添加注释

src/main/resources/com/bao/dating/mapper/PostMapper.xml

@@ -3,7 +3,8 @@
         "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
 
 <mapper namespace="com.bao.dating.mapper.PostMapper">
-    <!--  动态添加  -->
+
+    <!--动态添加-->
     <insert id="insert" useGeneratedKeys="true" keyProperty="postId">
         INSERT INTO post
         (user_id, content,
@@ -26,10 +27,18 @@
         </if>
          #{isPublic}, 0, 0, #{createdAt}, #{updatedAt})
     </insert>
+
+    <!--动态删除-->
+    <delete id="deletePostById" parameterType="int">
+        DELETE FROM post WHERE post_id = #{postId}
+    </delete>
+
     <!--增加点赞数量-->
     <update id="increaseLikeCount">
         update dating.post set like_count = like_count + 1 where post.post_id = #{postId}
     </update>
+
+    <!--减少点赞数量-->
     <update id="decreaseLikeCount">
         update dating.post set like_count= like_count - 1 where post.post_id = #{postId}
     </update>
@@ -39,8 +48,4 @@
         select dating.post.like_count from dating.post where post.post_id = #{postId}
     </select>
 
-    <delete id="deletePostById" parameterType="int">
-        DELETE FROM post WHERE post_id = #{postId}
-    </delete>
-
 </mapper>