diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/wm/materialstock/vo/MesWmMaterialStockPageReqVO.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/wm/materialstock/vo/MesWmMaterialStockPageReqVO.java
index 5d4a900..fb3253c 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/wm/materialstock/vo/MesWmMaterialStockPageReqVO.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/controller/admin/wm/materialstock/vo/MesWmMaterialStockPageReqVO.java
@@ -15,11 +15,8 @@ public class MesWmMaterialStockPageReqVO extends PageParam {
     @Schema(description = "物料分类编号", example = "1")
     private Long itemTypeId;
 
-    @Schema(description = "物料编码", example = "M001")
-    private String itemCode;
-
-    @Schema(description = "物料名称", example = "钢板")
-    private String itemName;
+    @Schema(description = "物料编号", example = "1")
+    private Long itemId;
 
     @Schema(description = "批次号", example = "B20260101")
     private String batchCode;
diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/md/workstation/MesMdWorkstationService.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/md/workstation/MesMdWorkstationService.java
index c036602..473c056 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/md/workstation/MesMdWorkstationService.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/md/workstation/MesMdWorkstationService.java
@@ -61,4 +61,28 @@ public interface MesMdWorkstationService {
      */
     List<MesMdWorkstationDO> getWorkstationListByStatus(Integer status);
 
+    /**
+     * 获得指定仓库下的工作站数量
+     *
+     * @param warehouseId 仓库编号
+     * @return 工作站数量
+     */
+    Long getWorkstationCountByWarehouseId(Long warehouseId);
+
+    /**
+     * 获得指定库区下的工作站数量
+     *
+     * @param locationId 库区编号
+     * @return 工作站数量
+     */
+    Long getWorkstationCountByLocationId(Long locationId);
+
+    /**
+     * 获得指定库位下的工作站数量
+     *
+     * @param areaId 库位编号
+     * @return 工作站数量
+     */
+    Long getWorkstationCountByAreaId(Long areaId);
+
 }
diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/md/workstation/MesMdWorkstationServiceImpl.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/md/workstation/MesMdWorkstationServiceImpl.java
index 15960df..55a900b 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/md/workstation/MesMdWorkstationServiceImpl.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/md/workstation/MesMdWorkstationServiceImpl.java
@@ -212,4 +212,19 @@ public class MesMdWorkstationServiceImpl implements MesMdWorkstationService {
         return workstationMapper.selectListByStatus(status);
     }
 
+    @Override
+    public Long getWorkstationCountByWarehouseId(Long warehouseId) {
+        return workstationMapper.selectCountByWarehouseId(warehouseId);
+    }
+
+    @Override
+    public Long getWorkstationCountByLocationId(Long locationId) {
+        return workstationMapper.selectCountByLocationId(locationId);
+    }
+
+    @Override
+    public Long getWorkstationCountByAreaId(Long areaId) {
+        return workstationMapper.selectCountByAreaId(areaId);
+    }
+
 }
diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/materialstock/MesWmMaterialStockServiceImpl.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/materialstock/MesWmMaterialStockServiceImpl.java
index 7c34c22..38742cb 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/materialstock/MesWmMaterialStockServiceImpl.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/materialstock/MesWmMaterialStockServiceImpl.java
@@ -1,17 +1,14 @@
 package cn.iocoder.yudao.module.mes.service.wm.materialstock;
 
