通讯录导出异常修复

haoban-manage3-web/src/main/java/com/gic/haoban/manage/web/controller/StaffController.java

 package com.gic.haoban.manage.web.controller;
 
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Date;
-import java.util.List;
-import java.util.Map;
-import java.util.Objects;
-import java.util.Set;
+import java.util.*;
 import java.util.stream.Collectors;
 
 import javax.servlet.http.HttpServletRequest;
@@ -491,8 +485,12 @@ public class StaffController extends WebBaseController {
         WebLoginDTO login = AuthWebRequestUtil.getLoginUser();
         String wxEnterpriseId = login.getWxEnterpriseId();
         List<DepartmentDTO> relationList = departmentApiService.listSonByDepartmentIds(departmentIdSet, wxEnterpriseId);
-        Map<String, DepartmentDTO> departmentMap = relationList.stream().collect(Collectors.toMap(DepartmentDTO::getDepartmentId, s -> s));
-        List<String> departmentIds = relationList.stream().map(DepartmentDTO::getDepartmentId).collect(Collectors.toList());
+        Map<String, DepartmentDTO> departmentMap = new HashMap<>();
+        List<String> departmentIds = new ArrayList<>();
+        if(CollectionUtil.isNotEmpty(relationList)){
+            departmentMap = relationList.stream().collect(Collectors.toMap(DepartmentDTO::getDepartmentId, s -> s));
+            departmentIds = relationList.stream().map(DepartmentDTO::getDepartmentId).collect(Collectors.toList());
+        }
         List<StaffDTO> staffAllList = Lists.newArrayListWithCapacity(5000);
         pageInfo.setPageSize(Integer.MAX_VALUE);
         int pageNum = 1;