fix: 쿼리파라미터 NotBlank 검증 추가

Author: jinwon1234

src/main/java/apptive/team5/global/GlobalExceptionHandler.java

@@ -1,6 +1,7 @@
 package apptive.team5.global;
 
 import apptive.team5.global.exception.*;
+import jakarta.validation.ConstraintViolationException;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.security.access.AccessDeniedException;
@@ -46,6 +47,13 @@ public ResponseEntity<Map<String,String>> handleMissingServletRequestParameterEx
         return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(Map.of("message", e.getParameterName() + "는 필수값입니다."));
     }
 
+    @ExceptionHandler(ConstraintViolationException.class)
+    public ResponseEntity<Map<String,String>> handleConstraintViolationException(ConstraintViolationException e) {
+
+        return ResponseEntity.status(HttpStatus.BAD_REQUEST).body(Map.of("message", e.getMessage()));
+    }
+
+
     @ExceptionHandler(KakaoApiConnectException.class)
     public ResponseEntity<Map<String,Object>> handleKakaoApiConnectException(KakaoApiConnectException e) {
         return ResponseEntity.status(e.getHttpStatus()).body(Map.of("message", e.getMessage(), "details", e.getKakaoApiExceptionResponse()));

src/main/java/apptive/team5/youtube/controller/YoutubeApiController.java

@@ -3,9 +3,12 @@
 import apptive.team5.youtube.dto.YoutubeSearchRequest;
 import apptive.team5.youtube.dto.YoutubeVideoResponse;
 import apptive.team5.youtube.service.YoutubeService;
+import jakarta.validation.Valid;
+import jakarta.validation.constraints.NotBlank;
 import lombok.RequiredArgsConstructor;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
+import org.springframework.validation.annotation.Validated;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RequestParam;
@@ -16,13 +19,14 @@
 @RestController
 @RequestMapping("/api/youtube")
 @RequiredArgsConstructor
+@Validated
 public class YoutubeApiController {
 
     private final YoutubeService youtubeService;
 
     @GetMapping
-    public ResponseEntity<List<YoutubeVideoResponse>> searchVideo(@RequestParam String id, @RequestParam String artist,
-                                                                  @RequestParam String title) {
+    public ResponseEntity<List<YoutubeVideoResponse>> searchVideo(@NotBlank  @RequestParam String id, @NotBlank @RequestParam String artist,
+                                                                  @NotBlank @RequestParam String title) {
 
         List<YoutubeVideoResponse> response = youtubeService.searchVideo(new YoutubeSearchRequest(id, artist, title));