 import cn.hutool.core.collection.CollUtil;
-import cn.hutool.core.util.StrUtil;
 import cn.iocoder.yudao.framework.common.pojo.PageResult;
+import cn.iocoder.yudao.framework.common.util.collection.SetUtils;
 import cn.iocoder.yudao.module.mes.controller.admin.wm.materialstock.vo.MesWmMaterialStockPageReqVO;
 import cn.iocoder.yudao.module.mes.controller.admin.wm.materialstock.vo.MesWmMaterialStockSaveReqVO;
-import cn.iocoder.yudao.module.mes.dal.dataobject.md.item.MesMdItemDO;
 import cn.iocoder.yudao.module.mes.dal.dataobject.md.item.MesMdItemTypeDO;
 import cn.iocoder.yudao.module.mes.dal.dataobject.wm.materialstock.MesWmMaterialStockDO;
-import cn.iocoder.yudao.module.mes.dal.mysql.md.item.MesMdItemMapper;
 import cn.iocoder.yudao.module.mes.dal.mysql.wm.materialstock.MesWmMaterialStockMapper;
 import cn.iocoder.yudao.module.mes.service.md.item.MesMdItemTypeService;
-import cn.iocoder.yudao.framework.mybatis.core.query.LambdaQueryWrapperX;
 import jakarta.annotation.Resource;
 import org.springframework.stereotype.Service;
 import org.springframework.validation.annotation.Validated;
@@ -35,9 +32,6 @@ public class MesWmMaterialStockServiceImpl implements MesWmMaterialStockService 
     @Resource
     private MesMdItemTypeService itemTypeService;
 
-    @Resource
-    private MesMdItemMapper itemMapper;
-
     @Override
     public MesWmMaterialStockDO getMaterialStock(Long id) {
         return materialStockMapper.selectById(id);
@@ -54,7 +48,7 @@ public class MesWmMaterialStockServiceImpl implements MesWmMaterialStockService 
 
     @Override
     public PageResult<MesWmMaterialStockDO> getMaterialStockPage(MesWmMaterialStockPageReqVO pageReqVO) {
-        // 1. 解析 itemTypeId：包含子分类
+        // 1.1 解析 itemTypeId：包含子分类
         Set<Long> itemTypeIds = null;
         if (pageReqVO.getItemTypeId() != null) {
             itemTypeIds = new HashSet<>();
@@ -62,20 +56,13 @@ public class MesWmMaterialStockServiceImpl implements MesWmMaterialStockService 
             List<MesMdItemTypeDO> children = itemTypeService.getItemTypeChildrenList(pageReqVO.getItemTypeId());
             itemTypeIds.addAll(convertSet(children, MesMdItemTypeDO::getId));
         }
-
-        // 2. 解析 itemCode/itemName：查 md_item 找匹配的 itemId 集合
+        // 1.2 解析 itemId
         Set<Long> itemIds = null;
-        if (StrUtil.isNotBlank(pageReqVO.getItemCode()) || StrUtil.isNotBlank(pageReqVO.getItemName())) {
-            List<MesMdItemDO> matchingItems = itemMapper.selectList(new LambdaQueryWrapperX<MesMdItemDO>()
-                    .eqIfPresent(MesMdItemDO::getCode, pageReqVO.getItemCode())
-                    .likeIfPresent(MesMdItemDO::getName, pageReqVO.getItemName()));
-            if (matchingItems.isEmpty()) {
-                return PageResult.empty();
-            }
-            itemIds = convertSet(matchingItems, MesMdItemDO::getId);
+        if (pageReqVO.getItemId() != null) {
+            itemIds = SetUtils.asSet(pageReqVO.getItemId());
         }
 
-        // 3. 分页查询
+        // 2. 分页查询
         return materialStockMapper.selectPage(pageReqVO, itemTypeIds, itemIds);
     }
 
diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/warehouse/MesWmWarehouseAreaService.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/warehouse/MesWmWarehouseAreaService.java
index 5b9df6c..b43154c 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/warehouse/MesWmWarehouseAreaService.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/warehouse/MesWmWarehouseAreaService.java
@@ -83,4 +83,12 @@ public interface MesWmWarehouseAreaService {
         return convertMap(getWarehouseAreaList(ids), MesWmWarehouseAreaDO::getId);
     }
 
