（1）创建实体类News
public class News {private Integer id;private String title;private Integer timelength;public News(Integer id, String title, Integer timelength) {this.id = id;this.title = title;this.timelength = timelength;}//get、set方法}
（2）面向接口编程所创建的接口可接口的实现类：
{/*** 获取最新的视频资讯* @return*/public List<News> getLastNews();}
接口的实现类，用于加入一些假数据
{public List<News> getLastNews(){List<News> newes = new ArrayList<News>();newes.add(new News(90, “喜羊羊与灰太狼全集”, 78));newes.add(new News(10, “实拍舰载直升东海救援演习”, 28));newes.add(new News(56, “喀麦隆VS荷兰”, 70));return newes;}}
（3）通过servlet返回数据大客户端
{serialVersionUID = 1L;private VideoNewsService service = new VideoNewsServiceBean();(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException {doPost(request, response);}(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException {List<News> videos = service.getLastNews();request.setAttribute(“videos”, videos);//重定向一个jsp界面，当客户端请求的时候返回的是该jsp页面数据request.getRequestDispatcher(“/WEB-INF/page/videonews.jsp”).forward(request, response);}}
（4）生成xml文件的jsp页面（这里返回的为xml文件所以contentType=”text/xml”）
>==>${video.timelength}></videonews>
（5）在客户端中使用xml文件 同样的客户端同样需要一个News实体类，这里省略 创建一个service类用于解析xml和返回xml文件数据
{/*** 获取最新的视频资讯*/public static List<News> getLastNews() throws Exception{String path = “请求servlet的url”;URL url = new URL(path);HttpURLConnection conn = (HttpURLConnection) url.openConnection();conn.setConnectTimeout(5000);conn.setRequestMethod(“GET”);if(conn.getResponseCode() == 200){InputStream inStream = conn.getInputStream();return parseXML(inStream);}return null;}/*** 解析服务器返回的xml数据<?xml version=”1.0″ encoding=”UTF-8″ ?> <videonews> <news> <title>喜羊羊与灰太狼全集</title> <timelength>90</timelength> </news> <news> <title>老张与灰太狼</title> <timelength>20</timelength> </news> <news> <title>老方与LILI</title> <timelength>30</timelength> </news></videonews>*/private static List<News> parseXML(InputStream inStream) throws Exception {List<News> newses = new ArrayList<News>();News news = null;XmlPullParser parser = Xml.newPullParser();parser.setInput(inStream, “UTF-8”);int event = parser.getEventType();//对xml解析器的事件进行判断while( event != XmlPullParser.END_DOCUMENT){switch (event) {case XmlPullParser.START_TAG:if(“news”.equals(parser.getName())){int id = new Integer(parser.getAttributeValue(0));news = new News();news.setId(id);}else if(“title”.equals(parser.getName())){news.setTitle(parser.nextText());}else if(“timelength”.equals(parser.getName())){news.setTimelength(new Integer(parser.nextText()));}break;case XmlPullParser.END_TAG:if(“news”.equals(parser.getName())){newses.add(news);news = null;}break;}event = parser.next();}return newses;}}
（6）在Mainactivity.java文件中使用（这里是为一个listview设置值）
{(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);ListView listView = (ListView) this.findViewById(R.id.listView);try {List<News> videos = VideoNewsService.getLastNews();//需修改成你本机的Http请求路径List<HashMap<String, Object>> data = new ArrayList<HashMap<String,Object>>();for(News news : videos){HashMap<String, Object> item = new HashMap<String, Object>();item.put(“id”, news.getId());item.put(“title”, news.getTitle());item.put(“timelength”, getResources().getString(R.string.timelength)+ news.getTimelength()+ getResources().getString(R.string.min));data.add(item);}SimpleAdapter adapter = new SimpleAdapter(this, data, R.layout.item,new String[]{“title”, “timelength”}, new int[]{R.id.title, R.id.timelength});listView.setAdapter(adapter);} catch (Exception e) {e.printStackTrace();}}}
到此完成操作
，大多数人想要改造这个世界，但却罕有人想改造自己。
