Android请求网络url,返回[B@4191c1a8[B@4191c1a8这个结果是什么意思?

HttpURLConnection httpURLConnection = (HttpURLConnection) new URL(url).openConnection();
httpURLConnection.setConnectTimeout(10 * 1000);
httpURLConnection.setRequestMethod("GET");

                int code = httpURLConnection.getResponseCode();
                if (code == 200) {

                    InputStream inputStream = httpURLConnection.getInputStream();

                    byte[] bytes = new byte[1024];
                    int length = 0;
                    StringBuilder stringBuilder = new StringBuilder();
                    while ((length = inputStream.read(bytes)) != -1)
                         stringBuilder.append(bytes);
                                                    Log.v("s",strignBuilder.toString());

 stringBuilder.append(bytes);
不能这么写，这么写调用的是bytes这个数组的toString()
应该是
{
String t = new String(bytes);
stringBuilder.append(bytes);
}