android網路請求中這兩個類已經基本不用，大部分是用已經封裝好的框架。

   try {
            URL url = new URL(url);
            HttpURLConnection urlconn = (HttpURLConnection) url.openConnection();
            urlconn.setRequestMethod("GET");
            urlconn.setConnectTimeout(3 * 1000);
            int code = urlconn.getResponseCode();
            if (code==200){
                InputStream inputStream = urlconn.getInputStream();
                Bitmap bitmap = BitmapFactory.decodeStream(inputStream);
                Message msg = Message.obtain();
                msg.obj=bitmap;
                handler.sendMessage(msg);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
 

	//1.建立httpclient物件
    			HttpClient client = new DefaultHttpClient();
    			//2.建立http Get請求物件
    			HttpGet get = new HttpGet(path);
    			try {
    				
    				//3.使用客戶端去傳送get請求，伺服器返回響應
					HttpResponse response = client.execute(get);
					//獲取狀態行
					StatusLine line = response.getStatusLine();
					if(line.getStatusCode() == 200){
						//獲取實體，伺服器返回的資料整體視為一個實體
						HttpEntity entity = response.getEntity();
						InputStream is = entity.getContent();
						String text = Tools.getTextFromStream(is);
						
						Message msg = handler.obtainMessage();
						msg.obj = text;
						handler.sendMessage(msg);
					}
				} catch (Exception e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}