XmlPullParser 解析xml文件

    public static List<Person> getPersons(InputStream xml) throws Exception{
        List<Person> persons = null;
        Person person = null;
        XmlPullParser pullParser = Xml.newPullParser();
        pullParser.setInput(xml, "UTF-8");//为Pull解析器设置要解析的XML数据
        int event = pullParser.getEventType();
        while(event != XmlPullParser.END_DOCUMENT){
            switch (event) {
            case XmlPullParser.START_DOCUMENT:
                persons = new ArrayList<Person>();
                break;
                
            case XmlPullParser.START_TAG:
                if("person".equals(pullParser.getName())){
                    int id = new Integer(pullParser.getAttributeValue(0));
                    person = new Person();
                    person.setId(id);
                }
                if("name".equals(pullParser.getName())){
                    String name = pullParser.nextText();
                    person.setName(name);
                }
                if("age".equals(pullParser.getName())){
                    int age = new Integer(pullParser.nextText());
                    person.setAge(age);
                }
                break;
                
            case XmlPullParser.END_TAG:
                if("person".equals(pullParser.getName())){
                    persons.add(person);
                    person = null;
                }
                break;
            }
            event = pullParser.next();
        }
        return persons;
    }