android http连接通常使用方式

URL url = new URL(path);		HttpURLConnection conn = null;		try {			conn = (HttpURLConnection) url.openConnection();			conn.setConnectTimeout(3000);			conn.setReadTimeout(3000);		} catch (IOException e) {			Log.e(TAG, "openConnection() failed! url = " + url);			e.printStackTrace();			return false;		}		try {			conn.setRequestMethod("GET");			if (conn.getResponseCode() == 200) {				InputStream xmlStream = conn.getInputStream();				parserStates(xmlStream);			} else {				Log.e(TAG,						"RequestMethod failed! code = "								+ conn.getResponseCode());			}		} catch (ConnectTimeoutException e) {			return false;		} catch (IOException e) {			e.printStackTrace();			return false;		}		if (conn != null) {			conn.disconnect();		}

在设置超时时间的方法中，设置超时的时间3000,在阻塞的getResponseCode方法中时间不准。

这样采取org.apache.http.client.HttpClient方法

HttpParams httpParameters = new BasicHttpParams();HttpConnectionParams.setConnectionTimeout(httpParameters, 500);HttpConnectionParams.setSoTimeout(httpParameters, 500);HttpGet httpget = new HttpGet(updateUrl.toURI());DefaultHttpClient httpClient = new DefaultHttpClient();httpClient.setParams(httpParameters);HttpResponse response = httpClient.execute(httpget);HttpEntity entity = response.getEntity();InputStream is = entity.getContent();//download file.....