Bonjour,
J'essaye de me servir de cette class mais je ni arrive pas. Je ne sais pas comment l’intégrer dans mon projet. J'ai bien le fichier map.html, j'ai mon api key et la class MapEvent.
Code : Sélectionner tout - Visualiser dans une fenêtre à part
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public class GoogleMap extends Parent {
 
    public GoogleMap() {
        initMap();
        initCommunication();
        getChildren().add(webView);
        setMarkerPosition(0,0);
        setMapCenter(0, 0);
        switchTerrain();
}
 
    private void initMap()
    {
        webView = new WebView();
        webEngine = webView.getEngine();
        webEngine.load(getClass().getResource("resources/map.html").toExternalForm());
        ready = false;
        webEngine.getLoadWorker().stateProperty().addListener(new ChangeListener<Worker.State>()
        {
            @Override
            public void changed(final ObservableValue<? extends Worker.State> observableValue,
                                final Worker.State oldState,
                                final Worker.State newState)
            {
                if (newState == Worker.State.SUCCEEDED)
                {
                    ready = true;
                }
            }
        });
    }
 
    private void initCommunication() {
        webEngine.getLoadWorker().stateProperty().addListener(new ChangeListener<Worker.State>()
        {
            @Override
            public void changed(final ObservableValue<? extends Worker.State> observableValue,
                                final Worker.State oldState,
                                final Worker.State newState)
            {
                if (newState == Worker.State.SUCCEEDED)
                {
                    doc = (JSObject) webEngine.executeScript("window");
                    doc.setMember("app", GoogleMap.this);
                }
            }
        });
    }
 
    private void invokeJS(final String str) {
        if(ready) {
            doc.eval(str);
        }
        else {
            webEngine.getLoadWorker().stateProperty().addListener(new ChangeListener<Worker.State>()
            {
                @Override
                public void changed(final ObservableValue<? extends Worker.State> observableValue,
                                    final Worker.State oldState,
                                    final Worker.State newState)
                {
                    if (newState == Worker.State.SUCCEEDED)
                    {
                        doc.eval(str);
                    }
                }
            });
        }
    }
 
    public void setOnMapLatLngChanged(EventHandler<MapEvent> eventHandler) {
        onMapLatLngChanged = eventHandler;
    }
 
    public void handle(double lat, double lng) {
        if(onMapLatLngChanged != null) {
            MapEvent event = new MapEvent(this, lat, lng);
            onMapLatLngChanged.handle(event);
        }
    }
 
    public void setMarkerPosition(double lat, double lng) {
        String sLat = Double.toString(lat);
        String sLng = Double.toString(lng);
        invokeJS("setMarkerPosition(" + sLat + ", " + sLng + ")");
    }
 
    public void setMapCenter(double lat, double lng) {
        String sLat = Double.toString(lat);
        String sLng = Double.toString(lng);
        invokeJS("setMapCenter(" + sLat + ", " + sLng + ")");
    }
 
    public void switchSatellite() {
        invokeJS("switchSatellite()");
    }
 
    public void switchRoadmap() {
        invokeJS("switchRoadmap()");
    }
 
    public void switchHybrid() {
        invokeJS("switchHybrid()");
    }
 
    public void switchTerrain() {
        invokeJS("switchTerrain()");
    }
 
    public void startJumping() {
        invokeJS("startJumping()");
    }
 
    public void stopJumping() {
        invokeJS("stopJumping()");
    }
 
    public void setHeight(double h) {
        webView.setPrefHeight(h);
    }
 
    public void setWidth(double w) {
        webView.setPrefWidth(w);
    }
 
    public ReadOnlyDoubleProperty widthProperty() {
        return webView.widthProperty();
    }
 
    private JSObject doc;
    private EventHandler<MapEvent> onMapLatLngChanged;
    private WebView webView;
    private WebEngine webEngine;
    private boolean ready;
}
Voici la class de mon projet.
Code : Sélectionner tout - Visualiser dans une fenêtre à part
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    public SimpleSwingBrowser() {
        super();
        initComponents();
    }
 
 
    private void initComponents() {
        createScene();
 
