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src/main/java/com/lovenav/service/serviceImpl/CommentServiceImpl.java

@@ -64,6 +64,7 @@ public class CommentServiceImpl implements CommentService {
     public String AddLikeCount(int id){
         Comment comment = commentDao.selectByPrimaryKey(id);
         comment.setLikeCount(comment.getLikeCount()+1);
+        commentDao.updateByPrimaryKeySelective(comment);
         HashMap<String, Long> hashMap = new HashMap<>();
         hashMap.put("点赞成功:",comment.getLikeCount());
         return JSON.toJSONString(hashMap);