commemt fix

Change-Id: I43d07c00de12649e25a4d925c59f3544b8d0b29d
diff --git a/src/main/java/com/example/g8backend/dto/CommentDTO.java b/src/main/java/com/example/g8backend/dto/CommentDTO.java
index d36e748..4405bae 100644
--- a/src/main/java/com/example/g8backend/dto/CommentDTO.java
+++ b/src/main/java/com/example/g8backend/dto/CommentDTO.java
@@ -1,12 +1,11 @@
 package com.example.g8backend.dto;
 
-import java.util.List;
+import lombok.Data;
 
+@Data
 public class CommentDTO {
-    private Long commentId;
-    private Long userId;
-    private String content;
-    private List<CommentDTO> replies;
-
-    // Getter and Setter
-}
+    private Long postId;        // 新增:所属帖子ID
+    private Long userId;        // 保留:用户ID
+    private String content;     // 保留:评论内容
+    private Long parentCommentId; // 新增:父评论ID(可选)
+}
\ No newline at end of file