42. REST API 전환 - METHOD 변경 & 주소 변환하기v7

1. UserController 에 주소 변환하기

• 인증이 필요 없는 주소는 users를 붙일 필요가 없음

• 인증과 관련된 controller를 따로 만듦

package shop.mtcoding.blog.user;

import jakarta.servlet.http.HttpSession;
import lombok.RequiredArgsConstructor;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.PutMapping;

@RequiredArgsConstructor
@Controller
public class UserController {

    private final UserService userService;
    private final HttpSession session;

    // TODO: 회원 정보 조회 API 필요함

    @PutMapping("api/users/{id}")
    public String update(UserRequest.UpdateDTO reqDTO) {
        User sessionUser = (User) session.getAttribute("sessionUser");
        User newSessionUser = userService.update(sessionUser.getId(), reqDTO);
        session.setAttribute("sessionUser", newSessionUser);
        return "redirect:/";
    }

    @PostMapping("/join") // 인증이 필요하지 않아 users를 붙이지 않음
    public String join(UserRequest.JoinDTO reqDTO) {
        userService.join(reqDTO);
        return "redirect:/";
    }

    @PostMapping("/login")
    public String login(UserRequest.LoginDTO reqDTO) {
        User sessionUser = userService.login(reqDTO);
        session.setAttribute("sessionUser", sessionUser);
        return "redirect:/";
    }

    @GetMapping("/logout")
    public String logout() {
        session.invalidate();
        return "redirect:/";
    }
}

2. WebMvcConfig 수정하기

• api 주소가 붙은 주소는 인증이 필요함

package shop.mtcoding.blog._core.config;

import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import shop.mtcoding.blog._core.intercepter.LoginInterceptor;

@Configuration // IoC
public class WebMvcConfig implements WebMvcConfigurer {

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
        registry.addInterceptor(new LoginInterceptor())
                .addPathPatterns("/api/**")
                .excludePathPatterns("/api/boards/{id:\\d+}");
    }
}

3. UserController 변경된 주소

@PutMapping("/api/users/{id}")
@GetMapping("/api/users/{id}")
@PostMapping("/join")
@PostMapping("/login")
@GetMapping("/logout")

4. BoardController 주소 변환하기

package shop.mtcoding.blog.board;

import jakarta.servlet.http.HttpSession;
import lombok.RequiredArgsConstructor;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;
import shop.mtcoding.blog.user.User;

@RequiredArgsConstructor
@Controller
public class BoardController {

    private final HttpSession session;
    private final BoardService boardService;

    // TODO: 글 목록(model)을 보여줄 API가 필요함
    /*@GetMapping("/")*/
    // TODO: 글 상세보기 API 필요
    /*@GetMapping("/api/boards/{id}/detail")*/
    // TODO: 글 조회 API 필요
    /*@GetMapping("/api/boards/{id}")*/

    @PostMapping("/api/boards")
    public String save(BoardRequest.SaveDTO reqDTO) {
        User sessionUser = (User) session.getAttribute("sessionUser");
        boardService.save(reqDTO, sessionUser);
        return "redirect:/";
    }

    // @Transactional
    @PutMapping("/api/boards/{id}")
    public String update(@PathVariable Integer id, BoardRequest.UpdateDTO reqDTO) {
        User sessionUser = (User) session.getAttribute("sessionUser");
        boardService.update(id, sessionUser.getId(), reqDTO);
        return "redirect:/board/" + id;
    }

    @DeleteMapping("/api/boards/{id}")
    public String delete(@PathVariable Integer id) {
        User sessionUser = (User) session.getAttribute("sessionUser");
        boardService.delete(id, sessionUser.getId());
        return "redirect:/";
    }
}

5. BoardController 변경된 주소

@GetMapping("/")
@GetMapping("/api/boards/{id}/detail")
@GetMapping("/api/boards/{id}")
@PostMapping("/api/boards")
@PutMapping("/api/boards/{id}")
@DeleteMapping("/api/boards/{id}")

6. ReplyController 에 주소 변환하기

• json으로 응답하기에 페이지 id를 몰라도 됨

package shop.mtcoding.blog.reply;

import jakarta.servlet.http.HttpSession;
import lombok.RequiredArgsConstructor;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import shop.mtcoding.blog.user.User;

@RequiredArgsConstructor
@Controller
public class ReplyController {

    private final ReplyService replyService;
    private final HttpSession session;

    @DeleteMapping("/api/replies/{id}")
    public String delete(@PathVariable Integer replyId) { // json으로 응답하기에 페이지 id를 몰라도 됨
        User sessionUser = (User) session.getAttribute("sessionUser");
        replyService.delete(replyId, sessionUser.getId());
        return "redirect:/board/";
    }

    @PostMapping("api/replies")
    public String save(ReplyRequest.SaveDTO reqDTO) {
        User sessionUser = (User) session.getAttribute("sessionUser");
        replyService.save(reqDTO, sessionUser);
        return "redirect:/board/" + reqDTO.getBoardId();
    }
}

7. ReplyController 변경된 주소

@DeleteMapping("/api/replies/{id}")
@PostMapping("/api/replies")