Détection de service Bluetooth sur un serveur

**belabyad** · 06/09/2008, 13h06

Bonjour tout le monde,

Voilà après plusieurs heures de recherche infructueuse, je tourne vers vous pour m'aider dans mon problème.

Le but est de faire communiquer un telephone mobile avec un serveur en bluetooth pour récupérer du texte.

J'ai développé une Midlet en utilisant la bluecove JSR82 la partie "Device discovery". C'est ok mon serveur est bien découvert, ensuite j'aimerais découvrir les SERVICES dispo sur mon serveur (développez en J2SE) sachant qu'il est bien lancé, pour cela j'utilise la méthode searchServices(...) avec ces méthodes :

servicesDiscovered(int i, ServiceRecord[] serviceRecord) {} //lors de la découverte.
serviceSearchCompleted(int i, int i0) {} //à la fin de la recherche.

Mon problème est qu'aucun service n'est découvert. (servicesDiscovered n'est jamais appellée.)

Voici mon code désolé mon code n'est pas si structuré.
Midlet :

Code :

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package com.ziad.bluetooth;
 
 
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
 
import java.util.Vector;
 
import javax.microedition.io.*;
import java.io.InputStream;
import java.io.PrintStream;
 
import javax.bluetooth.BluetoothStateException;
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;
import javax.microedition.io.Connector;
import javax.microedition.io.StreamConnection;
import javax.microedition.lcdui.Choice;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Form;
import javax.microedition.lcdui.List;
import javax.microedition.lcdui.TextField;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;
 
 
public class MyBluetoothClass extends MIDlet implements CommandListener, DiscoveryListener{
	    private Form form1;
	    private Display _display;
	    private Command detecter;
	    private LocalDevice local;
	    private DiscoveryAgent agent;
	    private List screenSearch;
	    Vector old_devices;
	    Vector devices;
	    long cache_len;
		long last_scan;
		//private static Object lock=new Object();
		private String connectionURL=null;
 
	public MyBluetoothClass() throws BluetoothStateException{
		//myBlue = new MyBluetoothClass();
	    local = LocalDevice.getLocalDevice();
	    agent = local.getDiscoveryAgent();
 
	    cache_len = 30000;
	    last_scan = 0;
	    old_devices = new Vector();
	    devices = new Vector();
 
	}
	  public RemoteDevice[] someDevs() {
		    RemoteDevice[] pre = preknownDevs();
		    RemoteDevice[] cached = cachedDevs();
 
		    int num_devs = pre.length + cached.length;
		    if(num_devs == 0) {
		      return scanDevs();
		    } else {
		      RemoteDevice[] r = new RemoteDevice[num_devs];
		      array_copy_unique(pre, r);
		      array_copy_unique(cached, r);
		      return r;
		    }
		  }
	  public RemoteDevice[] cachedDevs() {
		    RemoteDevice[] r = agent.retrieveDevices(DiscoveryAgent.CACHED);
		    if( r == null )
		      r = new RemoteDevice[0];
 
		    return r;
		  }
	  public RemoteDevice[] preknownDevs() {
		    RemoteDevice[] r = agent.retrieveDevices(DiscoveryAgent.PREKNOWN);
		    if( r == null )
		      r = new RemoteDevice[0];
 
		    return r;
		  }
	  public RemoteDevice[] lastDevs() {
		    RemoteDevice[] devs = new RemoteDevice[ old_devices.size() ];
		    old_devices.copyInto(devs);
 
		    return devs;
		  }
 
	  public RemoteDevice[] scanDevs() {
		    devices.removeAllElements();
 
		    try {
		      agent.startInquiry(DiscoveryAgent.GIAC, this);
 
		      synchronized(this) {
		        this.wait();
		      }
		    } catch(InterruptedException ie) {
		      ie.printStackTrace();
		    } catch(BluetoothStateException bse) {
		      bse.printStackTrace();
		    }
 
		    RemoteDevice[] devs = new RemoteDevice[ devices.size() ];
		    devices.copyInto(devs);
 
		    Vector t = old_devices;
		    old_devices = devices;
		    devices = t;
 
		    last_scan = System.currentTimeMillis();
		    return devs;
		  }
 
	  public String deviceNames () {
		  String res = "";
 
		  RemoteDevice[] devs = scanDevs();
		  for (int i=0; i<devs.length; i++) {
			  try {
				res += "plus " + devs[i].getFriendlyName(true);
			} catch (IOException e) {
				e.printStackTrace();
			}
 
		  }
 
		  return res;
	  }
 
 
	protected void destroyApp(boolean arg0) throws MIDletStateChangeException {
		// TODO Auto-generated method stub
 
	}
 
	protected void pauseApp() {
		// TODO Auto-generated method stub
 
	}
 
	protected void startApp() throws MIDletStateChangeException {
 
		_display = Display.getDisplay(this);
	    form1 = new Form("Bluetooth Devices Detection");
	    detecter = new Command("detection", Command.OK, 0);
	    form1.addCommand(detecter);
	    form1.setCommandListener(this);
        _display.setCurrent(form1);
	}
 
	public void commandAction(Command arg0, Displayable arg1) {
        if (screenSearch == null) {
            // write pre-init user code here
            screenSearch = new List("Perif Bluetooth", Choice.IMPLICIT);
 
 
			RemoteDevice[] devs = scanDevs();
 
			for (int i=0; i<devs.length; i++) {
				try {
 
					screenSearch.append(devs[i].getFriendlyName(true), null);
 
				} 
 
				catch (IOException e) {
					e.printStackTrace();
				}
				catch (Exception e) { 
					e.printStackTrace(); 
				}
 