+    /**
+     * 获得指定库区下的库位数量
+     *
+     * @param locationId 库区编号
+     * @return 库位数量
+     */
+    Long getWarehouseAreaCountByLocationId(Long locationId);
+
 }
diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/warehouse/MesWmWarehouseAreaServiceImpl.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/warehouse/MesWmWarehouseAreaServiceImpl.java
index 286b267..2cd1120 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/warehouse/MesWmWarehouseAreaServiceImpl.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/warehouse/MesWmWarehouseAreaServiceImpl.java
@@ -7,9 +7,9 @@ import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
 import cn.iocoder.yudao.module.mes.controller.admin.wm.warehouse.vo.area.MesWmWarehouseAreaPageReqVO;
 import cn.iocoder.yudao.module.mes.controller.admin.wm.warehouse.vo.area.MesWmWarehouseAreaSaveReqVO;
 import cn.iocoder.yudao.module.mes.dal.dataobject.wm.warehouse.MesWmWarehouseAreaDO;
-import cn.iocoder.yudao.module.mes.dal.mysql.md.workstation.MesMdWorkstationMapper;
-import cn.iocoder.yudao.module.mes.dal.mysql.wm.materialstock.MesWmMaterialStockMapper;
 import cn.iocoder.yudao.module.mes.dal.mysql.wm.warehouse.MesWmWarehouseAreaMapper;
+import cn.iocoder.yudao.module.mes.service.md.workstation.MesMdWorkstationService;
+import cn.iocoder.yudao.module.mes.service.wm.materialstock.MesWmMaterialStockService;
 import jakarta.annotation.Resource;
 import org.springframework.stereotype.Service;
 import org.springframework.validation.annotation.Validated;
@@ -21,7 +21,6 @@ import java.util.List;
 import static cn.iocoder.yudao.framework.common.exception.util.ServiceExceptionUtil.exception;
 import static cn.iocoder.yudao.module.mes.enums.ErrorCodeConstants.*;
 
-// TODO @AI：不应该直接跨模块调用 mapper，通过他们的 service 操作
 /**
  * MES 库位 Service 实现类
  */
@@ -33,11 +32,9 @@ public class MesWmWarehouseAreaServiceImpl implements MesWmWarehouseAreaService 
     private MesWmWarehouseAreaMapper areaMapper;
 
     @Resource
-    private MesMdWorkstationMapper workstationMapper;
-
+    private MesMdWorkstationService workstationService;
     @Resource
-    private MesWmMaterialStockMapper materialStockMapper;
-
+    private MesWmMaterialStockService materialStockService;
     @Resource
     private MesWmWarehouseLocationService locationService;
 
@@ -75,11 +72,11 @@ public class MesWmWarehouseAreaServiceImpl implements MesWmWarehouseAreaService 
         // 校验存在
         validateWarehouseAreaExists(id);
         // 校验是否被工作站引用
-        if (workstationMapper.selectCountByAreaId(id) > 0) {
+        if (workstationService.getWorkstationCountByAreaId(id) > 0) {
             throw exception(WM_WAREHOUSE_AREA_HAS_WORKSTATION);
         }
         // 校验是否有库存记录
-        if (materialStockMapper.selectCountByAreaId(id) > 0) {
+        if (materialStockService.getMaterialStockCountByAreaId(id) > 0) {
             throw exception(WM_WAREHOUSE_AREA_HAS_MATERIAL_STOCK);
         }
 
@@ -138,4 +135,9 @@ public class MesWmWarehouseAreaServiceImpl implements MesWmWarehouseAreaService 
         return areaMapper.selectListByIds(ids);
     }
 
+    @Override
+    public Long getWarehouseAreaCountByLocationId(Long locationId) {
+        return areaMapper.selectCountByLocationId(locationId);
+    }
+
 }
diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/warehouse/MesWmWarehouseLocationService.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/warehouse/MesWmWarehouseLocationService.java
index 021ba24..fc8d85f 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/warehouse/MesWmWarehouseLocationService.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/warehouse/MesWmWarehouseLocationService.java
@@ -83,4 +83,12 @@ public interface MesWmWarehouseLocationService {
         return convertMap(getWarehouseLocationList(ids), MesWmWarehouseLocationDO::getId);
     }
 
