diff --git a/src/main/java/com/example/demo/Mysql/MysqlServiceImpl.java b/src/main/java/com/example/demo/Mysql/MysqlServiceImpl.java
index 4caf9ee..25ddd75 100644
--- a/src/main/java/com/example/demo/Mysql/MysqlServiceImpl.java
+++ b/src/main/java/com/example/demo/Mysql/MysqlServiceImpl.java
@@ -313,7 +313,10 @@ public class MysqlServiceImpl implements MysqlService {
         data.operation_platform = rs.getString("operation_platform");
         data.goods_name = rs.getString("goods_name");
         data.uid = rs.getString("id");
-        data.linkId = rs.getString("uid");
+        // 👇👇👇 新增：去掉 linkId 首尾空格 👇👇👇
+        String rawLinkId = rs.getString("uid");
+        data.linkId = (rawLinkId != null) ? rawLinkId.trim() : null;
+        // 👆👆👆 新增结束 👆👆👆
 
         // 预生成订单号（避免在循环中重复生成）
         String timestampPart = LocalDateTime.now().format(DateTimeFormatter.ofPattern("yyyyMMddHHmmssSSS"));