diff --git a/ruoyi-sip/src/main/java/com/ruoyi/sip/mapper/ProductInfoMapper.java b/ruoyi-sip/src/main/java/com/ruoyi/sip/mapper/ProductInfoMapper.java
index 63d085e7..6be1c80c 100644
--- a/ruoyi-sip/src/main/java/com/ruoyi/sip/mapper/ProductInfoMapper.java
+++ b/ruoyi-sip/src/main/java/com/ruoyi/sip/mapper/ProductInfoMapper.java
@@ -66,6 +66,6 @@ public interface ProductInfoMapper
 
     List<ProductInfo> listByProductCodeList(@Param("list") List<String> productCodeList);
 
-    ProductInfo query(MaintenanceRecordsDto dto);
+    List<ProductInfo> query(MaintenanceRecordsDto dto);
 
 }
diff --git a/ruoyi-sip/src/main/java/com/ruoyi/sip/service/IProductInfoService.java b/ruoyi-sip/src/main/java/com/ruoyi/sip/service/IProductInfoService.java
index c117478a..65b8a08d 100644
--- a/ruoyi-sip/src/main/java/com/ruoyi/sip/service/IProductInfoService.java
+++ b/ruoyi-sip/src/main/java/com/ruoyi/sip/service/IProductInfoService.java
@@ -62,5 +62,5 @@ public interface IProductInfoService
      */
     public int deleteProductInfoById(Long id);
 
-    ProductInfo query(MaintenanceRecordsDto dto);
+    List<ProductInfo> query(MaintenanceRecordsDto dto);
 }
diff --git a/ruoyi-sip/src/main/java/com/ruoyi/sip/service/impl/OrderInfoServiceImpl.java b/ruoyi-sip/src/main/java/com/ruoyi/sip/service/impl/OrderInfoServiceImpl.java
index e2906ead..2dcb5c56 100644
--- a/ruoyi-sip/src/main/java/com/ruoyi/sip/service/impl/OrderInfoServiceImpl.java
+++ b/ruoyi-sip/src/main/java/com/ruoyi/sip/service/impl/OrderInfoServiceImpl.java
@@ -134,6 +134,9 @@ public class OrderInfoServiceImpl implements IOrderInfoService
 
     @Override
     public List<OrderInfo> selectOrderInfoByMaintenance(MaintenanceRecordsDto dto) {
+        if (StringUtils.isEmpty(dto.getSerialNumber()) && StringUtils.isEmpty(dto.getProductCode())){
+            dto.setSerialNumber("-23232$$$$32");
+        }
         return orderInfoMapper.selectOrderInfoByMaintenance(dto);
     }
 
diff --git a/ruoyi-sip/src/main/java/com/ruoyi/sip/service/impl/ProductInfoServiceImpl.java b/ruoyi-sip/src/main/java/com/ruoyi/sip/service/impl/ProductInfoServiceImpl.java
index 76b31c87..5bfbda85 100644
--- a/ruoyi-sip/src/main/java/com/ruoyi/sip/service/impl/ProductInfoServiceImpl.java
+++ b/ruoyi-sip/src/main/java/com/ruoyi/sip/service/impl/ProductInfoServiceImpl.java
@@ -2,6 +2,7 @@ package com.ruoyi.sip.service.impl;
 
 import java.util.List;
 
+import com.ruoyi.common.utils.StringUtils;
 import com.ruoyi.sip.domain.MaintenanceRecordsDto;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
@@ -95,7 +96,10 @@ public class ProductInfoServiceImpl implements IProductInfoService
     }
 
     @Override
-    public ProductInfo query(MaintenanceRecordsDto dto) {
+    public List<ProductInfo> query(MaintenanceRecordsDto dto) {
+        if (StringUtils.isEmpty(dto.getSerialNumber()) && StringUtils.isEmpty(dto.getProductCode())){
+            dto.setSerialNumber("-23232$$$$32");
+        }
         return productInfoMapper.query(dto);
     }
 }