Android之网络Http之判断是否连接服务器

1.采用Http方式：

public boolean isConnByHttp(){        boolean isConn = false;        URL url;        HttpURLConnection conn = null;        try {            url = new URL("ttp://wl.daishu001.com/YHDriver.asmx");            conn = (HttpURLConnection)url.openConnection();            conn.setConnectTimeout(1000*5);            if(conn.getResponseCode()==200){                isConn = true;            }                    } catch (MalformedURLException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }catch (IOException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }finally{            conn.disconnect();        }        return isConn;    }