部门及子部门为空，添加判断

tuoheng-service/tuoheng-admin/src/main/java/com/tuoheng/admin/enums/SectionEnum.java

     DEPT_IS_NOT_EXIST(1220302, "部门不存在"),
     SECTION_ID_IS_NULL(1220303, "路段id为空"),
     SECTION_LIST_IS_NULL(1220304, "路段列表为空"),
-    DEPT_SECTION_IS_NOT_EXIST(1220305, "部门关联的路段为空");
+    DEPT_SECTION_IS_NOT_EXIST(1220305, "部门关联的路段为空"),
+    DEPT_ID_IS_NULL(1220306, "部门及子部门的id为空");
 
     /**
      * 错误码

tuoheng-service/tuoheng-admin/src/main/java/com/tuoheng/admin/service/section/SectionServiceImpl.java

                 return JsonResult.error(SectionEnum.DEPT_IS_NOT_EXIST.getCode(), SectionEnum.DEPT_IS_NOT_EXIST.getMsg());
             }
             List<String> deptList = deptMapper.selectAllChildListById(deptId);
+            if(StringUtils.isEmpty(deptList) && deptList.size()<=0){
+                return JsonResult.error(SectionEnum.DEPT_ID_IS_NULL.getCode(),SectionEnum.DEPT_ID_IS_NULL.getMsg());
+            }
             //根据部门列表查对应的部门路段数据列表
             List<SectionDept> sectionDeptList = sectionDeptMapper.selectList(Wrappers.<SectionDept>lambdaQuery()
                     .eq(SectionDept::getTenantId, tenantId)