筛选集合数据<java>

List<ResDevice> resDevices = resDeviceMapper.exportResDevices();
List<ResDevice> exportList = new ArrayList<>();

String selections = request.getParameter("selections");

if (!StrUtil.isBlank(selections)){
    List<String> selectionList = Arrays.asList(selections.split(","));//将字符串转化为列表
    exportList = resDevices.stream().filter(item-> selectionList.contains(item.getDeviceCode()) ).collect(Collectors.toList());
}
filter想到的不要是过滤，把它想成是筛选程序，比如list.stream().filter(item->筛选条件).collect(Collectors.toList)；