httpUrlConnection

//网络获取文字信息public static String getJsonByHttpUrlConnection(String urlString) {    try {        URL url = new URL(urlString);        HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();        int responseCode = urlConnection.getResponseCode(); //获取状态码        if (responseCode == 200) {            InputStream inputStream = urlConnection.getInputStream();            BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));            //可拼接的字符串            StringBuilder stringBuilder = new StringBuilder();            String temp = "";            while ((temp = bufferedReader.readLine()) != null) {                stringBuilder.append(temp);            }            String jsonString = stringBuilder.toString();            return jsonString;        } else {        }    } catch (MalformedURLException e) {        e.printStackTrace();    } catch (IOException e) {        e.printStackTrace();    }    return "";}//网络获取图片信息public  static Bitmap getNetBitmap(String urlBitmap){    try {        URL url = new URL(urlBitmap);        HttpURLConnection httpurlConnection = (HttpURLConnection) url.openConnection();        httpurlConnection.setConnectTimeout(8000);//设置链接超时时间        int responseCode = httpurlConnection.getResponseCode();        if (responseCode == 200) {            InputStream inputStream = httpurlConnection.getInputStream();            //BitmapFactory:  android提供好的加工图片的工具类,            Bitmap bitmap = BitmapFactory.decodeStream(inputStream);            return bitmap;        } else {            //do nothing        }    } catch (MalformedURLException e) {        e.printStackTrace();    } catch (IOException e) {        e.printStackTrace();    }    return  null;}