apollo-portal/src/main/java/com/ctrip/framework/apollo/portal/spi/ldap/LdapUserService.java/LdapUserService/findByUserIds
class LdapUserService:  @Override
  public List<UserInfo> findByUserIds(List<String> userIds) {
    if (CollectionUtils.isEmpty(userIds)) {
      return Collections.emptyList();
    }
    if (StringUtils.isNotBlank(groupSearch)) {
      return searchUserInfoByGroup(groupBase, groupSearch, null, userIds);
    }
    ContainerCriteria criteria = query().where(loginIdAttrName).is(userIds.get(0));
    userIds.stream().skip(1).forEach(userId -> criteria.or(loginIdAttrName).is(userId));
    return ldapTemplate.search(ldapQueryCriteria().and(criteria), ldapUserInfoMapper);
  }