解析网络上的json和图片的工具

public class NetWorkUtil {
    public static Bitmap getNetBitmap(String urlString) {

        try {
            //用URL封装链接地址;    URL url = new URL(urlString);
            //用url打开链接    HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
            //联网的状态码    int responseCode = urlConnection.getResponseCode();
            if (responseCode == 200) {
                //链接上获取输入流    InputStream ins = urlConnection.getInputStream();
                //把流直接转换成bitmap(系统提供的BitmapFactory)    Bitmap bitmap = BitmapFactory.decodeStream(ins);//BitmapFactory是个工具类,系统提供的    return bitmap;
            }
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }

    public static String getNetjson(String urlString) {
        try {
            URL url = new URL(urlString);
            HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
            urlConnection.setRequestMethod("GET");//若果是get请求可以不用配置; 其他请求必须配置    urlConnection.setConnectTimeout(8000);//设置链接超时间    InputStream inputStream = urlConnection.getInputStream();//获取网络返回的输入流;    //可拼接的字符串    StringBuilder stringBuilder = new StringBuilder();
            BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
            String temp = "";
            while ((temp = bufferedReader.readLine()) != null) {
                stringBuilder.append(temp);
            }
            //这个是网络获取的数据    String data = stringBuilder.toString();
            return data;
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return "";
    }
}