添加点赞++功能

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

@@ -0,0 +1,8 @@
+package com.lovenav.service;
+
+import com.lovenav.entity.Comment;
+
+public interface CommentService {
+//    点赞
+    public int AddLikeCount(Comment comment);
+}

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

@@ -0,0 +1,17 @@
+package com.lovenav.service.serviceImpl;
+
+import com.lovenav.dao.CommentDao;
+import com.lovenav.entity.Comment;
+import com.lovenav.service.CommentService;
+import org.springframework.beans.factory.annotation.Autowired;
+
+public class CommentServiceImpl implements CommentService {
+
+    private CommentDao commentDao;
+
+    //    点赞++
+    public int AddLikeCount(Comment comment){
+        comment.setLikeCount(comment.getLikeCount()+1);
+        return commentDao.updateByPrimaryKeySelective(comment);
+    }
+}