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我正在尝试将“helloWorld”（只是一个字符串）从我的 android 手机（三星 Galaxy s2）发送到我运行 linux 的 pc 上的 python 脚本。但我无法让它工作。以下是 android 应用程序（客户端）和 python 脚本（服务器）的代码。蓝牙在电脑和手机上工作正常（例如，我可以通过 BT 从手机发送照片）。当我调用 btSocket.connect(); 在下面的java代码中它只是不会连接。我是否必须指定要连接的端口，因为我已经为 serverSocket 指定了端口？任何帮助将不胜感激。

public class BlueTooth_testActivity extends Activity {
    TextView header;
    Button discoverDevicesBtn;
    Button sendMsgBtn;
    Button closeBtn;
    EditText sendTxt;
    BluetoothAdapter btAdapter;
    BluetoothSocket btSocket;
    private static String btAdress = "00:10:60:D1:95:CD";
    private static final UUID MY_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
    private OutputStream out;
    public BluetoothDevice device;
    private Boolean CONNECTED = false;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        //init layout parameters        
        header = (TextView) findViewById(R.id.text1);
        discoverDevicesBtn = (Button) findViewById(R.id.discBtn);
        sendMsgBtn = (Button) findViewById(R.id.sendButton);
        closeBtn = (Button) findViewById(R.id.closeButton);
        sendTxt = (EditText) findViewById(R.id.editText1);
        discoverDevicesBtn.setOnClickListener(discoverDeviceListener);
        sendMsgBtn.setOnClickListener(sendMsgListener);
        closeBtn.setOnClickListener(closeBtnListener);
        //init bluetooth
        btAdapter = BluetoothAdapter.getDefaultAdapter();
        if (btAdapter.isEnabled()) {
            Toast.makeText(this, "Bluetooth state:" + btAdapter.getState() + " Ok!", Toast.LENGTH_LONG).show();
        } else {
            Toast.makeText(this, "Bluetooth state:" + btAdapter.getState() + " Not ok!", Toast.LENGTH_LONG).show();
        }

    }

    private Button.OnClickListener discoverDeviceListener = new Button.OnClickListener() {@Override
        public void onClick(View v) {
            if (!CONNECTED) {
                device = btAdapter.getRemoteDevice(btAdress);
                header.append("\nRemote device: " + device.getName());
                try {
                    btSocket = device.createRfcommSocketToServiceRecord(MY_UUID);
                } catch (Exception e) {
                                    }
                header.append("\n createRfcommsockettoservice! ");
                btAdapter.cancelDiscovery();
                try {
                    btSocket.connect();
                    CONNECTED = true;
                    header.append("\n btSocket Created!");
                } catch (IOException e) {
                    Toast.makeText(getApplicationContext(), "Could not connect to socket", Toast.LENGTH_LONG);
                    try {
                        btSocket.close();
                    } catch (Exception b) {}
                }
            }

        }
    };


    private Button.OnClickListener sendMsgListener = new Button.OnClickListener() {@Override
        public void onClick(View v) {
            if (CONNECTED) {
                try {
                    out = btSocket.getOutputStream();
                    String msg = sendTxt.getText().toString();
                    byte[] msgBffr = msg.getBytes();
                    out.write(msgBffr);
                    Toast.makeText(getApplicationContext(), "Message sent", Toast.LENGTH_LONG).show();
                } catch (Exception a) {
                    Toast.makeText(getApplicationContext(), "Could not send msg", Toast.LENGTH_LONG).show();
                }
            } else {
                Toast.makeText(getApplicationContext(), "cant send msg, not connected", Toast.LENGTH_LONG).show();
            }

        }
    };


}

（因为问题出在连接设置的某个地方，所以我没有费心包含其余的 java 代码）

import bluetooth

name="bt_server"
target_name="siggen"
uuid="00001101-0000-1000-8000-00805F9B34FB"

def runServer():
serverSocket=bluetooth.BluetoothSocket(bluetooth.RFCOMM )
    port=bluetooth.PORT_ANY
    serverSocket.bind(("",port))
    print "Listening for connections on port: ", port   
    serverSocket.listen(1)
    port=serverSocket.getsockname()[1]
    inputSocket, address=serverSocket.accept()
    print "Got connection with" , address
    data=inputSocket.recv("1024")
    print "received [%s] \n " % data    
    inputSocket.close()
    serverSocket.close()  

runServer()

.