+    /**
+     * 获得指定仓库下的库区数量
+     *
+     * @param warehouseId 仓库编号
+     * @return 库区数量
+     */
+    Long getWarehouseLocationCountByWarehouseId(Long warehouseId);
+
 }
diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/warehouse/MesWmWarehouseLocationServiceImpl.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/warehouse/MesWmWarehouseLocationServiceImpl.java
index 26820a6..c4e1241 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/warehouse/MesWmWarehouseLocationServiceImpl.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/warehouse/MesWmWarehouseLocationServiceImpl.java
@@ -7,10 +7,9 @@ import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
 import cn.iocoder.yudao.module.mes.controller.admin.wm.warehouse.vo.location.MesWmWarehouseLocationPageReqVO;
 import cn.iocoder.yudao.module.mes.controller.admin.wm.warehouse.vo.location.MesWmWarehouseLocationSaveReqVO;
 import cn.iocoder.yudao.module.mes.dal.dataobject.wm.warehouse.MesWmWarehouseLocationDO;
-import cn.iocoder.yudao.module.mes.dal.mysql.md.workstation.MesMdWorkstationMapper;
-import cn.iocoder.yudao.module.mes.dal.mysql.wm.materialstock.MesWmMaterialStockMapper;
-import cn.iocoder.yudao.module.mes.dal.mysql.wm.warehouse.MesWmWarehouseAreaMapper;
 import cn.iocoder.yudao.module.mes.dal.mysql.wm.warehouse.MesWmWarehouseLocationMapper;
+import cn.iocoder.yudao.module.mes.service.md.workstation.MesMdWorkstationService;
+import cn.iocoder.yudao.module.mes.service.wm.materialstock.MesWmMaterialStockService;
 import jakarta.annotation.Resource;
 import org.springframework.stereotype.Service;
 import org.springframework.validation.annotation.Validated;
@@ -22,7 +21,6 @@ import java.util.List;
 import static cn.iocoder.yudao.framework.common.exception.util.ServiceExceptionUtil.exception;
 import static cn.iocoder.yudao.module.mes.enums.ErrorCodeConstants.*;
 
-// TODO @AI：不应该直接跨模块调用 mapper，通过他们的 service 操作
 /**
  * MES 库区 Service 实现类
  */
@@ -34,14 +32,11 @@ public class MesWmWarehouseLocationServiceImpl implements MesWmWarehouseLocation
     private MesWmWarehouseLocationMapper locationMapper;
 
     @Resource
-    private MesWmWarehouseAreaMapper areaMapper;
-
+    private MesWmWarehouseAreaService areaService;
     @Resource
-    private MesMdWorkstationMapper workstationMapper;
-
+    private MesMdWorkstationService workstationService;
     @Resource
-    private MesWmMaterialStockMapper materialStockMapper;
-
+    private MesWmMaterialStockService materialStockService;
     @Resource
     private MesWmWarehouseService warehouseService;
 
@@ -79,15 +74,15 @@ public class MesWmWarehouseLocationServiceImpl implements MesWmWarehouseLocation
         // 校验存在
         validateWarehouseLocationExists(id);
         // 校验是否有库位
-        if (areaMapper.selectCountByLocationId(id) > 0) {
+        if (areaService.getWarehouseAreaCountByLocationId(id) > 0) {
             throw exception(WM_WAREHOUSE_LOCATION_HAS_AREA);
         }
         // 校验是否被工作站引用
-        if (workstationMapper.selectCountByLocationId(id) > 0) {
+        if (workstationService.getWorkstationCountByLocationId(id) > 0) {
             throw exception(WM_WAREHOUSE_LOCATION_HAS_WORKSTATION);
         }
         // 校验是否有库存记录
-        if (materialStockMapper.selectCountByLocationId(id) > 0) {
+        if (materialStockService.getMaterialStockCountByLocationId(id) > 0) {
             throw exception(WM_WAREHOUSE_LOCATION_HAS_MATERIAL_STOCK);
         }
 