			}
 
			 _display.setCurrent(screenSearch);
 
			 //	check for spp service
 
			    RemoteDevice remoteDevice=devs[0];
 
		        UUID[] uuidSet = new UUID[1];
		        uuidSet[0]=new UUID("1101",false);
		        int[] attrSet = {0x0100, 0x0003, 0x0004};
		       try {
					agent.searchServices(attrSet,uuidSet,remoteDevice, this);
 
				} catch (BluetoothStateException e1) {
 
					e1.printStackTrace();
				}
 
		        try {
		            synchronized(this){
		                this.wait();
		            }
		        }
		        catch (InterruptedException e) {
		            e.printStackTrace();
		        }
 
		        // affichage URL.
		         //screenSearch.append("suis la "+ connectionURL, null);
	            /*
		        //connect to the server and send a line of text
		        try{
		        StreamConnection streamConnection=(StreamConnection)Connector.open(connectionURL);
 
		        //send string
		        OutputStream outStream=streamConnection.openOutputStream();
 
		        OutputStreamWriter pWriter= new OutputStreamWriter(outStream);
		        pWriter.write("Test String from SPP Client\r\n");
		        pWriter.flush();
		        }catch(Exception e){
 
		         }
 
		        //read response
		        //InputStream inStream=streamConnection.openInputStream();
		        //BufferedReader bReader2=new BufferedReader(new InputStreamReader(inStream));
		        //String lineRead=bReader2.readLine();
 
		         */
        }
 
	}
 
	public void deviceDiscovered(RemoteDevice dev, DeviceClass cod) {
		// TODO Auto-generated method stub
		devices.addElement(dev);
	}
 
	public void inquiryCompleted(int arg0) {
		// TODO Auto-generated method stub
		 synchronized(this) {
		      this.notifyAll();
		    }
	}
 
	public void serviceSearchCompleted(int arg0, int arg1) {
 
		synchronized(this){
			this.notify();
        }
 
	}
 
	public void servicesDiscovered(int arg0, ServiceRecord[] servRecord) {
		screenSearch.append("suis la servicesDiscovered", null);
		if(servRecord!=null && servRecord.length>0){
            connectionURL=servRecord[0].getConnectionURL(0,false);
 
        }
        synchronized(this){
        	this.notify();
        }
 
	}
 
	private boolean array_contains(Object[] array, Object o) {
	    if(array == null)
	      return false;
 
	    for(int i=0; i<array.length; i++) {
	      if( array[i].equals(o) )
	        return true;
	    }
 
	    return false;
	  }
 
	  private void array_copy_unique(Object[] arr1, Object[] arr2) 
	    throws NullPointerException {
 
	    if(arr1 == null || arr2 == null)
	      return;
 
	    int len1 = arr1.length;
	    int len2 = arr2.length;
 
	    int arr2_i;
	    for(arr2_i=0; arr2_i < arr2.length; arr2_i++) {
	      if(arr2[arr2_i] != null)
	        break;
	    }
 
	    for(int arr1_i=0; arr1_i<arr1.length; arr1_i++, arr2_i++) {
	      if(!array_contains(arr2, arr1[arr1_i]))
	        arr2[arr2_i] = arr1[arr1_i];
	    }
	  }
}

Serveur :

Code :

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package ma.emsi.discover;
 
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
 
import javax.bluetooth.*;
import javax.microedition.io.*;
 
 
public class SampleSPPServer {
 
    //start server
    private void startServer() throws IOException{
 
        //Create a UUID for SPP
        UUID uuid = new UUID("1101", true);
        //Create the servicve url
        String connectionString = "btspp://localhost:" + uuid +";name=Sample SPP Server";
 
        //open server url
        StreamConnectionNotifier streamConnNotifier = (StreamConnectionNotifier)Connector.open( connectionString );
 
        //Wait for client connection
        System.out.println("\nServer Started. Waiting for clients to connect...");
        StreamConnection connection=streamConnNotifier.acceptAndOpen();
 
        RemoteDevice dev = RemoteDevice.getRemoteDevice(connection);
        System.out.println("Remote device address: "+dev.getBluetoothAddress());
        System.out.println("Remote device name: "+dev.getFriendlyName(true));
 
        //read string from spp client
        InputStream inStream=connection.openInputStream();
        BufferedReader bReader=new BufferedReader(new InputStreamReader(inStream));
        String lineRead=bReader.readLine();
        System.out.println(lineRead);
 
        //send response to spp client
        OutputStream outStream=connection.openOutputStream();
        PrintWriter pWriter=new PrintWriter(new OutputStreamWriter(outStream));
        pWriter.write("Response String from SPP Server\r\n");
        pWriter.flush();
 
        pWriter.close();
        streamConnNotifier.close();
 
    }
 
 
    public static void main(String[] args) throws IOException {
 
        //display local device address and name
        LocalDevice localDevice = LocalDevice.getLocalDevice();
        System.out.println("Address: "+localDevice.getBluetoothAddress());
        System.out.println("Name: "+localDevice.getFriendlyName());
 
        SampleSPPServer sampleSPPServer=new SampleSPPServer();
        sampleSPPServer.startServer();
    }
}

Merci d'avance

**never-land0** · 08/09/2008, 01h07

moi aussije fait la méme chose que toi mais moi je dois récupéré les donné depuis une module GPS connécté au PDA via bleutooth alors je sais pas comment faire est ce que le code que ta présenté ici peu m étre utile stp

Détection de service Bluetooth sur un serveur

Java ME

Vue hybride

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