feat: 增加包装关系分组事务写入器

nl-module-lms/nl-module-lms-server/src/main/java/cn/code/nl/module/lms/service/subpackagerelation/SubPackageRelationBatchSaveService.java

@@ -0,0 +1,31 @@
+package cn.code.nl.module.lms.service.subpackagerelation;
+
+import cn.code.nl.module.lms.dal.dataobject.subpackagerelation.SubPackageRelationDO;
+import cn.code.nl.module.lms.dal.mysql.subpackagerelation.SubPackageRelationMapper;
+import jakarta.annotation.Resource;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Propagation;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.List;
+
+/**
+ * 子卷包装关系批量保存服务
+ */
+@Service
+public class SubPackageRelationBatchSaveService {
+
+    /**
+     * 子卷包装关系数据访问对象
+     */
+    @Resource
+    private SubPackageRelationMapper subPackageRelationMapper;
+
+    /**
+     * 在独立事务中保存一组子卷包装关系
+     */
+    @Transactional(propagation = Propagation.REQUIRES_NEW, rollbackFor = Exception.class)
+    public void saveGroup(List<SubPackageRelationDO> group) {
+        subPackageRelationMapper.insertBatch(group);
+    }
+}