4

3 回答 3

1

服务器部分

当谈到 python 时，我已经超出了我的深度，但看起来你的 python 片段在任何地方都没有使用 uuid。例如，pybluez repo 有一个 示例服务器 ，他们在调用时使用 uuid advertise_service，您的代码段中似​​乎没有。如果您要做类似的事情，您的代码片段可能如下所示：

import bluetooth

name="bt_server"
target_name="siggen"
uuid="00001101-0000-1000-8000-00805F9B34FB"

def runServer():
serverSocket=bluetooth.BluetoothSocket(bluetooth.RFCOMM )
    port=bluetooth.PORT_ANY
    serverSocket.bind(("",port))
    print "Listening for connections on port: ", port   
    serverSocket.listen(1)
    port=serverSocket.getsockname()[1]

    #the missing piece
    advertise_service( server_sock, "SampleServer",
                       service_id = uuid,
                       service_classes = [ uuid, bluetooth.SERIAL_PORT_CLASS ],
                       profiles = [ bluetooth.SERIAL_PORT_PROFILE ] 
                        )

    inputSocket, address=serverSocket.accept()
    print "Got connection with" , address
    data=inputSocket.recv("1024")
    print "received [%s] \n " % data    
    inputSocket.close()
    serverSocket.close()  

runServer()

客户端

BluetoothDevice.createRfcommSocketToServiceRecord() 用于创建“安全通信套接字”。这是你的服务器在做什么？如果不是，也许 BluetoothDevice.createInsecureRfcommSocketToServiceRecord() 是合适的调用？

于 2013-01-25T10:18:55.167 回答
1

您不需要指定端口，它应该只是将您连接到第一个打开的 RFComm 通道。我为我制作的蓝牙应用程序发现的一件事是，为了让它在我的手机上工作，我必须在尝试连接应用程序之前手动连接到服务器正在运行的计算机。也就是说，我会Settings -> Wireless/Networks -> Bluetooth Settings -> <Find/Pair to Computer>完成所有这些工作，直到通知在我的系统托盘中弹出。然后，当我尝试通过我的应用程序建立套接字连接时，它可以工作。我觉得这很奇怪，因为我只需要在我的手机而不是平板电脑上跳过这些箍，所以这可能取决于设备。

此外，您将希望在单独的Thread.

于 2012-06-27T22:27:04.127 回答
1

按照已经发布的建议，以下是我如何让您的代码按照我期望的那样工作：

    

import bluetooth
    
    name="bt_server"
    target_name="test"
    # some random uuid, generated by https://www.famkruithof.net/uuid/uuidgen
    uuid="0fee0450-e95f-11e5-a837-0800200c9a66"
    
    def runServer():
        # you had indentation problems on this line:
        serverSocket=bluetooth.BluetoothSocket(bluetooth.RFCOMM )
        port=bluetooth.PORT_ANY
        serverSocket.bind(("",port))
        print "Listening for connections on port: ", port   

        # wait for a message to be sent to this socket only once
        serverSocket.listen(1)
        port=serverSocket.getsockname()[1]
    
        # you were 90% there, just needed to use the pyBluez command:
        bluetooth.advertise_service( serverSocket, "SampleServer",
                           service_id = uuid,
                           service_classes = [ uuid, bluetooth.SERIAL_PORT_CLASS ],
                           profiles = [ bluetooth.SERIAL_PORT_PROFILE ] 
                            )
    
        inputSocket, address=serverSocket.accept()
        print "Got connection with" , address
        data=inputSocket.recv(1024)
        print "received [%s] \n " % data    
        inputSocket.close()
        serverSocket.close()  
    
    runServer() 

从命令行运行，该代码将永远等待，直到通过蓝牙发送消息。因此，运行该代码后，您所要做的就是通过蓝牙连接您的 Android 设备，然后让设备通过您正在开发的 Android 应用程序方法或类似的方法发送数据（参考与上述相同的 uuid）要点（我使用的）：https ://gist.github.com/tito/7432757

于 2016-03-13T22:03:28.437 回答