优化

warehouse/src/main/java/com/baiyue/warehouse/controller/InternalPalletLocationController.java

@@ -13,10 +13,12 @@ import jakarta.annotation.PostConstruct;
 import jakarta.annotation.Resource;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestHeader;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.bind.annotation.RequestParam;
 
 import java.nio.charset.StandardCharsets;
 import java.security.MessageDigest;
@@ -81,6 +83,15 @@ public class InternalPalletLocationController {
         return ApiResponse.success(service.settle(request));
     }
 
+    @GetMapping("/occupied-resources")
+    @Operation(summary = "查询业务当前占用资源", description = "PDA提交前使用的只读实时库存事实")
+    public ApiResponse<List<LocationDtos.OccupiedResource>> occupiedResources(
+        @RequestHeader(value = "X-Internal-Service-Token", required = false) String token,
+        @RequestParam long tenantId, @RequestParam String sourceService, @RequestParam long businessId) {
+        verify(token);
+        return ApiResponse.success(service.occupiedResources(tenantId, sourceService, businessId));
+    }
+
     @PostMapping("/rebind-temporary-location")
     @Operation(summary = "A0临时库位换绑", description = "将一条具体A0托盘占用换绑到同仓空闲普通库位")
     public ApiResponse<PalletAllocationDtos.RebindTemporaryLocationResult> rebindTemporaryLocation(

warehouse/src/main/java/com/baiyue/warehouse/service/LocationResourceService.java

@@ -458,6 +458,19 @@ public class LocationResourceService {
             .toList();
     }
 
+    /** PDA 提交前读取当前占用事实；只读快照不持有数据库行锁。 */
+    @Transactional(readOnly = true)
+    public List<OccupiedResource> findOccupiedResources(long tenantId, String sourceService, long businessId) {
+        return repository.findOccupanciesByBusiness(tenantId, sourceService, businessId).stream()
+            .filter(item -> "OCCUPIED".equals(item.getOccupancyStatus()))
+            .sorted(Comparator.comparingLong(LocationOccupancyEntity::getReservationId)
+                .thenComparingLong(LocationOccupancyEntity::getId))
+            .map(item -> new OccupiedResource(item.getReservationId(), item.getId(), 0,
+                item.getWarehouseId(), item.getPalletId(), item.getLocationId(), item.getLocationCode(),
+                Boolean.TRUE.equals(item.getSharedOverflow()), requireAllocatedPackageCount(item)))
+            .toList();
+    }
+
     /** 将 A0 的一条托盘占用换绑到同仓空闲普通库位。 */
     @Transactional
     public LocationDtos.RebindTemporaryLocationResult rebindTemporaryLocation(

warehouse/src/main/java/com/baiyue/warehouse/service/OverseasStorageFeeService.java

@@ -153,9 +153,6 @@ public class OverseasStorageFeeService {
             .thenComparingInt(OverseasStorageFeeDtos.TierRequest::startDay));
         for (String feeType : List.of("STORAGE", "RETURN_STORAGE")) {
             List<OverseasStorageFeeDtos.TierRequest> group = tiers.stream().filter(t -> feeType.equals(t.feeType())).toList();
-            if (source.size() == 9 && (("STORAGE".equals(feeType) && group.size() != 5)
-                || ("RETURN_STORAGE".equals(feeType) && group.size() != 4)))
-                throw new BizException(ResultCode.VALIDATION_FAILED, "仓租必须5档，退货仓储费必须4档");
             int expectedStart = 1;
             for (int i = 0; i < group.size(); i++) {
                 OverseasStorageFeeDtos.TierRequest tier = group.get(i);

warehouse/src/main/java/com/baiyue/warehouse/service/PalletLocationAllocationService.java

@@ -538,6 +538,11 @@ public class PalletLocationAllocationService {
         return new ArrayList<>(locationResourceService.findActiveResources(tenantId, sourceService, businessId));
     }
 
+    public List<LocationDtos.OccupiedResource> occupiedResources(long tenantId, String sourceService,
+                                                                  long businessId) {
+        return locationResourceService.findOccupiedResources(tenantId, sourceService, businessId);
+    }
+
     private static PalletAllocationDtos.BatchResult fromActive(List<LocationDtos.ActiveResource> active,
                                                                 PalletVolumeSplitter.SplitResult split) {
         if (active.size() != split.palletCount()) {