1

ruoyi-system/src/main/java/com/ruoyi/jarvis/domain/dto/CommentStatistics.java

@@ -1,6 +1,7 @@
 package com.ruoyi.jarvis.domain.dto;
 
 import lombok.Data;
+import java.util.Date;
 
 /**
  * 评论统计信息
@@ -30,5 +31,8 @@ public class CommentStatistics {
 
     /** 今日调用次数 */
     private Long todayCallCount;
+
+    /** 最后一条评论的创建时间（作为更新日期） */
+    private Date lastCommentUpdateTime;
 }
 

ruoyi-system/src/main/java/com/ruoyi/jarvis/service/impl/CommentServiceImpl.java

@@ -134,6 +134,15 @@ public class CommentServiceImpl implements ICommentService {
                 stats.setTotalCount(((Number) statMap.get("totalCount")).longValue());
                 stats.setAvailableCount(((Number) statMap.get("availableCount")).longValue());
                 stats.setUsedCount(((Number) statMap.get("usedCount")).longValue());
+                // 设置最后一条评论的创建时间
+                Object lastUpdateTime = statMap.get("lastCommentUpdateTime");
+                if (lastUpdateTime != null) {
+                    if (lastUpdateTime instanceof Date) {
+                        stats.setLastCommentUpdateTime((Date) lastUpdateTime);
+                    } else if (lastUpdateTime instanceof java.sql.Timestamp) {
+                        stats.setLastCommentUpdateTime(new Date(((java.sql.Timestamp) lastUpdateTime).getTime()));
+                    }
+                }
             }
 
             // 获取接口调用统计

ruoyi-system/src/main/resources/mapper/jarvis/CommentMapper.xml

@@ -46,7 +46,8 @@
         select 
             count(*) as totalCount,
             sum(case when is_use = 0 then 1 else 0 end) as availableCount,
-            sum(case when is_use = 1 then 1 else 0 end) as usedCount
+            sum(case when is_use = 1 then 1 else 0 end) as usedCount,
+            (select max(created_at) from comments where product_id = #{productId}) as lastCommentUpdateTime
         from comments
         where product_id = #{productId}
     </select>

ruoyi-system/src/main/resources/mapper/jarvis/TaobaoCommentMapper.xml

@@ -46,7 +46,8 @@
         select 
             count(*) as totalCount,
             sum(case when is_use = 0 then 1 else 0 end) as availableCount,
-            sum(case when is_use = 1 then 1 else 0 end) as usedCount
+            sum(case when is_use = 1 then 1 else 0 end) as usedCount,
+            (select max(created_at) from taobao_comments where product_id = #{productId}) as lastCommentUpdateTime
         from taobao_comments
         where product_id = #{productId}
     </select>