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lastleg-service/src/main/java/com/baiyue/lastleg/palletops/service/PdaPalletOperationService.java

@@ -126,7 +126,8 @@ public class PdaPalletOperationService {
                 long quantity = entry.getValue().stream().anyMatch(item -> "RETURN_BULK_SKU_LABEL".equals(item.getOperationType()))
                     ? value(carton.getTotalQuantity()) : 1;
                 result.add(new PalletOperationResponses.RelabelSource(carton.getId(), 0L,
-                    pallet == null ? null : pallet.palletId(), palletCode, null, carton.getSourceBatchNo(), quantity, quantity,
+                    // 未组托退货箱使用 UNBOUND 和零身份，不对 null 执行基本类型拆箱。
+                    pallet == null ? 0L : pallet.palletId(), palletCode, null, carton.getSourceBatchNo(), quantity, quantity,
                     entry.getValue().stream().map(RelabelItem::getCartonMark).filter(Objects::nonNull).toList()));
             }
             return result;

lastleg-service/src/main/java/com/baiyue/lastleg/relabel/controller/MerchantRelabelApplicationController.java

@@ -31,8 +31,8 @@ public class MerchantRelabelApplicationController {
     @GetMapping("/quantity-summary")
     @PreAuthorize("hasAuthority('" + OverseasPermissions.MERCHANT_RELABEL_LIST + "')")
     public ApiResponse<com.baiyue.lastleg.relabel.service.RelabelQuantityService.Totals> quantities(
-        @AuthenticationPrincipal AuthenticatedUser user, @Valid RelabelRequests.Query query) {
-        return ApiResponse.success(quantities.totals(customer(user), query));
+        @AuthenticationPrincipal AuthenticatedUser user, @Valid RelabelRequests.QuantityQuery query) {
+        return ApiResponse.success(quantities.totals(customer(user), query.asQuery()));
     }
     @GetMapping("/inventory-candidates")
     @PreAuthorize("hasAuthority('" + OverseasPermissions.MERCHANT_RELABEL_LIST + "')")

lastleg-service/src/main/java/com/baiyue/lastleg/relabel/controller/RelabelApplicationController.java

@@ -31,9 +31,9 @@ public class RelabelApplicationController {
     @GetMapping("/quantity-summary")
     @PreAuthorize("hasAuthority('" + OverseasPermissions.RELABEL_ORDER_LIST + "')")
     public ApiResponse<com.baiyue.lastleg.relabel.service.RelabelQuantityService.Totals> quantities(
-        @AuthenticationPrincipal AuthenticatedUser user, @Valid RelabelRequests.Query query) {
+        @AuthenticationPrincipal AuthenticatedUser user, @Valid RelabelRequests.QuantityQuery query) {
         requirePlatform(user);
-        return ApiResponse.success(quantities.totals(null, query));
+        return ApiResponse.success(quantities.totals(null, query.asQuery()));
     }
     @Resource private com.baiyue.lastleg.relabel.pda.service.PdaRelabelService pdaService;
 

lastleg-service/src/main/java/com/baiyue/lastleg/relabel/dto/RelabelRequests.java

@@ -126,6 +126,15 @@ public final class RelabelRequests {
         public Query { if (page == 0) page = 1; if (size == 0) size = 20; }
     }
 
+    /** 数量汇总不需要分页参数，避免缺省原始数值绑定失败。 */
+    public record QuantityQuery(String relabelNo, String customerOrderNo, String skuCode, String status,
+                                String overseasWarehouseId, LocalDateTime createdFrom, LocalDateTime createdTo) {
+        public Query asQuery() {
+            return new Query(1, 200, relabelNo, customerOrderNo, skuCode, status,
+                overseasWarehouseId, createdFrom, createdTo);
+        }
+    }
+
     public record ChangeStatus(@NotBlank @Size(max = 32) String status,
                                @Size(max = 1000) String remark) {}