Feat: RefreshToken 삭제 추가

Author: thelightway24

src/main/java/com/likelion/ai_teacher_a/domain/user/controller/UserController.java

@@ -2,6 +2,7 @@
 
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
@@ -28,4 +29,10 @@ public ResponseEntity<Void> deleteCurrentUser(@LoginUserId Long loginId) {
 		return ResponseEntity.noContent().build();
 	}
 
+	@PostMapping("/logout")
+	public ResponseEntity<?> logout(@LoginUserId Long userId) {
+		userService.deleteRefreshToken(userId);
+		return ResponseEntity.ok().build();
+	}
+
 }

src/main/java/com/likelion/ai_teacher_a/domain/user/service/UserService.java

@@ -35,5 +35,13 @@ public void deleteUserById(Long id) {
 
 		userRepository.deleteById(user.getId());
 	}
+
+	@Transactional
+	public void deleteRefreshToken(Long userId) {
+		User user = userRepository.findById(userId)
+			.orElseThrow(() -> new CustomException(ErrorCode.USER_NOT_FOUND));
+		user.setRefreshToken(null);
+
+	}
 }