Collection<String> anntIds = sysAnnouncementSendService.queryByUserId(userId);
        LambdaQueryWrapper<SysAnnouncement> querySaWrapper = new LambdaQueryWrapper<SysAnnouncement>();
        querySaWrapper.eq(SysAnnouncement::getMsgType, CommonConstant.MSG_TYPE_ALL); // 全部人员
        querySaWrapper.eq(SysAnnouncement::getDelFlag, CommonConstant.DEL_FLAG_0);  // 未删除
        querySaWrapper.eq(SysAnnouncement::getSendStatus, CommonConstant.HAS_SEND); //已发布
        if (!anntIds.isEmpty()) {
            querySaWrapper.notIn(SysAnnouncement::getId, anntIds);
        }
        List<SysAnnouncement> announcements = sysAnnouncementService.list(querySaWrapper);