@Override
    public List<String> selectList(Element doc) {
        List<String> strings = new ArrayList<String>();
        List<Element> elements = selectElements(doc);
        if (CollectionUtils.isNotEmpty(elements)) {
            for (Element element : elements) {
                String value = getValue(element);
                if (value != null) {
                    strings.add(value);
                }
            }
        }
        return strings;
    }
CSS selector. Based on Jsoup.

@author code4crafter@gmail.com <br>
@since 0.1.0
webmagic-core/src/main/java/us/codecraft/webmagic/selector/CssSelector.java