android和bluecove

Question

我需要编写一些使用蓝牙的客户端-服务器应用程序。我需要在我的笔记本电脑上创建一些服务器(我使用java和bluecove)，它将发送一些数据到应用程序(在android上)。下面是我的代码：

服务器：

public class OBEXPutServer {

static final String serverUUID = "11111111111111111111111111111123";

public static void main(String[] args) throws IOException {

    LocalDevice.getLocalDevice().setDiscoverable(DiscoveryAgent.GIAC);

    SessionNotifier serverConnection = (SessionNotifier) Connector.open("btgoep://localhost:"
            + serverUUID + ";name=ObexExample");

    int count = 0;
    while(count < 2) {
        RequestHandler handler = new RequestHandler();
        serverConnection.acceptAndOpen(handler);
        System.out.println("Received OBEX connection " + (++count));
    }
}

private static class RequestHandler extends ServerRequestHandler {

    public int onPut(Operation op) {
        try {
            HeaderSet hs = op.getReceivedHeaders();
            String name = (String) hs.getHeader(HeaderSet.NAME);
            if (name != null) {
                System.out.println("put name:" + name);
            }

            return ResponseCodes.OBEX_HTTP_OK;
        } catch (IOException e) {
            e.printStackTrace();
            return ResponseCodes.OBEX_HTTP_UNAVAILABLE;
        }
    }
}
}

应用程序：

public class BTTestActivity extends Activity {

String dStarted = BluetoothAdapter.ACTION_DISCOVERY_STARTED;
String dFinished = BluetoothAdapter.ACTION_DISCOVERY_FINISHED;
BluetoothAdapter bluetooth = BluetoothAdapter.getDefaultAdapter();
static final String serverUUID = "11111111111111111111111111111123";

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

    BroadcastReceiver discoveryResult = new BroadcastReceiver() 
    {
        public void onReceive(Context context, Intent intent) 
        {
            String remoteDeviceName = intent.getStringExtra(BluetoothDevice.EXTRA_NAME);
            BluetoothDevice remoteDevice;

            remoteDevice = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);

            Log.i("@#$%^&*(*&^%$#@#$%^&*(", "WYSWIETLAM");
            Toast.makeText(getApplicationContext(), "Discovered: " + remoteDeviceName + " address " + remoteDevice.getAddress(), Toast.LENGTH_SHORT).show();

            try{
                BluetoothDevice device = bluetooth.getRemoteDevice(remoteDevice.getAddress());
                BluetoothSocket clientSocket = device.createRfcommSocketToServiceRecord(UUID.fromString(serverUUID));
                clientSocket.connect();

            } catch (IOException e) {
                Log.d("BLUETOOTH", e.getMessage());
            }
        }
    };

    registerReceiver(discoveryResult, new IntentFilter(BluetoothDevice.ACTION_FOUND));
}

public void fun(View view)
{   
    bluetooth.enable();

