两个list对象取合集、差集

private List<WorkerInfo> dealUserData(List<WorkerInfo> workerInfoList,List<User> userList){
    List<String> userIds = userList.stream().map(User::getUserId).collect(Collectors.toList());
    workerInfoList = workerInfoList.stream().filter(entity -> !userIds.contains(entity.getUserId())).collect(Collectors.toList());
    return workerInfoList;