diff --git a/modules/i3plus-pojo-wms/src/main/java/cn/estsh/i3plus/pojo/wms/bean/WmsActionResponseBean.java b/modules/i3plus-pojo-wms/src/main/java/cn/estsh/i3plus/pojo/wms/bean/WmsActionResponseBean.java
index 62f285f..8ddd632 100644
--- a/modules/i3plus-pojo-wms/src/main/java/cn/estsh/i3plus/pojo/wms/bean/WmsActionResponseBean.java
+++ b/modules/i3plus-pojo-wms/src/main/java/cn/estsh/i3plus/pojo/wms/bean/WmsActionResponseBean.java
@@ -8,6 +8,7 @@ import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
 
+import java.io.Serializable;
 import java.util.List;
 import java.util.Map;
 
@@ -22,7 +23,7 @@ import java.util.Map;
 @NoArgsConstructor
 @AllArgsConstructor
 @Api("返回前端数据实体")
-public class WmsActionResponseBean<Obj> {
+public class WmsActionResponseBean<Obj> implements Serializable {
 
     @ApiParam("回显BARCODE值")
     public Map<String, Obj> barCode;
diff --git a/modules/i3plus-pojo-wms/src/main/java/cn/estsh/i3plus/pojo/wms/repository/WmsStockSnRepository.java b/modules/i3plus-pojo-wms/src/main/java/cn/estsh/i3plus/pojo/wms/repository/WmsStockSnRepository.java
index 88085bf..75d02d3 100644
--- a/modules/i3plus-pojo-wms/src/main/java/cn/estsh/i3plus/pojo/wms/repository/WmsStockSnRepository.java
+++ b/modules/i3plus-pojo-wms/src/main/java/cn/estsh/i3plus/pojo/wms/repository/WmsStockSnRepository.java
@@ -11,4 +11,10 @@ import cn.estsh.i3plus.pojo.wms.bean.WmsStockSn;
 * @Modify:
 **/
 public interface WmsStockSnRepository extends BaseRepository<WmsStockSn, Long> {
+    /**
+     * 按照条码查询实体
+     * @param sn 条码
+     * @return 库存条码实体
+     */
+    WmsStockSn findFirstBySn(String sn);
 }