fix(outbound): 解决出库物料扫描记录中的空指针异常问题

- 添加 Objects 工具类导入用于空值检查
- 为 batchNo 字段添加安全的 getter 方法，避免空指针异常
- 为 serialNo 字段添加安全的 getter 方法，避免空指针异常
- 为 binNo 字段添加安全的 getter 方法，避免空指针异常
- 更新所有组合键方法使用新的安全 getter 方法
- 确保在构建组合键时正确处理空值情况

nflg-wms-common/src/main/java/com/nflg/wms/common/pojo/document/OutMaterialScanRecord.java

@@ -9,6 +9,7 @@ import org.springframework.data.mongodb.core.mapping.Document;
 
 import java.math.BigDecimal;
 import java.time.Instant;
+import java.util.Objects;
 
 @Data
 @Accessors(chain = true)
@@ -43,11 +44,19 @@ public class OutMaterialScanRecord {
      */
     private String batchNo;
 
+    public String getBatchNo() {
+        return Objects.isNull(batchNo) ? "" : batchNo;
+    }
+
     /**
      * 序列号
      */
     private String serialNo;
 
+    public String getSerialNo() {
+        return Objects.isNull(serialNo) ? "" : serialNo;
+    }
+
     /**
      * 工厂编号
      */
@@ -63,6 +72,10 @@ public class OutMaterialScanRecord {
      */
     private String binNo;
 
+    public String getBinNo() {
+        return Objects.isNull(binNo) ? "" : binNo;
+    }
+
     /**
      * 数量
      */
@@ -125,62 +138,62 @@ public class OutMaterialScanRecord {
     private String key;
 
     public String getKey() {
-        return this.materialNo + "|" + this.batchNo + "|" + this.serialNo + "|" + this.factoryNo + "|" + this.warehouseNo;
+        return this.materialNo + "|" + this.getBatchNo() + "|" + this.getSerialNo() + "|" + this.factoryNo + "|" + this.warehouseNo;
     }
 
     @Transient
     private String key1;
 
     public String getKey1() {
-        return this.materialNo + "|" + this.serialNo;
+        return this.materialNo + "|" + this.getSerialNo();
     }
 
     @Transient
     private String key3;
 
     public String getKey3() {
-        return this.serialNo + "|" + this.ext;
+        return this.getSerialNo() + "|" + this.ext;
     }
 
     @Transient
     private String key4;
 
     public String getKey4() {
-        return ebelp + "|" + this.materialNo + "|" + this.batchNo;
+        return ebelp + "|" + this.materialNo + "|" + this.getBatchNo();
     }
 
     @Transient
     private String key5;
 
     public String getKey5() {
-        return this.ebelp + "|" + this.serialNo;
+        return this.ebelp + "|" + this.getSerialNo();
     }
 
     @Transient
     private String key6;
 
     public String getKey6() {
-        return this.rspos + "|" + this.serialNo;
+        return this.rspos + "|" + this.getSerialNo();
     }
 
     @Transient
     private String key7;
 
     public String getKey7() {
-        return materialNo + "|" + batchNo;
+        return materialNo + "|" + getBatchNo();
     }
 
     @Transient
     private String key8;
 
     public String getKey8() {
-        return materialNo + "|" + batchNo + "|" + this.serialNo;
+        return materialNo + "|" + getBatchNo() + "|" + this.getSerialNo();
     }
 
     @Transient
     private String key9;
 
     public String getKey9() {
-        return materialNo + "|" + batchNo + "|" + this.serialNo + "|" + this.binNo;
+        return materialNo + "|" + getBatchNo() + "|" + this.getSerialNo() + "|" + this.getBinNo();
     }
 }