上传代码

novel-front/src/main/resources/mybatis/mapping/BookCommentMapper.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+
+<mapper namespace="com.java2nb.novel.mapper.FrontBookCommentMapper">
+
+    <select id="listCommentByPage"  resultType="com.java2nb.novel.vo.BookCommentVO">
+        select t1.id,t1.book_id,t1.comment_content,t1.reply_count,t1.create_time,t2.username create_user_name,t2.user_photo create_user_photo
+        from book_comment t1 inner join user t2 on t1.create_user_id = t2.id
+        <trim>
+            <if test="bookId != null">
+                and t1.book_id = #{bookId}
+            </if>
+            <if test="userId != null">
+                and t1.create_user_id = #{userId}
+            </if>
+        </trim>
+
+
+    </select>
+
+
+
+</mapper>