public class DomHelper {

    public static ArrayList<Person> queryXML(Context context)

    {

        ArrayList<Person> Persons = new ArrayList<Person>();

        try {

            //①获得DOM解析器的工厂示例:

            DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();

            //②从Dom工厂中获得dom解析器

            DocumentBuilder dbBuilder = dbFactory.newDocumentBuilder();

            //③把要解析的xml文件读入Dom解析器

            Document doc = dbBuilder.parse(context.getAssets().open("person2.xml"));

            System.out.println("处理该文档的DomImplemention对象=" + doc.getImplementation());

            //④得到文档中名称为person的元素的结点列表

            NodeList nList = doc.getElementsByTagName("person");

            //⑤遍历该集合,显示集合中的元素以及子元素的名字

            for(int i = 0;i < nList.getLength();i++)

            {

                //先从Person元素开始解析

                Element personElement = (Element) nList.item(i);

                Person p = new Person();

                p.setId(Integer.valueOf(personElement.getAttribute("id")));

                //获取person下的name和age的Note集合

                NodeList childNoList = personElement.getChildNodes();

                for(int j = 0;j < childNoList.getLength();j++)

                {

                    Node childNode = childNoList.item(j);

                    //判断子note类型是否为元素Note

                    if(childNode.getNodeType() == Node.ELEMENT_NODE)

                    {

                        Element childElement = (Element) childNode;

                        if("name".equals(childElement.getNodeName()))

                            p.setName(childElement.getFirstChild().getNodeValue());

                        else if("age".equals(childElement.getNodeName()))

                            p.setAge(Integer.valueOf(childElement.getFirstChild().getNodeValue()));

                    }

                }

                Persons.add(p);

            }

        } catch (Exception e) {e.printStackTrace();}

        return Persons;

    }

}