XML转Map工具类

public class XmlToMapUtils{
     //将xml字符串转换成map
    public static Map<String, Object> xmlToMap(String xml) {
        Document doc = null;
        try {
            doc = DocumentHelper.parseText(xml);
        } catch (DocumentException e) {
            e.printStackTrace();
        }
        Map<String, Object> map = new HashMap<String, Object>();
        if (doc == null)
            return map;
        Element rootElement = doc.getRootElement();
        element2map(rootElement, map);
        return map;
    }
    private static void element2map(Element elmt, Map<String, Object> map) {
        if (null == elmt) {
            return;
        }
        String name = elmt.getName();
        if (elmt.isTextOnly()) {
            map.put(name, elmt.getText());
        } else {
            Map<String, Object> mapSub = new HashMap<String, Object>();
            List<Element> elements = (List<Element>) elmt.elements();
            for (Element elmtSub : elements) {
                element2map(elmtSub, mapSub);
            }
            Object first = map.get(name);
            if (null == first) {
                map.put(name, mapSub);
            } else {
                if (first instanceof List<?>) {
                    ((List) first).add(mapSub);
                } else {
                    List<Object> listSub = new ArrayList<Object>();
                    listSub.add(first);
                    listSub.add(mapSub);
                    map.put(name, listSub);
                }
            }
        }
    }
}

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