DOM SAXReader

下面是一个例子：

        try {
            SAXReader reader = new SAXReader();
            Element root = reader.read(levelFilePath).getRootElement();
            List<Element> typeList = root.elements();

            for (Element typeElement : typeList) {
                List<Element> firstLevelList = typeElement.elements();

                for (Element firstLevelElement : firstLevelList) {
                    List<String> secondLevelNames = new ArrayList<String>();
                    List<Element> secondLevelList = firstLevelElement.elements();

                    for (Element secondLevelElement : secondLevelList) {
                        secondLevelNames.add(secondLevelElement.attributeValue("name"));
                    }
                    levelMap.put(firstLevelElement.attributeValue("name"), secondLevelNames);
                }
            }

        } catch (Exception e) {
            LOGGER.error("获取类别信息文件出错", e);
        }