        ActionListener al = new ActionListener() {
            @Override 
            public void actionPerformed(ActionEvent e) {
                loadURL(txtURL.getText());
            }
        };
 
        btnGo.addActionListener(al);
        txtURL.addActionListener(al);
 
        progressBar.setPreferredSize(new Dimension(150, 18));
        progressBar.setStringPainted(true);
 
        JPanel topBar = new JPanel(new BorderLayout(5, 0));
        topBar.setBorder(BorderFactory.createEmptyBorder(3, 5, 3, 5));
        topBar.add(txtURL, BorderLayout.CENTER);
        topBar.add(btnGo, BorderLayout.EAST);
 
        JPanel statusBar = new JPanel(new BorderLayout(5, 0));
        statusBar.setBorder(BorderFactory.createEmptyBorder(3, 5, 3, 5));
        statusBar.add(lblStatus, BorderLayout.CENTER);
        statusBar.add(progressBar, BorderLayout.EAST);
 
        panel.add(topBar, BorderLayout.NORTH);
        panel.add(jfxPanel, BorderLayout.CENTER);
        panel.add(statusBar, BorderLayout.SOUTH);
 
        getContentPane().add(panel);
 
        setPreferredSize(new Dimension(1024, 600));
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        pack();
 
    }
 
    private void createScene() {
 
        Platform.runLater(new Runnable() {
            @Override 
            public void run() {
 
                WebView view = new WebView();
                engine = view.getEngine();
 
                engine.titleProperty().addListener(new ChangeListener<String>() {
                    @Override
                    public void changed(ObservableValue<? extends String> observable, String oldValue, final String newValue) {
                        SwingUtilities.invokeLater(new Runnable() {
                            @Override 
                            public void run() {
                                SimpleSwingBrowser.this.setTitle(newValue);
                            }
                        });
                    }
                });
 
                engine.setOnStatusChanged(new EventHandler<WebEvent<String>>() {
                    @Override 
                    public void handle(final WebEvent<String> event) {
                        SwingUtilities.invokeLater(new Runnable() {
                            @Override 
                            public void run() {
                                lblStatus.setText(event.getData());
                            }
                        });
                    }
                });
 
                engine.locationProperty().addListener(new ChangeListener<String>() {
                    @Override
                    public void changed(ObservableValue<? extends String> ov, String oldValue, final String newValue) {
                        SwingUtilities.invokeLater(new Runnable() {
                            @Override 
                            public void run() {
                                txtURL.setText(newValue);
                            }
                        });
                    }
                });
 
                engine.getLoadWorker().workDoneProperty().addListener(new ChangeListener<Number>() {
                    @Override
                    public void changed(ObservableValue<? extends Number> observableValue, Number oldValue, final Number newValue) {
                        SwingUtilities.invokeLater(new Runnable() {
                            @Override 
                            public void run() {
                                progressBar.setValue(newValue.intValue());
                            }
                        });
                    }
                });
 
                engine.getLoadWorker()
                        .exceptionProperty()
                        .addListener(new ChangeListener<Throwable>() {
 
                            public void changed(ObservableValue<? extends Throwable> o, Throwable old, final Throwable value) {
                                if (engine.getLoadWorker().getState() == FAILED) {
                                    SwingUtilities.invokeLater(new Runnable() {
                                        @Override public void run() {
                                            JOptionPane.showMessageDialog(
                                                    panel,
                                                    (value != null) ?
                                                    engine.getLocation() + "\n" + value.getMessage() :
                                                    engine.getLocation() + "\nUnexpected error.",
                                                    "Loading error...",
                                                    JOptionPane.ERROR_MESSAGE);
                                        }
                                    });
                                }
                            }
                        });
 
                jfxPanel.setScene(new Scene(view));
            }
        });
    }
 
    public void loadURL(final String url) {
        Platform.runLater(new Runnable() {
            @Override 
            public void run() {
                String tmp = toURL(url);
 
                if (tmp == null) {
                    tmp = toURL("http://" + url);
                }
 
                engine.load(tmp);
            }
        });
    }
 
    private static String toURL(String str) {
        try {
            return new URL(str).toExternalForm();
        } catch (MalformedURLException exception) {
                return null;
        }
    }
 
 
 
    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
 
            public void run() {
                SimpleSwingBrowser browser = new SimpleSwingBrowser();
                browser.setVisible(true);
                browser.loadURL("http://maps.google.com/");
           }     
       });
    }
}