diff --git a/src/main/java/com/mini/mybigscreen/biz/domain/ItemInfo.java b/src/main/java/com/mini/mybigscreen/biz/domain/ItemInfo.java
index aed262b..b4d70eb 100644
--- a/src/main/java/com/mini/mybigscreen/biz/domain/ItemInfo.java
+++ b/src/main/java/com/mini/mybigscreen/biz/domain/ItemInfo.java
@@ -4,9 +4,13 @@ import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableField;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
+
+import java.io.Serial;
 import java.io.Serializable;
 import java.math.BigDecimal;
 import java.time.LocalDateTime;
+
+import com.mini.mybigscreen.Model.BaseEntity;
 import lombok.Getter;
 import lombok.Setter;
 
@@ -21,8 +25,9 @@ import lombok.Setter;
 @Getter
 @Setter
 @TableName("biz_item_info")
-public class ItemInfo implements Serializable {
+public class ItemInfo extends BaseEntity implements Serializable {
 
+    @Serial
     private static final long serialVersionUID = 1L;
 
     /**
diff --git a/src/main/java/com/mini/mybigscreen/biz/mapper/ItemInfoMapper.java b/src/main/java/com/mini/mybigscreen/biz/mapper/ItemInfoMapper.java
index 87d9595..35c015d 100644
--- a/src/main/java/com/mini/mybigscreen/biz/mapper/ItemInfoMapper.java
+++ b/src/main/java/com/mini/mybigscreen/biz/mapper/ItemInfoMapper.java
@@ -1,7 +1,7 @@
 package com.mini.mybigscreen.biz.mapper;
 
+import com.github.yulichang.base.MPJBaseMapper;
 import com.mini.mybigscreen.biz.domain.ItemInfo;
-import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 
 /**
  * <p>
@@ -11,6 +11,6 @@ import com.baomidou.mybatisplus.core.mapper.BaseMapper;
  * @author gaoxq
  * @since 2026-03-12
  */
-public interface ItemInfoMapper extends BaseMapper<ItemInfo> {
+public interface ItemInfoMapper extends MPJBaseMapper<ItemInfo> {
 
 }
diff --git a/src/main/resources/mapper/ItemInfoMapper.xml b/src/main/resources/mapper/ItemInfoMapper.xml
index fb0a852..e1f2ec8 100644
--- a/src/main/resources/mapper/ItemInfoMapper.xml
+++ b/src/main/resources/mapper/ItemInfoMapper.xml
@@ -31,11 +31,15 @@
         <result column="index_15" property="index15" />
         <result column="update_time" property="updateTime" />
         <result column="is_deleted" property="isDeleted" />
+        <result column="index_sum" property="indexSum" />
+        <result column="index_avg" property="indexAvg" />
+        <result column="index_max" property="indexMax" />
+        <result column="index_min" property="indexMin" />
     </resultMap>
 
     <!-- 通用查询结果列 -->
     <sql id="Base_Column_List">
-        create_time, id, item_name, item_code, title, seq, ym, cycle, req_param, x_axis, index_01, index_02, index_03, index_04, index_05, index_06, index_07, index_08, index_09, index_10, index_11, index_12, index_13, index_14, index_15, update_time, is_deleted
+        create_time, id, item_name, item_code, title, seq, ym, cycle, req_param, x_axis, index_01, index_02, index_03, index_04, index_05, index_06, index_07, index_08, index_09, index_10, index_11, index_12, index_13, index_14, index_15, update_time, is_deleted, index_sum, index_avg, index_max, index_min
     </sql>
 
 </mapper>