷰'로 자동으로 전달
+    }
+
+    @GetMapping("/updateForm")
+    public String showUpdateQuestionFormV2(@RequestParam("questionId") String questionId,
+                                           @SessionAttribute(USER_SESSION_KEY) User user,
+                                           Model model){
+        // @SessionAttribute -> session 객체에 담겨져있는 값을 읽어올 수 있는 어노테이션
+        if(user == null){
+            return "redirect:/";
+        }
+
+        Question question = questionRepository.findByQuestionId(Integer.parseInt(questionId));
+        if (!question.isSameUser(user)) {
+            throw new IllegalArgumentException();
+        }
+
+        model.addAttribute("question", question);
+        return "/qna/updateForm";
+    }
+
+
+
+    @PostMapping("/update")
+    public String updateQuestion(@RequestParam("questionId") String questionId,
+                                 @RequestParam("title") String title,
+                                 @RequestParam("contents") String contents,
+                                 @SessionAttribute(USER_SESSION_KEY) User user,
+                                 Model model){
+
+        if(user == null){
+            return "redirect:/users/loginForm";
+        }
+
+        Question question = questionRepository.findByQuestionId(Integer.parseInt(questionId));
+        if (!question.isSameUser(user)) {
+            throw new IllegalArgumentException("로그인된 유저와 질문 작성자가 다르면 질문을 수정할 수 없습니다.");
+        }
+
+        question.updateTitleAndContents(title, contents);
+        questionRepository.update(question);
+
+        return "redirect:/";
+    }
 
 }