Json解析

InputStream open = getAssets().open("Activity.json");
ByteArrayOutputStream stream = new ByteArrayOutputStream();
byte[] arr = new byte[1024];
int length;
while ((length = open.read(arr, 0, arr.length)) != -1) {
    stream.write(arr, 0, length);
}
s = new String(stream.toByteArray(), StandardCharsets.UTF_8);
Log.d(TAG, "onClick: " + s);

JSONObject object = new JSONObject(s);
JSONArray activity = object.getJSONArray("activity");
JSONObject object1 = new JSONObject();
object1.put("action", "android.intent.action.MyIntent");
JSONArray jsonArray = new JSONArray();
jsonArray.put(0, "00000000000");
jsonArray.put(1, "11111111111");
jsonArray.put(2, "22222222222");
object1.putOpt("hello", jsonArray);
activity.put(object1);
Log.d(TAG, "onClick: " + activity.toString());
JSONObject jsonObject = activity.getJSONObject(0);
String action = jsonObject.getString("action");
Log.d(TAG, "onClick: " + activity.toString());
Intent intent = new Intent();
intent.setAction(action);
intent.addCategory(Intent.CATEGORY_DEFAULT);
startActivity(intent);