feat: handle validation exception

photo-service/src/main/java/kr/mafoo/photo/annotation/MatchEnum.java

@@ -14,7 +14,7 @@
 @Target({ElementType.METHOD, ElementType.FIELD, ElementType.PARAMETER})
 @Retention(RetentionPolicy.RUNTIME)
 public @interface MatchEnum {
-    String message() default "타입이 올바르지 않습니다";
+    String message() default "ENUM 타입이 올바르지 않습니다";
     Class<?>[] groups() default {};
     Class<? extends Payload>[] payload() default {};
     Class<? extends java.lang.Enum<?>> enumClass();

photo-service/src/main/java/kr/mafoo/photo/config/WebExceptionHandler.java

@@ -1,17 +1,45 @@
 package kr.mafoo.photo.config;
 
+import jakarta.validation.ConstraintViolationException;
 import kr.mafoo.photo.controller.dto.response.ErrorResponse;
 import kr.mafoo.photo.exception.DomainException;
+import kr.mafoo.photo.exception.ErrorCode;
 import org.springframework.http.ResponseEntity;
-import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.MethodArgumentNotValidException;
 import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+import org.springframework.web.bind.support.WebExchangeBindException;
 
-@ControllerAdvice
+@RestControllerAdvice
 public class WebExceptionHandler {
     @ExceptionHandler(DomainException.class)
     public ResponseEntity<ErrorResponse> handleDomainException(DomainException exception) {
         return ResponseEntity
                 .badRequest()
                 .body(ErrorResponse.fromErrorCode(exception.getErrorCode()));
     }
+
+    @ExceptionHandler({MethodArgumentNotValidException.class,
+            ConstraintViolationException.class,
+            WebExchangeBindException.class})
+    public ResponseEntity<ErrorResponse> validException(Exception ex) {
+        String errorMessage = "입력값 검증 오류: ";
+        if (ex instanceof MethodArgumentNotValidException mex) {
+            errorMessage += mex.getBindingResult().getAllErrors().get(0).getDefaultMessage();
+        } else if (ex instanceof ConstraintViolationException cvex) {
+            errorMessage += cvex.getConstraintViolations().iterator().next().getMessage();
+        } else if (ex instanceof WebExchangeBindException wex) {
+            errorMessage += wex.getAllErrors().get(0).getDefaultMessage();
+        } else {
+            errorMessage += "알 수 없는 오류";
+        }
+        ErrorResponse response = new ErrorResponse(
+                ErrorCode.REQUEST_INPUT_NOT_VALID.getCode(),
+                errorMessage
+        );
+
+        return ResponseEntity
+                .badRequest()
+                .body(response);
+    }
 }

photo-service/src/main/java/kr/mafoo/photo/exception/ErrorCode.java

@@ -7,7 +7,8 @@
 @RequiredArgsConstructor
 public enum ErrorCode {
 
-    REDIRECT_URI_NOT_FOUND("EX001", "리다이렉트 URI를 찾을 수 없습니다"),
+    REDIRECT_URI_NOT_FOUND("EX0001", "리다이렉트 URI를 찾을 수 없습니다"),
+    REQUEST_INPUT_NOT_VALID("EX0002", "입력 값이 올바르지 않습니다."),
 
     ALBUM_NOT_FOUND("AE0001", "앨범을 찾을 수 없습니다"),
     PHOTO_NOT_FOUND("PE0001", "사진을 찾을 수 없습니다"),