fix 商品上架

zhongzheng-system/src/main/java/com/zhongzheng/modules/order/service/impl/OrderGoodsServiceImpl.java

@@ -140,7 +140,7 @@ public class OrderGoodsServiceImpl extends ServiceImpl<OrderGoodsMapper, OrderGo
                 //移除旧班级
                 ClassGradeUser classGradeUser =iClassGradeUserService.getOne(new LambdaQueryWrapper<ClassGradeUser>()
                         .eq(ClassGradeUser::getUserId,order.getUserId()).eq(ClassGradeUser::getGradeId,db.getGradeId()
-                        ).eq(ClassGradeUser::getStatus,1));
+                        ).eq(ClassGradeUser::getStatus,1).last("limit 1"));
                 if(classGradeUser==null){
                     throw new CustomException("原班级查无你的信息");
                 }