HttpURLConnection请求与Pull解析

来源：互联网发布：erp软件开发编辑：程序博客网时间：2024/05/20 20:05

//请求方法

private void getHttp() {
       // TODO Auto-generated method stub
       new Thread(new Runnable() {

           @Override
           public void run() {
               // TODO Auto-generated method stub
               try {
                   URL url = new URL(你的URL);

                   HttpURLConnection h = (HttpURLConnection) url
                           .openConnection();

                   h.connect();

                   InputStream is = h.getInputStream();

                   /*BufferedReader br=new BufferedReader(new InputStreamReader(is));
                   String tag = "";
                   while((tag = br.readLine()) != null){

                       tag += br.readLine();
                       Log.i("yang", tag);
                   }*/
                   List<Book> book = getXml(is);

                   Message mag=new Message();
                   mag.obj = book;
                   handler.sendMessage(mag);
               } catch (MalformedURLException e) {
                   // TODO Auto-generated catch block
                   e.printStackTrace();
               } catch (IOException e) {
                   // TODO Auto-generated catch block
                   e.printStackTrace();
               }
           }

       }).start();
   }

//解析方法

private List<Book> getXml(InputStream is) {
       // TODO Auto-generated method stub

       try {
           XmlPullParser newPullParser = Xml.newPullParser();
           newPullParser.setInput(is, "UTF-8");

           int eventType = newPullParser.getEventType();
           while (isFlag) {
               switch (eventType) {
               case XmlPullParser.START_DOCUMENT:

                   list = new ArrayList<Book>();
                   break;
               case XmlPullParser.START_TAG:
                   tagNmae = newPullParser.getName();

                   if(tagNmae.equals("item")){
                       book = new Book();
                   }
                   break;
               case XmlPullParser.TEXT:

                   if(tagNmae.equals("id")){
                       book.setId(newPullParser.getText());
                   }else if(tagNmae.equals("catalog")){
                       book.setCatalog(newPullParser.getText());
                   }
                   break;
               case XmlPullParser.END_TAG:

                   tagNmae = newPullParser.getName();
                   if(tagNmae.equals("item")){
                       list.add(book);
                   }
                   break;
               case XmlPullParser.END_DOCUMENT:

                   isFlag = false;
                   //Log.i("yang", list.toString());
                   return list;


               }

               eventType = newPullParser.next();
           }
       } catch (XmlPullParserException e) {
           // TODO Auto-generated catch block
           e.printStackTrace();
       } catch (IOException e) {
           // TODO Auto-generated catch block
           e.printStackTrace();
       }
       return null;
   }

//显示数据

private Handler handler=new Handler(){
       public void handleMessage(android.os.Message msg) {

           List<Book> list2=(List<Book>) msg.obj;
           //Log.i("yang", list2.toString());
           for (Book book : list2) {
               name.add(book.getCatalog());
           }
           ArrayAdapter<String> adapter = new ArrayAdapter<String>(MainActivity.this, android.R.layout.simple_expandable_list_item_1, name);
           lv.setAdapter(adapter);
       };
   };

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