修改部门信息时，对公路null最过滤

tuoheng-service/tuoheng-admin/src/main/java/com/tuoheng/admin/service/dept/query/QueryDeptInfoService.java

 package com.tuoheng.admin.service.dept.query;
 
 import cn.hutool.core.collection.CollectionUtil;
+import cn.hutool.core.util.ObjectUtil;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.tuoheng.admin.conver.DeptConverMapper;
 import com.tuoheng.admin.dto.RoadSectionDto;
             sectionListTmp = new ArrayList<>();
             sectionListTmp.add(section);
             roadInformation = roadInformationMap.get(section.getRoadId());
+            if (ObjectUtil.isNull(roadInformation)) {
+                continue;
+            }
             roadSectionDto.setRoad(roadInformation);
             roadSectionDto.setSectionList(sectionListTmp);
             roadSectionDtoList.add(roadSectionDto);