    if (!bluetooth.isDiscovering())
        bluetooth.startDiscovery();
}

}

我的问题是，当我尝试从应用程序连接到服务时，得到的结果如下：

11-26 13:41:04.959: E/AndroidRuntime(8830): FATAL EXCEPTION: main
11-26 13:41:04.959: E/AndroidRuntime(8830): java.lang.RuntimeException: Error receiving broadcast Intent { act=android.bluetooth.device.action.FOUND (has extras) } in andr.andr.BTTestActivity$1@40513e00
11-26 13:41:04.959: E/AndroidRuntime(8830):     at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:722)
11-26 13:41:04.959: E/AndroidRuntime(8830):     at android.os.Handler.handleCallback(Handler.java:587)
11-26 13:41:04.959: E/AndroidRuntime(8830):     at android.os.Handler.dispatchMessage(Handler.java:92)
11-26 13:41:04.959: E/AndroidRuntime(8830):     at android.os.Looper.loop(Looper.java:130)
11-26 13:41:04.959: E/AndroidRuntime(8830):     at android.app.ActivityThread.main(ActivityThread.java:3835)
11-26 13:41:04.959: E/AndroidRuntime(8830):     at java.lang.reflect.Method.invokeNative(Native Method)
11-26 13:41:04.959: E/AndroidRuntime(8830):     at java.lang.reflect.Method.invoke(Method.java:507)
11-26 13:41:04.959: E/AndroidRuntime(8830):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:847)
11-26 13:41:04.959: E/AndroidRuntime(8830):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:605)
11-26 13:41:04.959: E/AndroidRuntime(8830):     at dalvik.system.NativeStart.main(Native Method)
11-26 13:41:04.959: E/AndroidRuntime(8830): Caused by: java.lang.IllegalArgumentException: Invalid UUID: 11111111111111111111111111111133
11-26 13:41:04.959: E/AndroidRuntime(8830):     at java.util.UUID.fromString(UUID.java:226)
11-26 13:41:04.959: E/AndroidRuntime(8830):     at andr.andr.BTTestActivity$1.onReceive(BTTestActivity.java:44)
11-26 13:41:04.959: E/AndroidRuntime(8830):     at android.app.LoadedApk$ReceiverDispatcher$Args.run(LoadedApk.java:709)
11-26 13:41:04.959: E/AndroidRuntime(8830):     ... 9 more

有人知道这段代码出了什么问题吗？谢谢你的帮助。

编辑：

我将运行这个示例，就像您向我展示的那样，我运行它，但它不工作:(我的服务器有问题。他在start方法中的"StreamConnection streamConnection = connectionNotifier.acceptAndOpen();“行上停止。和hare是你的android应用程序中的日志：

11-26 16:08:32.569: D/MyActivity(2725): ON CREATE
11-26 16:08:32.569: D/MyActivity(2725): ON START
11-26 16:08:32.569: D/MyActivity(2725): INSIDE WHILE STATE ON
11-26 16:08:32.589: D/MyActivity(2725): Start discovery = true
11-26 16:08:32.589: D/MyActivity(2725): INSIDE WHILE IS DISCOVERING
11-26 16:08:32.589: D/MyActivity(2725): INSIDE WHILE IS DISCOVERING
11-26 16:08:32.589: D/MyActivity(2725): INSIDE WHILE IS DISCOVERING
11-26 16:08:32.589: D/MyActivity(2725): INSIDE WHILE IS DISCOVERING
11-26 16:08:32.589: D/MyActivity(2725): INSIDE WHILE IS DISCOVERING
11-26 16:08:32.589: D/MyActivity(2725): INSIDE WHILE IS DISCOVERING
11-26 16:08:32.589: D/MyActivity(2725): INSIDE WHILE IS DISCOVERING
11-26 16:08:32.619: D/MyActivity(2725): about to connect
11-26 16:18:18.529: D/MyActivity(3166): Connected!

当我点击按钮时，我会进入日志

11-26 16:19:02.389: D/MyActivity(3166): In listener button.

在您的应用程序代码中，我将蓝牙地址更改为笔记本电脑上的蓝牙设备。你知道哪里出了问题吗，也许我需要对你的代码做些别的事情？我有个问题。在你的应用程序代码中，你在哪里设置了服务器的UUID？

我注意到即使我不运行服务器，你的应用程序的日志也是一样的。它看起来像是应用程序只在我的笔记本电脑上看到蓝牙适配器，而没有看到服务器应用程序在我的笔记本电脑上运行。

顺便说一句。我使用BlueSoleil 6.4.149.0作为我的蓝牙堆栈，因为我的"Toshiba for windows“堆栈不能与bluecove一起工作。也许这里有问题？

Answer 1

看看我的答案：Why am I losing bluetooth client/server connection?

您应该在调用createRfcommSocket时尝试使用反射：

Method m = bt.getClass().getMethod("createRfcommSocket", new Class[] {int.class});

我已经做了一个服务器/客户端的蓝牙连接，它对我来说是有效的。我也遇到过类似的问题，在使用反射时也没问题。