GPS http://darylrobotproject.wordpress.com/

package com.daryl.gps;

import gnu.io.CommPortIdentifier;
import gnu.io.NoSuchPortException;
import gnu.io.PortInUseException;
import gnu.io.SerialPort;
import gnu.io.SerialPortEvent;
import gnu.io.SerialPortEventListener;
import gnu.io.UnsupportedCommOperationException;
import java.util.*;
import java.io.*;

import com.daryl.utils.Nmea;

public class Gps implements SerialPortEventListener {

    private CommPortIdentifier portID = null; //Identifiant du port
    private SerialPort serialPort; //Le port série
    private BufferedReader fluxLecture; //Flux de lecture du port

    /*
     * Méthode qui initialise le port série
     */
    public void ModeEvenement(String portCOM) {

        //Récupération de l'identifiant du port
        try {
            portID = CommPortIdentifier.getPortIdentifier(portCOM);
        } catch (NoSuchPortException e) {System.out.println("NoSuchPortException: " + e.toString());}

        //Ouverture du port
        try {
            serialPort = (SerialPort) portID.open("ModeEvenement", 2000);
        } catch (PortInUseException e) {System.out.println("PortInUseException: " + e.toString());}

        //Récupération du flux
        try {
            fluxLecture = new BufferedReader(new InputStreamReader(serialPort.getInputStream()));
        } catch (IOException e) {System.out.println("IOException: " + e.toString());}

        //Ajout du listener
        try {
            serialPort.addEventListener(this);
        } catch (TooManyListenersException e) {System.out.println("TooManyListenersException: " + e.toString());}

        //Paramétrage du port
        serialPort.notifyOnDataAvailable(true);

        try {
            serialPort.setSerialPortParams(9600,SerialPort.DATABITS_8,SerialPort.STOPBITS_1,SerialPort.PARITY_NONE);
        } catch (UnsupportedCommOperationException e) {}

        System.out.println("Port GPS " + portID.getName() + " ouvert, en attente de lecture..." );
    }

    /*
     * Méthode qui effectue la lecture de la trame sur le port COM
     */
    public void ReadSerialPort(){

        String reponse = new String();

        try {

            //On lit la trame
            reponse = (String) fluxLecture.readLine();
            String liste[] = reponse.split(",");

            if (liste[0].equals("$GPGGA")){

                // Si pas de fix GPS
                if(liste[6].equals("0")) {

                    System.out.println("Pas de Fix Satellite...");

                } else { // Sinon on affiche les coordonnées

                    Nmea coordonne = new Nmea();
                    coordonne.parse(reponse);
                    //System.out.println(coordonne.parse(reponse));
                    System.out.println("Latitude: "+ liste[2]+" "+liste[3]+", Longitude: "+ liste[4]+" "+liste[5]);

                }

            }

        } catch (IOException e) {

            System.out.println("NMEA Error");
            //e.printStackTrace();

        }

        //fluxLecture.close();
        //serialPort.close();
    }

    public void serialEvent(SerialPortEvent event) {

        switch (event.getEventType()) {

        case SerialPortEvent.DATA_AVAILABLE :
            this.ReadSerialPort();
            break;
        default:
            break;
        }
    }

    /*
     * Methode qui scanne tous les ports COM et test si des données viennent du port COm scanné
     */
    @SuppressWarnings("rawtypes")
    public void listPort(){

        Enumeration listePorts = CommPortIdentifier.getPortIdentifiers();

        while (listePorts.hasMoreElements()){

            portID = (CommPortIdentifier) (CommPortIdentifier) listePorts.nextElement();
            if(portID.getPortType()==CommPortIdentifier.PORT_SERIAL){

                System.out.println("Nom du PORT COM :"+portID.getName());
                System.out.println("Type de PORT COM :"+portID.getPortType());

                if (portID.getName().equals("COM1")) {
                    this.ModeEvenement(portID.getName());
                }

            }
        }
    }

    public static void main(String[] args) {

        Gps test = new Gps();
        test.listPort();

    }
}