8
Tôi đã thử các mã sau đây để khám phá một thiết bị bluetoothLỗi trong Device Discovery Bluetooth
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Vector;
import javax.bluetooth.DeviceClass;
import javax.bluetooth.DiscoveryAgent;
import javax.bluetooth.DiscoveryListener;
import javax.bluetooth.LocalDevice;
import javax.bluetooth.RemoteDevice;
import javax.bluetooth.ServiceRecord;
import javax.bluetooth.UUID;
/**
*
* Class that discovers all bluetooth devices in the neighbourhood,
*
* Connects to the chosen device and checks for the presence of OBEX push service in it.
* and displays their name and bluetooth address.
*
*
*/
public class BluetoothServiceDiscovery implements DiscoveryListener{
//object used for waiting
private static Object lock=new Object();
//vector containing the devices discovered
private static Vector vecDevices=new Vector();
private static String connectionURL=null;
/**
* Entry point.
*/
public static void main(String[] args) throws IOException {
BluetoothServiceDiscovery bluetoothServiceDiscovery=new BluetoothServiceDiscovery();
//display local device address and name
LocalDevice localDevice = LocalDevice.getLocalDevice();
System.out.println("Address: "+localDevice.getBluetoothAddress());
System.out.println("Name: "+localDevice.getFriendlyName());
//find devices
DiscoveryAgent agent = localDevice.getDiscoveryAgent();
System.out.println("Starting device inquiry...");
agent.startInquiry(DiscoveryAgent.GIAC, bluetoothServiceDiscovery);
try {
synchronized(lock){
lock.wait();
}
}
catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println("Device Inquiry Completed. ");
//print all devices in vecDevices
int deviceCount=vecDevices.size();
if(deviceCount <= 0){
System.out.println("No Devices Found .");
}
else{
//print bluetooth device addresses and names in the format [ No. address (name) ]
System.out.println("Bluetooth Devices: ");
for (int i = 0; i <deviceCount; i++) {
RemoteDevice remoteDevice=(RemoteDevice)vecDevices.elementAt(i);
System.out.println((i+1)+". "+remoteDevice.getBluetoothAddress()+" ("+remoteDevice.getFriendlyName(true)+")");
}
}
System.out.print("Choose the device to search for Obex Push service : ");
BufferedReader bReader=new BufferedReader(new InputStreamReader(System.in));
String chosenIndex=bReader.readLine();
int index=Integer.parseInt(chosenIndex.trim());
//check for obex service
RemoteDevice remoteDevice=(RemoteDevice)vecDevices.elementAt(index-1);
UUID[] uuidSet = new UUID[1];
uuidSet[0]=new UUID("1105",true);
System.out.println("\nSearching for service...");
agent.searchServices(null,uuidSet,remoteDevice,bluetoothServiceDiscovery);
try {
synchronized(lock){
lock.wait();
}
}
catch (InterruptedException e) {
e.printStackTrace();
}
if(connectionURL==null){
System.out.println("Device does not support Object Push.");
}
else{
System.out.println("Device supports Object Push.");
}
}
/**
* Called when a bluetooth device is discovered.
* Used for device search.
*/
public void deviceDiscovered(RemoteDevice btDevice, DeviceClass cod) {
//add the device to the vector
if(!vecDevices.contains(btDevice)){
vecDevices.addElement(btDevice);
}
}
/**
* Called when a bluetooth service is discovered.
* Used for service search.
*/
public void servicesDiscovered(int transID, ServiceRecord[] servRecord) {
if(servRecord!=null && servRecord.length>0){
connectionURL=servRecord[0].getConnectionURL(0,false);
}
synchronized(lock){
lock.notify();
}
}
/**
* Called when the service search is over.
*/
public void serviceSearchCompleted(int transID, int respCode) {
synchronized(lock){
lock.notify();
}
}
/**
* Called when the device search is over.
*/
public void inquiryCompleted(int discType) {
synchronized(lock){
lock.notify();
}
}//end method
}//end class
nhưng đã nhận lỗi sau:
Native Library intelbth_x64 not available
Native Library bluecove_x64 not available
Exception in thread "main" javax.bluetooth.BluetoothStateException: BlueCove libraries not available
at com.intel.bluetooth.BlueCoveImpl.createDetectorOnWindows(BlueCoveImpl.java:896)
at com.intel.bluetooth.BlueCoveImpl.detectStack(BlueCoveImpl.java:439)
at com.intel.bluetooth.BlueCoveImpl.access$500(BlueCoveImpl.java:65)
at com.intel.bluetooth.BlueCoveImpl$1.run(BlueCoveImpl.java:1020)
at java.security.AccessController.doPrivileged(Native Method)
at com.intel.bluetooth.BlueCoveImpl.detectStackPrivileged(BlueCoveImpl.java:1018)
at com.intel.bluetooth.BlueCoveImpl.getBluetoothStack(BlueCoveImpl.java:1011)
at javax.bluetooth.LocalDevice.getLocalDeviceInstance(LocalDevice.java:75)
at javax.bluetooth.LocalDevice.getLocalDevice(LocalDevice.java:95)
at BluetoothServiceDiscovery.main(BluetoothServiceDiscovery.java:42)
trong khi mã hóa trong nhật thực. Tôi đang sử dụng bluecove 2.1.0 và phiên bản 64 bit của Windows 8.
Mọi người có thể đề nghị tôi sửa chữa không?
bạn đang sử dụng phiên bản nào của win 8? 32/64 bit? – ridoy
Tôi đang sử dụng Windows 8 64 bit và phiên bản Eclipse của tôi cũng là 64 bit. – Ranveer
sau đó sử dụng thư viện bluecove phiên bản 64 bit .. – ridoy