#! /usr/bin/python
import bluetooth
import uuid
server_socket = bluetooth.BluetoothSocket( bluetooth.RFCOMM )
port = 1
server_socket.bind(("",port))
server_socket.listen(1)
uuID = ##generated uuid
bluetooth.advertise_service( server_socket, "test", service_id=uuID )
client_socket, client_address = server_socket.accept()
print(client_socket)
print(client_address)
如果有人可以提供帮助,那将很棒。我已经尝试过大约5次浏览此处列出的说明:Python code for Bluetooth throws error after I had to reset the adapter
我不断收到一条错误消息,指出“bluetooth.btcommon.BluetoothError:错误,没有可广告的设备”。行号指向advertise_service行,无论是否添加了pybluez github页面中的示例中所示的其他参数,它都会这样做,或将端口绑定(bind)到蓝牙。PORT_ANY
被调用的方法在这里:
def advertise_service (sock, name, service_id = "", service_classes = [], \
profiles = [], provider = "", description = "", protocols = []):
if service_id != "" and not is_valid_uuid (service_id):
raise ValueError ("invalid UUID specified for service_id")
for uuid in service_classes:
if not is_valid_uuid (uuid):
raise ValueError ("invalid UUID specified in service_classes")
for uuid, version in profiles:
if not is_valid_uuid (uuid) or version < 0 or version > 0xFFFF:
raise ValueError ("Invalid Profile Descriptor")
for uuid in protocols:
if not is_valid_uuid (uuid):
raise ValueError ("invalid UUID specified in protocols")
try:
_bt.sdp_advertise_service (sock._sock, name, service_id, \
service_classes, profiles, provider, description, \
protocols)
except _bt.error as e:
raise BluetoothError (str (e))
如果我不做广告,我就无法打印出客户信息,并且在android端得到一个空指针异常,所以我认为这是必要的,但是如果我做广告,就无法克服这个错误。
这是我必须获得此错误的最少代码量。就像我提到的,没有广告不会导致任何错误,但是我无法在连接上打印出客户端信息(Android端找不到pi)。
如果您确实知道在没有该部分的情况下执行此操作的方法,则下面是android代码:
Set<BluetoothDevice> pairedDevices = BTAdapter.getBondedDevices();
TextView textShowConnected = (TextView) findViewById(R.id.textShowConnected);
if (pairedDevices.size() > 0)
{
for (BluetoothDevice device : pairedDevices)
{
if(device.getName().toString().equals("Pi"))
{
textShowConnected.setText("Found the Pi. Address is "+device.getAddress());
TextView textShowConnectedSocket = (TextView) findViewById(R.id.textShowConnectedSocket);
//textShowConnectedSocket.setText("uuid is: "+device.getUuids()[0].getUuid().toString());
try
{
BluetoothSocket connection = device.createRfcommSocketToServiceRecord(device.getUuids()[0].getUuid());
//BluetoothSocket connection = device.createInsecureRfcommSocketToServiceRecord(device.getUuids()[0].getUuid());
connection.connect();
if(connection.isConnected())
{
textShowConnected.setText("Is connected from second.");
textShowConnectedSocket.setText("Is conencted to: "+connection.getRemoteDevice().getName().toString());
textShowPlace.setText("Is connected to: "+connection.getRemoteDevice().getAddress().toString());
}
else
{
textShowConnected.setText("No connection.");
textShowConnectedSocket.setText("No connection.");
textShowPlace.setText("No connection.");
}
}
catch (IOException e)
{
e.printStackTrace();
}
}
//DeviceItem newDevice = new DeviceItem(device.getName(), device.getAddress(), "false");
//deviceItemList.add(newDevice);
}
}
}
我最近的Java方面尝试(以防pi方面很好):
for (BluetoothDevice device : pairedDevices)
{
if(device.getName().toString().equals("Pi"))
{
textShowConnected.setText("Found the Pi. Address is "+device.getAddress());
TextView textShowConnectedSocket = (TextView) findViewById(R.id.textShowConnectedSocket);
TextView textShowPlace = (TextView) findViewById(R.id.textShowPlace);
//textShowConnectedSocket.setText("uuid is: "+device.getUuids()[0].getUuid().toString());
int bt_port_to_connect = 1;
BluetoothSocket deviceSocket = null;
Method m = null;
try {
textShowPlace.setText("created socket");
m = device.getClass().getMethod("createInsecureRfcommSocket", new Class[] {int.class});
deviceSocket = (BluetoothSocket) m.invoke(device,bt_port_to_connect);
deviceSocket.connect();
if(deviceSocket.isConnected())
{
textShowPlace.setText("is connected");
textShowConnectedSocket.setText("Connected successfully.");
textShowConnected.setText("Connected to: "+deviceSocket.getRemoteDevice().getName().toString());
}
else
{
textShowConnectedSocket.setText("Did not connect.");
}
}
catch (IOException e)
{
textShowPlace.setText("catch statement "+e);
textShowConnectedSocket.setText("No connection.");
}
catch (NoSuchMethodException e)
{
textShowConnected.setText("No such method.");
textShowPlace.setText("catch statement "+e);
}
catch (InvocationTargetException e)
{
textShowPlace.setText("catch statement "+e);
textShowConnectedSocket.setText("No connection.");
}
catch (IllegalAccessException e)
{
textShowPlace.setText("catch statement "+e);
textShowConnectedSocket.setText("No connection.");
}
//device.createRfcommSocketToServiceRecord(uuid);
//device.createInsecureRfcommSocketToServiceRecord(uuid);
}
//DeviceItem newDevice = new DeviceItem(device.getName(), device.getAddress(), "false");
//deviceItemList.add(newDevice);
}
我非常感谢与您建立连接方面的任何帮助。我不确定这里发生了什么。
最佳答案
看起来像在宣传它一样:“sudo hciconfig hci0 piscan”
要连接它,需要该导入中的bluetooth.PORT_ANY,因此我将其标记为已回答。
对于任何因为自己的问题而发现此问题的人。您现在有一个答案。祝你好运。