Android的PULL解析互联网上的XML文件

public class XmlActivity extends Activity {
 private ListView listView;

 @Override
 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.main);

  listView = (ListView) this.findViewById(R.id.listView);

  try {
   List<Video> videos = VideoService.getLastVides();

   List<HashMap<String, Object>> data = new ArrayList<HashMap<String, Object>>();

   for (Video video : videos) {
    HashMap<String, Object> item = new HashMap<String, Object>();
    item.put("id", video.getId());
    item.put("title", video.getTitle());
    item.put("timelength", video.getTime());
    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) {
   Toast.makeText(XmlActivity.this, "获取最新资讯失败", 1);
   Log.e("XmlActivity", e.toString());
  }

 }
}

 

 

public class VideoService {







public static void save(List<Person> persons, OutputStream outStream) throws Throwable{
  XmlSerializer serializer = Xml.newSerializer();
  serializer.setOutput(outStream,"UTF-8");
  serializer.startDocument("UTF-8", true);
  
  serializer.startTag(null, "persons");
  
  for(Person person:persons){
   serializer.startTag(null, "person");
   serializer.attribute(null, "id", String.valueOf(person.getId()));
   
   
   serializer.startTag(null, "name");
   serializer.text(person.getName());
   serializer.endTag(null, "name");
   
   serializer.startTag(null, "age");
   serializer.text(String.valueOf(person.getAge()));
   serializer.endTag(null, "age");
   
   
   serializer.endTag(null, "person");
  }
  
  serializer.endTag(null, "persons");
  serializer.endDocument();
  outStream.close();
 }



 public static List<Video> getLastVides() throws Exception{
  String path = "http://www.secn.com.cn";
  URL url = new URL(path);
  HttpURLConnection conn = (HttpURLConnection) url.openConnection();
  conn.setReadTimeout(5*1000);
  conn.setRequestMethod("GET");
  InputStream inStream = conn.getInputStream();
  return ParserXML(inStream);
 }

 private static List<Video> ParserXML(InputStream inStream) throws XmlPullParserException, IOException {
  List<Video> videos = null;
  Video video = null;
  XmlPullParser parser = Xml.newPullParser();
  parser.setInput(inStream, "UTF-8");
  int eventType = parser.getEventType();//产生第一个事件
  while(eventType!=XmlPullParser.END_DOCUMENT){//只要不是文档结束事件
   switch (eventType) {
   case XmlPullParser.START_DOCUMENT:
    videos = new ArrayList<Video>();
    break;
 
   case XmlPullParser.START_TAG:
    String name = parser.getName();//获取解析器当前指向的元素的名称
    if("video".equals(name)){
     video = new Video();
     video.setId(new Integer(parser.getAttributeValue(0)));
    }
    if(video!=null){
     if("title".equals(name)){
      video.setTitle(parser.nextText());//获取解析器当前指向元素的下一个文本节点的值
     }
     if("timelength".equals(name)){
      video.setTime(new Integer(parser.nextText()));
     }
    }
    break;
    
   case XmlPullParser.END_TAG:
    if("video".equals(parser.getName())){
     videos.add(video);
     video = null;
    }
    break;
   }
   eventType = parser.next();
  }
  return videos;
 }
 
}

 

 

 

public class Video {

 private int id;
 private String title;
 private int time;
 
 public Video() {}
 public Video(int id, String title, int time) {
  this.id = id;
  this.title = title;
  this.time = time;
 }
 public int getId() {
  return id;
 }
 public void setId(int id) {
  this.id = id;
 }
 public String getTitle() {
  return title;
 }
 public void setTitle(String title) {
  this.title = title;
 }
 public int getTime() {
  return time;
 }
 public void setTime(int time) {
  this.time = time;
 }

 
 
 
}

 

 

访问互联网权限：<uses-permission android:name="android.permission.INTERNET" />