[예외 처리 개선] GlobalExceptionHandler에 일반 예외 처리 메서드 추가 및 로그 기능 통합. CustomAuthenticationFailureHandler에서 불필요한 줄 제거. JwtTokenValidationFilter에서 JWT 검증 오류 시 로그 기록 추가.

src/main/java/com/bio/bio_backend/global/exception/CustomAuthenticationFailureHandler.java

@@ -45,6 +45,5 @@ public class CustomAuthenticationFailureHandler implements AuthenticationFailure
 
         String jsonResponse = objectMapper.writeValueAsString(apiResponse);
         response.getWriter().write(jsonResponse);
-
     }
 }

src/main/java/com/bio/bio_backend/global/exception/GlobalExceptionHandler.java

@@ -8,8 +8,10 @@ import com.bio.bio_backend.global.dto.ApiResponseDto;
 import com.bio.bio_backend.global.constants.ApiResponseCode;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
+import lombok.extern.slf4j.Slf4j;
 
 @RestControllerAdvice
+@Slf4j
 public class GlobalExceptionHandler {
 
     @ExceptionHandler(ApiException.class)
@@ -29,6 +31,14 @@ public class GlobalExceptionHandler {
         return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(response);
     }
 
+    @ExceptionHandler(Exception.class)
+    public ResponseEntity<ApiResponseDto<Void>> handleException(Exception e) {
+        log.error("Unexpected error occurred", e);
+        
+        ApiResponseDto<Void> response = ApiResponseDto.fail(ApiResponseCode.COMMON_INTERNAL_SERVER_ERROR);
+        return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(response);
+    }
+
     // 검증 오류 상세 정보를 위한 내부 클래스
     private record ValidationError(String field, String message) { }
 }

src/main/java/com/bio/bio_backend/global/security/JwtTokenValidationFilter.java

@@ -87,15 +87,12 @@ public class JwtTokenValidationFilter extends OncePerRequestFilter {
                 }
                 
                 filterChain.doFilter(request, response);
-                return;
             } else {
                 sendJsonResponse(response, ApiResponseDto.fail(ApiResponseCode.ALL_TOKEN_INVALID));
-                return;
             }
         } catch (Exception e) {
-            request.setAttribute("exception", e);
+            log.error("JWT 토큰 검증 중 오류 발생", e);
             sendJsonResponse(response, ApiResponseDto.fail(ApiResponseCode.COMMON_INTERNAL_SERVER_ERROR));
-            return;
         }
     }