[FEAT] 공지 상세보기 API 구현

src/main/java/com/neighbors/tohero/application/baseResponse/BaseResponseMessage.java

@@ -12,7 +12,9 @@ public enum BaseResponseMessage {
     토큰_재발급이_성공했습니다("토큰 재발급이 성공했습니다"),
 
     //notice success
+    공지_무한페이징_조회_성공했습니댜("공지 무한페이징 조회 성공했습니댜"),
     공지_조회_성공했습니댜("공지 조회 성공했습니댜"),
+    일치하는_공지가_없습니다("일치하는 공지가 없습니다"),
 
     //user
     이미_존재하는_유저입니다("이미 존재하는 유저입니다"),

src/main/java/com/neighbors/tohero/application/notice/dto/GetNoticeResponse.java

@@ -7,12 +7,14 @@
 public record GetNoticeResponse(List<NoticeDTO> noticeList) {
 
     public record NoticeDTO(
+            long noticeId,
             String title,
             String content,
             String createdAT
     ) {
         public static NoticeDTO from(Notice notice) {
             return new GetNoticeResponse.NoticeDTO(
+                    notice.getNoticeId(),
                     notice.getNoticeTitle(),
                     notice.getNoticeContent(),
                     notice.getCreatedAt().toLocalDate().toString()

src/main/java/com/neighbors/tohero/application/notice/service/NoticeService.java

@@ -24,9 +24,19 @@ public BaseResponse<GetNoticeResponse> getNotice(Pageable pageable){
 
         return new BaseResponse<>(
                 BaseResponseStatus.OK,
-                BaseResponseMessage.공지_조회_성공했습니댜.getMessage(),
+                BaseResponseMessage.공지_무한페이징_조회_성공했습니댜.getMessage(),
                 GetNoticeResponse.createSuccessObjFrom(notices)
         );
     }
 
+    public BaseResponse<GetNoticeResponse.NoticeDTO> getNoticeDetail(long noticeId){
+        Notice notice = getNotice.getNotice(noticeId);
+
+        return new BaseResponse<>(
+                BaseResponseStatus.OK,
+                BaseResponseMessage.공지_조회_성공했습니댜.getMessage(),
+                GetNoticeResponse.NoticeDTO.from(notice)
+        );
+    }
+
 }

src/main/java/com/neighbors/tohero/common/exception/notice/NoticeException.java

@@ -0,0 +1,15 @@
+package com.neighbors.tohero.common.exception.notice;
+
+import com.neighbors.tohero.application.baseResponse.BaseResponseStatus;
+
+public class NoticeException extends RuntimeException {
+
+    private final BaseResponseStatus status;
+    private final String message;
+
+    public NoticeException(BaseResponseStatus status, String message) {
+        super(message);
+        this.status = status;
+        this.message = message;
+    }
+}

src/main/java/com/neighbors/tohero/domain/domain/notice/service/GetNotice.java

@@ -21,4 +21,8 @@ public List<Notice> getPagedNotice(Pageable pageable) {
     public List<Notice> getTopNotices(int exposeNoticeNumber){
         return noticeRepository.getTopNotices(exposeNoticeNumber);
     }
+
+    public Notice getNotice(long noticeId) {
+        return noticeRepository.getNoticeById(noticeId);
+    }
 }

src/main/java/com/neighbors/tohero/domain/query/NoticeRepository.java

@@ -8,4 +8,5 @@
 public interface NoticeRepository {
     List<Notice> getPagedNotice(Pageable pageable);
     List<Notice> getTopNotices(int exposeNoticeNumber);
+    Notice getNoticeById(long noticeId);
 }

src/main/java/com/neighbors/tohero/infrastructure/query/impl/NoticeRepositoryImpl.java

@@ -1,5 +1,8 @@
 package com.neighbors.tohero.infrastructure.query.impl;
 
+import com.neighbors.tohero.application.baseResponse.BaseResponseMessage;
+import com.neighbors.tohero.application.baseResponse.BaseResponseStatus;
+import com.neighbors.tohero.common.exception.notice.NoticeException;
 import com.neighbors.tohero.domain.domain.notice.model.Notice;
 import com.neighbors.tohero.domain.query.NoticeRepository;
 import com.neighbors.tohero.infrastructure.entity.NoticeEntity;
@@ -10,6 +13,7 @@
 import org.springframework.stereotype.Repository;
 
 import java.util.List;
+import java.util.Optional;
 
 @Repository
 @RequiredArgsConstructor
@@ -35,4 +39,15 @@ public List<Notice> getTopNotices(int exposeNoticeNumber) {
                 .map(noticeMapper::toDomain)
                 .toList();
     }
+
+    @Override
+    public Notice getNoticeById(long noticeId) {
+        NoticeEntity noticeEntity = noticeEntityRepository.findById(noticeId)
+                .orElseThrow(() -> new NoticeException(
+                        BaseResponseStatus.NO_RESULT,
+                        BaseResponseMessage.일치하는_공지가_없습니다.getMessage()
+                ));
+
+        return noticeMapper.toDomain(noticeEntity);
+    }
 }

src/main/java/com/neighbors/tohero/presentation/controller/NoticeController.java

@@ -9,6 +9,7 @@
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
 @RestController
@@ -24,4 +25,11 @@ public ResponseEntity<BaseResponse> getNotice(@ParameterObject Pageable pageable
         return ResponseEntity.ok()
                 .body(noticeService.getNotice(pageable));
     }
+
+    @Operation(summary = "공지 API", description = "공지사항 상세보기 API입니다.")
+    @GetMapping("/notice/detail")
+    public ResponseEntity<BaseResponse> getNoticeDetail(@RequestParam long noticeId){
+        return ResponseEntity.ok()
+                .body(noticeService.getNoticeDetail(noticeId));
+    }
 }

src/main/java/com/neighbors/tohero/presentation/exception_handler/DTOFieldExceptionControllerAdvice.java

@@ -32,7 +32,7 @@ public DTOFieldExceptionControllerAdvice() {
 
     @ResponseStatus(HttpStatus.BAD_REQUEST)
     @ExceptionHandler(MethodArgumentNotValidException.class)
-    public ResponseEntity<BaseResponse> handle_UserValidationException(MethodArgumentNotValidException e) {
+    public ResponseEntity<BaseResponse> handle_fieldValidationException(MethodArgumentNotValidException e) {
         BaseResponse response = new BaseResponse(
                 BaseResponseStatus.BAD_REQUEST,
                 fieldErrorMapper.get(e.getBindingResult().getFieldError().getField()).getMessage()

src/main/java/com/neighbors/tohero/presentation/exception_handler/NoticeExceptionControllerAdvice.java

@@ -0,0 +1,26 @@
+package com.neighbors.tohero.presentation.exception_handler;
+
+import com.neighbors.tohero.application.baseResponse.BaseResponse;
+import com.neighbors.tohero.application.baseResponse.BaseResponseStatus;
+import com.neighbors.tohero.common.exception.notice.NoticeException;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+
+@RestControllerAdvice
+public class NoticeExceptionControllerAdvice {
+
+    @ResponseStatus(HttpStatus.BAD_REQUEST)
+    @ExceptionHandler(NoticeException.class)
+    public ResponseEntity<BaseResponse> handle_NoticeException(NoticeException e) {
+        BaseResponse response = new BaseResponse(
+                BaseResponseStatus.NO_RESULT,
+                e.getMessage()
+        );
+
+        return ResponseEntity.badRequest()
+                .body(response);
+    }
+}