fix(batchUpdateDmsBaseStationProject): 优化保养项目批量更新逻辑

- 添加空列表检查，避免空指针异常
- 将批量插入改为逐条插入，解决 Oracle 933 错误
- 先清空现有关系再重建，避免历史脏数据残留
- 添加事务注解确保数据一致性
- 优化代码结构，提取单独的逐条插入方法

aucma-dms/src/main/java/com/aucma/dms/service/impl/DmsBaseStationProjectServiceImpl.java

@@ -106,11 +106,14 @@ public class DmsBaseStationProjectServiceImpl implements IDmsBaseStationProjectS
     @Override
     @Transactional
     public int batchUpdateDmsBaseStationProject(List<DmsBaseStationProject> dmsBaseStationProjectList){
-        //复选框，先根据MaintStationId删除表中数据，再批量添加
-        for( DmsBaseStationProject dmsBaseStationProject:dmsBaseStationProjectList){
+        if (dmsBaseStationProjectList == null || dmsBaseStationProjectList.isEmpty()) {
+            return 0;
+        }
+        // 这里先清空部位已有关系，再按当前勾选结果重建，避免历史脏数据或重复关系残留。
+        for (DmsBaseStationProject dmsBaseStationProject : dmsBaseStationProjectList) {
             dmsBaseStationProjectMapper.deleteDmsBaseStationProjectByMaintStationId(dmsBaseStationProject.getMaintStationId());
         }
-        return dmsBaseStationProjectMapper.batchInsertDmsBaseStationProject(dmsBaseStationProjectList);
+        return insertStationProjectsOneByOne(dmsBaseStationProjectList);
     }
 
     /**
@@ -120,8 +123,26 @@ public class DmsBaseStationProjectServiceImpl implements IDmsBaseStationProjectS
      * @return 结果
      */
     @Override
+    @Transactional
     public int batchInsertDmsBaseStationProject(List<DmsBaseStationProject> dmsBaseStationProjectList){
-        return dmsBaseStationProjectMapper.batchInsertDmsBaseStationProject(dmsBaseStationProjectList);
+        return insertStationProjectsOneByOne(dmsBaseStationProjectList);
+    }
+
+    private int insertStationProjectsOneByOne(List<DmsBaseStationProject> dmsBaseStationProjectList)
+    {
+        if (dmsBaseStationProjectList == null || dmsBaseStationProjectList.isEmpty()) {
+            return 0;
+        }
+        int rows = 0;
+        for (DmsBaseStationProject dmsBaseStationProject : dmsBaseStationProjectList) {
+            if (dmsBaseStationProject == null || dmsBaseStationProject.getMaintStationId() == null
+                    || dmsBaseStationProject.getMaintProjectId() == null) {
+                continue;
+            }
+            // 这里改成事务内逐条插入，是为了规避 Oracle 11/19 在批量 SQL 解析差异下触发 ORA-00933。
+            rows += dmsBaseStationProjectMapper.insertDmsBaseStationProject(dmsBaseStationProject);
+        }
+        return rows;
     }
 
     /**
@@ -134,3 +155,4 @@ public class DmsBaseStationProjectServiceImpl implements IDmsBaseStationProjectS
         return dmsBaseStationProjectMapper.selectDmsBaseStationProjectBymaintProjectId(maintProjectId);
     }
 }
+