diff --git a/blade-service/blade-desk/src/main/java/org/springblade/desk/logistics/controller/OrderBindController.java b/blade-service/blade-desk/src/main/java/org/springblade/desk/logistics/controller/OrderBindController.java
index 4226f561..cf491320 100644
--- a/blade-service/blade-desk/src/main/java/org/springblade/desk/logistics/controller/OrderBindController.java
+++ b/blade-service/blade-desk/src/main/java/org/springblade/desk/logistics/controller/OrderBindController.java
@@ -82,11 +82,6 @@ public class OrderBindController {
         return iOrderBindService.getBoxcodelist();
     }
 
-    @GetMapping("/demo")
-    @ApiOperationSupport(order = 6)
-    public R demo(@RequestParam String boxCode) throws BusinessException {
-        return iOrderBoxService.getWcId(boxCode);
-    }
 
 
 }
diff --git a/blade-service/blade-desk/src/main/java/org/springblade/desk/logistics/service/impl/IOrderBoxServiceImpl.java b/blade-service/blade-desk/src/main/java/org/springblade/desk/logistics/service/impl/IOrderBoxServiceImpl.java
index a638ef77..5a921b61 100644
--- a/blade-service/blade-desk/src/main/java/org/springblade/desk/logistics/service/impl/IOrderBoxServiceImpl.java
+++ b/blade-service/blade-desk/src/main/java/org/springblade/desk/logistics/service/impl/IOrderBoxServiceImpl.java
@@ -700,12 +700,23 @@ public class IOrderBoxServiceImpl implements IOrderBoxService {
         }
 
         // 2. 尝试分配空闲库位
-        List<Location> freeLocationList = locationService.list(
-                new LambdaQueryWrapper<Location>()
-                        .ne(Location::getStatus, ORIGINAL_RACK)
-                        .eq(Location::getLocationStatus, STATUS_FREE)
-                        .orderByDesc((sql -> "RIGHT(LOCATION_CODE, 1) = '2'")
-        ));
+        List<Location> freeLocationList = null;
+        QueryWrapper<Location> wrapper2 = new QueryWrapper<Location>()
+                .ne("status", ORIGINAL_RACK)
+                .eq("location_status", STATUS_FREE)
+                .apply("SUBSTR(LOCATION_CODE, -1) = '2'");
+        List<Location> list2 = locationService.list(wrapper2);
+        if (!list2.isEmpty()) {
+            // 优先返回尾号为2的位置
+            freeLocationList = list2;
+        } else {
+            // 无尾号2的，查询所有符合条件的空闲位置
+            freeLocationList = locationService.list(
+                    new QueryWrapper<Location>()
+                            .ne("status", ORIGINAL_RACK)
+                            .eq("location_status", STATUS_FREE)
+            );
+        }
         if (!CollectionUtils.isEmpty(freeLocationList)) {
             Location location = freeLocationList.get(0);
             task.setLocationId(location.getId());
diff --git a/blade-service/blade-desk/src/test/java/org/springblade/desk/quality/service/LiquidTankTaskServiceTest.java b/blade-service/blade-desk/src/test/java/org/springblade/desk/quality/service/LiquidTankTaskServiceTest.java
index 7d1576f4..e95e8964 100644
--- a/blade-service/blade-desk/src/test/java/org/springblade/desk/quality/service/LiquidTankTaskServiceTest.java
+++ b/blade-service/blade-desk/src/test/java/org/springblade/desk/quality/service/LiquidTankTaskServiceTest.java
@@ -1,15 +1,29 @@
 package org.springblade.desk.quality.service;
 
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import jakarta.annotation.Resource;
+import org.springblade.desk.logistics.pojo.entity.Location;
+import org.springblade.desk.logistics.service.ILocationService;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 
+import java.util.List;
+
+import static org.springblade.desk.logistics.pojo.entity.Location.ORIGINAL_RACK;
+import static org.springblade.desk.logistics.pojo.entity.Station.STATUS_FREE;
+
 @SpringBootApplication
 class LiquidTankTaskServiceTest {
 
     @Resource
-    private LiquidTankTaskService222 liquidTankTaskService;
+    private ILocationService locationService;
 
     void contextLoads() {
-
+        List<Location> freeLocationList = locationService.list(
+                new LambdaQueryWrapper<Location>()
+                        .ne(Location::getStatus, ORIGINAL_RACK)
+                        .eq(Location::getLocationStatus, STATUS_FREE)
+                        .orderByDesc((sql -> "RIGHT(LOCATION_CODE, 1) = '2'")
+                        ));
+        System.out.println(freeLocationList);
     }
 }