feat: qna 조회 수정

backend/src/main/java/com/edufocus/edufocus/qna/controller/QnaController.java

@@ -106,9 +106,9 @@ public class QnaController {
     }
 
     @GetMapping("/{id}")
-    public ResponseEntity<Qna> getQna(@PathVariable Long id) {
+    public ResponseEntity<QnaResponseDto> getQna(@PathVariable Long id) {
         try{
-           Qna findQna= qnaService.getQna(id);
+            QnaResponseDto findQna= qnaService.getQna(id);
             return new ResponseEntity<>(findQna, HttpStatus.ACCEPTED);
 
         } catch (SQLException e) {

backend/src/main/java/com/edufocus/edufocus/qna/repository/QnaRepository.java

@@ -13,7 +13,6 @@ import java.util.List;
 @Repository
 public interface QnaRepository extends JpaRepository<Qna, Long> {
 
-
     List<Qna> findByLectureId(Long lecturerId);
     Page<Qna> findByLectureId(Long lectureId, Pageable pageable);
 }

backend/src/main/java/com/edufocus/edufocus/qna/service/QnaService.java

@@ -16,7 +16,7 @@ public interface QnaService {
     QnaResponseDto createQna(Long id, QnaRequestDto qnaRequestDto, Long lecture_id) throws SQLException;
     QnaResponseDto updateQna(Long id,QnaRequestDto qnaRequestDto) throws SQLException;
     void deleteQna(Long id) throws SQLException;
-    Qna getQna(Long id) throws SQLException;
+    QnaResponseDto getQna(Long id) throws SQLException;
 
     List<QnaResponseDto> getAllQnasByLecture(Long lectureId,int pageNumber) throws SQLException;
     QnaResponseDto createAnswer(Long id,QnaRequestDto qnaRequestDto) throws SQLException;

backend/src/main/java/com/edufocus/edufocus/qna/service/QnaServiceImpl.java

@@ -80,8 +80,22 @@ qnaRepository.deleteById(id);
     }
 
     @Override
-    public Qna getQna(Long id) {
-        return null;
+    public QnaResponseDto getQna(Long id) {
+        Optional<Qna> qna;
+        try {
+
+            qna= qnaRepository.findById(id);
+
+
+        } catch (Exception e) {
+
+            throw new RuntimeException("Qna 없음 " + id, e);
+        }
+
+
+
+            return QnaResponseDto.toEntity(qna.get());
+
     }
 
     @Override