feat：空判断

haoban-manage3-service/src/main/java/com/gic/haoban/manage/service/service/out/impl/StaffApiServiceImpl.java

@@ -909,7 +909,7 @@ public class StaffApiServiceImpl implements StaffApiService {
     @Override
     public List<StaffDTO> listByUserIdsAndWxEnterpriseId(List<String> userIds, String wxEnterpriseId) {
         List<StaffDTO> list = staffService.listByUserIdsAndWxEnterpriseId(userIds, wxEnterpriseId);
-        if (list == null) {
+        if (CollectionUtils.isEmpty(list)) {
             return Collections.EMPTY_LIST;
         }
         for (StaffDTO staffDTO : list) {