点赞++2

src/main/java/com/lovenav/service/CommentService.java

@@ -1,8 +1,10 @@
 package com.lovenav.service;
 
 import com.lovenav.entity.Comment;
+import org.springframework.stereotype.Service;
+
 
 public interface CommentService {
 //    点赞
-    public String AddLikeCount(Comment comment);
+    public String AddLikeCount(int id);
 }

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

@@ -4,18 +4,21 @@ import com.alibaba.fastjson2.JSONObject;
 import com.lovenav.dao.CommentDao;
 import com.lovenav.entity.Comment;
 import com.lovenav.service.CommentService;
+import org.mybatis.spring.annotation.MapperScan;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
-@Service
+@Service("commentService")
 public class CommentServiceImpl implements CommentService {
-
+    @Autowired
     private CommentDao commentDao;
 
     //    点赞++
-    public String AddLikeCount(Comment comment){
+    @Override
+    public String AddLikeCount(int id){
+        Comment comment = commentDao.selectByPrimaryKey(id);
         comment.setLikeCount(comment.getLikeCount()+1);
-        commentDao.updateByPrimaryKeySelective(comment);
-        return JSONObject.toJSONString(comment);
+        commentDao.updateByPrimaryKey(comment);
+        return JSONObject.toJSONString(comment.getLikeCount());
     }
 }