Fix: API 요청에 LocalDate 타입 오류 시 예외 처리

Author: gsandoo

src/main/java/com/ktb/assignment/exception/ErrorCode.java

@@ -12,6 +12,7 @@ public enum ErrorCode {
     MISSING_REQUEST_PARAMETER("40001", HttpStatus.BAD_REQUEST, "필수 파라미터가 누락되었습니다."),
     MISSING_REQUEST_BODY("40002", HttpStatus.BAD_REQUEST, "요청 바디가 누락되었습니다."),
     MISSING_API_KEY_PARAMETER("40003", HttpStatus.BAD_REQUEST, "API Key가 누락되었습니다."),
+    INVALID_DATE_FORMAT("40004", HttpStatus.BAD_REQUEST, "날짜 형식이 올바르지 않습니다. (yyyy-MM-dd) 형식을 사용하세요."),
 
     // 403 error
     ACCESS_DENIED_ERROR("40300", HttpStatus.FORBIDDEN, "API Key가 일치하지 않습니다."),

src/main/java/com/ktb/assignment/exception/GlobalExceptionHandler.java

@@ -7,9 +7,12 @@
 import org.springframework.web.HttpRequestMethodNotSupportedException;
 import org.springframework.web.bind.annotation.ExceptionHandler;
 import org.springframework.web.bind.annotation.RestControllerAdvice;
+import org.springframework.web.method.annotation.MethodArgumentTypeMismatchException;
 import org.springframework.web.multipart.support.MissingServletRequestPartException;
 import org.springframework.web.servlet.NoHandlerFoundException;
 
+import java.time.LocalDate;
+
 @Slf4j
 @RestControllerAdvice
 public class GlobalExceptionHandler {
@@ -47,6 +50,22 @@ public ResponseEntity<ResponseDto<?>> handleMessageNotReadableException(HttpMess
                 .body(ResponseDto.fail(exception));
     }
 
+    // API 요청 LocalDate 인자 타입이 틀린 경우 (400)
+    @ExceptionHandler(MethodArgumentTypeMismatchException.class)
+    public ResponseEntity<ResponseDto<?>> handleArgumentTypeMismatchException(MethodArgumentTypeMismatchException e) {
+        log.error("handleArgumentTypeMismatchException: {}", e.getMessage());
+
+        if (e.getRequiredType() != null && e.getRequiredType().equals(LocalDate.class)) {
+            return ResponseEntity
+                    .status(ErrorCode.INVALID_DATE_FORMAT.getHttpStatus())
+                    .body(ResponseDto.fail(new CommonException(ErrorCode.INVALID_DATE_FORMAT)));
+        }
+
+        return ResponseEntity
+                .status(ErrorCode.INVALID_PARAMETER.getHttpStatus())
+                .body(ResponseDto.fail(new CommonException(ErrorCode.INVALID_PARAMETER)));
+    }
+
     // 개발자가 직접 정의한 커스텀 예외
     @ExceptionHandler(CommonException.class)
     public ResponseEntity<ResponseDto<?>> handleApiException(CommonException e) {