@@ -146,4 +141,9 @@ public class MesWmWarehouseLocationServiceImpl implements MesWmWarehouseLocation
         return locationMapper.selectListByIds(ids);
     }
 
+    @Override
+    public Long getWarehouseLocationCountByWarehouseId(Long warehouseId) {
+        return locationMapper.selectCountByWarehouseId(warehouseId);
+    }
+
 }
diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/warehouse/MesWmWarehouseServiceImpl.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/warehouse/MesWmWarehouseServiceImpl.java
index 2c11a93..b2e33cd 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/warehouse/MesWmWarehouseServiceImpl.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/wm/warehouse/MesWmWarehouseServiceImpl.java
@@ -7,10 +7,9 @@ import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
 import cn.iocoder.yudao.module.mes.controller.admin.wm.warehouse.vo.MesWmWarehousePageReqVO;
 import cn.iocoder.yudao.module.mes.controller.admin.wm.warehouse.vo.MesWmWarehouseSaveReqVO;
 import cn.iocoder.yudao.module.mes.dal.dataobject.wm.warehouse.MesWmWarehouseDO;
-import cn.iocoder.yudao.module.mes.dal.mysql.md.workstation.MesMdWorkstationMapper;
-import cn.iocoder.yudao.module.mes.dal.mysql.wm.materialstock.MesWmMaterialStockMapper;
-import cn.iocoder.yudao.module.mes.dal.mysql.wm.warehouse.MesWmWarehouseLocationMapper;
 import cn.iocoder.yudao.module.mes.dal.mysql.wm.warehouse.MesWmWarehouseMapper;
+import cn.iocoder.yudao.module.mes.service.md.workstation.MesMdWorkstationService;
+import cn.iocoder.yudao.module.mes.service.wm.materialstock.MesWmMaterialStockService;
 import jakarta.annotation.Resource;
 import org.springframework.stereotype.Service;
 import org.springframework.validation.annotation.Validated;
@@ -22,7 +21,6 @@ import java.util.List;
 import static cn.iocoder.yudao.framework.common.exception.util.ServiceExceptionUtil.exception;
 import static cn.iocoder.yudao.module.mes.enums.ErrorCodeConstants.*;
 
-// TODO @AI：不应该直接跨模块调用 mapper，通过他们的 service 操作
 /**
  * MES 仓库 Service 实现类
  */
@@ -34,13 +32,11 @@ public class MesWmWarehouseServiceImpl implements MesWmWarehouseService {
     private MesWmWarehouseMapper warehouseMapper;
 
     @Resource
-    private MesWmWarehouseLocationMapper locationMapper;
-
+    private MesWmWarehouseLocationService locationService;
     @Resource
-    private MesMdWorkstationMapper workstationMapper;
-
+    private MesMdWorkstationService workstationService;
     @Resource
-    private MesWmMaterialStockMapper materialStockMapper;
+    private MesWmMaterialStockService materialStockService;
 
     @Override
     public Long createWarehouse(MesWmWarehouseSaveReqVO createReqVO) {
@@ -74,15 +70,15 @@ public class MesWmWarehouseServiceImpl implements MesWmWarehouseService {
         // 校验存在
         validateWarehouseExists(id);
         // 校验是否有库区
-        if (locationMapper.selectCountByWarehouseId(id) > 0) {
+        if (locationService.getWarehouseLocationCountByWarehouseId(id) > 0) {
             throw exception(WM_WAREHOUSE_HAS_LOCATION);
         }
         // 校验是否被工作站引用
-        if (workstationMapper.selectCountByWarehouseId(id) > 0) {
+        if (workstationService.getWorkstationCountByWarehouseId(id) > 0) {
             throw exception(WM_WAREHOUSE_HAS_WORKSTATION);
         }
         // 校验是否有库存记录
-        if (materialStockMapper.selectCountByWarehouseId(id) > 0) {
+        if (materialStockService.getMaterialStockCountByWarehouseId(id) > 0) {
             throw exception(WM_WAREHOUSE_HAS_MATERIAL_STOCK);
         }