feat(wms): 添加钢卷物料统计数据接口

- 在 IWmsMaterialCoilService 中新增 getStatistics 方法用于汇总统计
- 在 WmsMaterialCoilController 中添加 /statisticsList 接口
- 在 WmsMaterialCoilMapper 中新增 selectStatistics 查询方法
- 在 WmsMaterialCoilMapper.xml 中实现统计 SQL 查询
- 在 WmsMaterialCoilServiceImpl 中实现统计业务逻辑
- 支持按筛选条件统计总毛重、总净重和总数
- 采用高性能查询方式只查询 sum/count 聚合数据
- 独立统计接口不影响原有分页查询功能

klp-wms/src/main/java/com/klp/controller/WmsMaterialCoilController.java

@@ -68,6 +68,15 @@ public class WmsMaterialCoilController extends BaseController {
         return iWmsMaterialCoilService.queryPageListWithBindInfo(bo, pageQuery);
     }
 
+    /**
+     * 统计筛选条件下的全量汇总数据
+     * 独立的统计接口，使用与分页列表相同的查询条件
+     */
+    @GetMapping("/statisticsList")
+    public R<Map<String, java.math.BigDecimal>> getStatistics(WmsMaterialCoilBo bo) {
+        return R.ok(iWmsMaterialCoilService.getStatistics(bo));
+    }
+
     /**
      * 原料钢卷库位分布查询（先库位，再钢卷映射）
      */

klp-wms/src/main/java/com/klp/mapper/WmsMaterialCoilMapper.java

@@ -97,5 +97,12 @@ List<WmsMaterialCoilDeliveryExportVo> selectDeliveryExportListByCoilIds(@Param("
      * @return 不匹配的钢卷列表
      */
     List<WmsMaterialCoil> selectMismatchedItemCoils();
+
+    /**
+     * 统计筛选条件下的全量汇总数据（高性能：只查sum/count）
+     * @param qw 查询条件（只使用WHERE和JOIN部分）
+     * @return 统计结果（Map包含totalGrossWeight, totalNetWeight）
+     */
+    Map<String, Object> selectStatistics(@Param("ew") QueryWrapper<WmsMaterialCoil> qw);
 }
 

klp-wms/src/main/java/com/klp/service/IWmsMaterialCoilService.java

@@ -42,6 +42,12 @@ public interface IWmsMaterialCoilService {
      */
     List<WmsMaterialCoilVo> queryList(WmsMaterialCoilBo bo);
 
+    /**
+     * 统计筛选条件下的全量汇总数据（高性能：只查sum/count）
+     * 独立的统计接口，不影响分页查询
+     */
+    Map<String, java.math.BigDecimal> getStatistics(WmsMaterialCoilBo bo);
+
     /**
      * 新增钢卷物料表
      */

klp-wms/src/main/java/com/klp/service/impl/WmsMaterialCoilServiceImpl.java

@@ -342,6 +342,16 @@ public class WmsMaterialCoilServiceImpl implements IWmsMaterialCoilService {
         return TableDataInfo.build(bindResult);
     }
 
+    /**
+     * 统计筛选条件下的全量汇总数据（高性能：只查sum/count）
+     * 独立的统计接口，不影响分页查询
+     */
+    @Override
+    public Map<String, BigDecimal> getStatistics(WmsMaterialCoilBo bo) {
+        QueryWrapper<WmsMaterialCoil> qw = buildQueryWrapperPlus(bo);
+        return selectMaterialCoilStatistics(qw);
+    }
+
     private Page<WmsMaterialCoilVo> queryMaterialCoilPage(WmsMaterialCoilBo bo, PageQuery pageQuery) {
         QueryWrapper<WmsMaterialCoil> qw = buildQueryWrapperPlus(bo);
         Page<WmsMaterialCoilVo> result;
@@ -380,6 +390,30 @@ public class WmsMaterialCoilServiceImpl implements IWmsMaterialCoilService {
         }
     }
 
+    /**
+     * 统计筛选条件下的全量汇总数据（高性能：只查sum/count）
+     */
+    private Map<String, BigDecimal> selectMaterialCoilStatistics(QueryWrapper<WmsMaterialCoil> qw) {
+        Map<String, BigDecimal> result = new HashMap<>();
+        result.put("total_gross_weight", BigDecimal.ZERO);
+        result.put("total_net_weight", BigDecimal.ZERO);
+        result.put("total_count", BigDecimal.ZERO);
+
+        try {
+            Map<String, Object> stats = baseMapper.selectStatistics(qw);
+            if (stats != null) {
+                Object grossWeight = stats.get("total_gross_weight");
+                Object netWeight = stats.get("total_net_weight");
+                result.put("total_gross_weight", grossWeight != null ? new BigDecimal(grossWeight.toString()) : BigDecimal.ZERO);
+                result.put("total_net_weight", netWeight != null ? new BigDecimal(netWeight.toString()) : BigDecimal.ZERO);
+            }
+        } catch (Exception e) {
+            log.warn("统计查询失败: {}", e.getMessage());
+        }
+
+        return result;
+    }
+
     private void fillBindInfoForPage(List<WmsMaterialCoilBindVo> records) {
         // 绑定信息仅用于专用接口，避免污染通用分页结构
         try {

klp-wms/src/main/resources/mapper/klp/WmsMaterialCoilMapper.xml

@@ -902,5 +902,27 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
           )
     </select>
 
+    <!-- 统计筛选条件下的全量汇总数据（高性能：只查sum/count） -->
+    <select id="selectStatistics" resultType="java.util.Map">
+        SELECT
+            IFNULL(SUM(mc.gross_weight), 0) AS total_gross_weight,
+            IFNULL(SUM(mc.net_weight), 0) AS total_net_weight,
+            COUNT(mc.coil_id) AS total_count
+        FROM wms_material_coil mc
+        LEFT JOIN wms_warehouse w ON mc.warehouse_id = w.warehouse_id
+        LEFT JOIN wms_warehouse nw ON mc.next_warehouse_id = nw.warehouse_id
+        LEFT JOIN wms_actual_warehouse aw ON mc.actual_warehouse_id = aw.actual_warehouse_id
+        LEFT JOIN sys_user su ON mc.sale_id = su.user_id
+        LEFT JOIN wms_raw_material rm ON mc.item_type = 'raw_material' AND mc.item_id = rm.raw_material_id
+        LEFT JOIN wms_product p ON mc.item_type = 'product' AND mc.item_id = p.product_id
+        LEFT JOIN (
+            SELECT coil_id, COUNT(*) AS abnormal_count
+            FROM wms_coil_abnormal
+            WHERE del_flag = 0
+            GROUP BY coil_id
+        ) ca ON mc.coil_id = ca.coil_id
+        ${ew.customSqlSegment}
+    </select>
+
 </mapper>