我要创建一个 Android vpn 应用程序。我扩展了一个 VpnService 类。下面是我的课：
public class MyVpnService extends VpnService {
private String TAG = "mjh";
private Thread thread;
private ServerConnection serverConnection;
private ParcelFileDescriptor pfd;
private ArrayList<Client> clients;
private boolean CONNECTED = false;
@Override
public void onCreate() {
super.onCreate();
}
@RequiresApi(api = Build.VERSION_CODES.O)
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
//line bellow creates a socket.io connection to my server and when connected successfully, it runs the onConnected code block:
serverConnection = new ServerConnection(
//onConnected
sc -> {
ascender = new Thread(() -> {
try {
pfd = new VpnService.Builder()
.addAddress("10.0.0.1", 24)
.setSession("MyVpnService")
.addRoute("0.0.0.0", 0)
.setBlocking(false)
.setUnderlyingNetworks(null)
.establish();
} catch (Exception e) {
Log.d(TAG, "Error : in creating localhost : " + e);
}
CONNECTED = true;
ByteBuffer buffer = ByteBuffer.allocate(10000);
FileInputStream is = new FileInputStream(pfd.getFileDescriptor());
while (CONNECTED) {
try {
try {
buffer.clear();
int length = is.read(buffer.array());
if (length > 0) {
byte[] data = new byte[length];
buffer.get(data, 0, length);
Log.d(TAG,Arrays.toString(data));
}
} catch (Exception e) {
Log.d(TAG, "Error in receiving data from device : " + e);
}
} catch (Exception e) {
Log.d(TAG, "Error in receiving data from device : " + e);
}
}
});
ascender.start();
},
//onDisconnected
sc -> {
CONNECTED = false;
}
);
return START_STICKY;
}
}
当我运行我的代码时，行：
Log.d(TAG,Arrays.toString(data));
记录以下数据：
[69, 0, 0, 52, 55, -121, 64, 0, 64, 6, -59, -82, -64, -88, 94, 15, -64, -88, 94, 46, - 72, 60, 11, -72, 104, -121, -27, 113, -75, 54, 10, 97, -128, 16, 0, 87, 111, -7, 0, 0, 1, 1 , ....]
或类似的数组。
如果我将行更改为以下内容：
Log.d(TAG , new String(data, "UTF-8"));
我得到一个乱七八糟的字符串，如下所示：
E??��S@??@�0��^��^.���=x|ܝ�]W�??W�a????
�^��=���S�U3�US�U�!US�Uj�$��9��US�US�US�Ui�PS�Tܡ��S�UW�U��US�US�U��UW�U��US�US�U���9W�U��US�US�US�U��2�ު��iȳ�A���W������S���]���@���@���������o��Cb�P#b�PCj����PCb�Pz+]U4T2q�`�PCb�PCb�PCb�R�b��Cb�P��z]�/Nh�!�J .�H�TX�C>�G1�J�[(�X3�BXg�R'���[i��[i��i�(�i��[i�����m�)Yi��[i��[i��[i��[l��[h�Y[�Z�[i��[i�)Yi��[i��[i�)[i��[i�)Yi��[i��[i�)m��[i�)Yi��[i��[i��[i���_���k������,Б�:�ܞ}���>���0ϔ�-�ʑ-֕�}ͅ�}������[�i��h��)��h��7ʛ7��ob}f��F4�ۯi�ƪi�Z�aϘ�lB3T�C:d�Zd�:(����:d�-�MR���f�:d�:d�:d�??d�:d��d�y:d�>d��f�:d�:d��d�>d��f�:d�:d��R��>d��f�:d�:d�:d��hi]�o]h�B2�
.��K�>�1�
�(�CK3�Kg�45ن99�99�19�x�9�99�p�<��y;9�99�99�9;9^��99D��4vt�GY��G�Z�k�W�X�L??�AX�Z�F ��1��??I��??I��??Hsl??I��??I���L�چhr�??I��??I��??I��??_��K��I�ş��??J��??Ir�??I��??I��??Hr�??I��??Ir�??I��??I��??Hrچh��??Ir�??I��??I��??I��??K���É*������O��M��Q���F���B���O��^�����G���W˂���D���Dͳ�D�MqDͳ�D͊�������L�Dͳ�Dͳ�Dͳ�Dۉ�Aϳ�E�<���Dη�D�L�Dͳ�Dͳ�D�L�Dͷ�D�L�Dͳ�Dͳ�D�L����D�L�Dͳ�Dͳ�Dͳ�Dρ�R�ݚf�� ���!��7���pȭ�3���=��� ��� ⸶p���p������G�K�G�T��N�C�G��A^ܰF{?����G���?�G��Bt
�Oʷ惁�G��D�
虽然它应该给我 http 请求，比如 GET 、 CONNECT 、 POST 等等
我也尝试了所有其他解码方法，除了 UTF-8 它没有用。
有什么建议可以达到我理想的请求字符串吗？
我也试过除UTF-8之外的所有其他解码方法，它没有用。 虽然它应该给我 http 请求，比如 GET 、 CONNECT 、 POST 等等。