我已经将JFXPanel附加到JFrame并试图显示oracle站点。 Jframe的尺寸受到限制，因此显示了滚动条，而不是要滚动的站点，我需要使用滚动条或鼠标滚轮，这表明鼠标拖动或tuoch滚动不受管理。 在我的应用程序的源代码下方（从javafx oracle教程站点复制）
import javafx.application.Platform;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.embed.swing.JFXPanel;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.web.WebEngine;
import javafx.scene.web.WebEvent;
import javafx.scene.web.WebView;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.net.MalformedURLException;
import java.net.URL;
import static javafx.concurrent.Worker.State.FAILED;
public class SimpleSwingBrowser extends JFrame {
private final JFXPanel jfxPanel = new JFXPanel();
private WebEngine engine;
private final JPanel panel = new JPanel(new BorderLayout());
private final JLabel lblStatus = new JLabel();
private final JButton btnGo = new JButton("Go");
private final JTextField txtURL = new JTextField();
private final JProgressBar progressBar = new JProgressBar();
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://oracle.com");
}
});
}
}
如果相反，我将webviev放到了一个应用程序中，而没有使用JFXPanel触摸滚动和鼠标拖动即可完美工作。下面的代码也来自javafx orcle教程：
import javafx.application.*;
import javafx.geometry.HPos;
import javafx.geometry.VPos;
import javafx.scene.Node;
import javafx.scene.Scene;
import javafx.scene.layout.HBox;
import javafx.scene.layout.Priority;
import javafx.scene.layout.Region;
import javafx.scene.paint.Color;
import javafx.scene.web.WebEngine;
import javafx.scene.web.WebView;
import javafx.stage.Stage;
public class WebViewSample extends Application {
private Scene scene;
@Override public void start(Stage stage) {
// create the scene
stage.setTitle("Web View");
Platform.runLater(new Runnable() {
@Override
public void run() {
scene = new Scene(new Browser(),900,600, Color.web("#666970"));
stage.setScene(scene);
}});
// scene.getStylesheets().add("webviewsample/BrowserToolbar.css");
stage.show();
}
public static void main(String[] args){
launch(args);
}
}
class Browser extends Region {
final WebView browser = new WebView();
final WebEngine webEngine = browser.getEngine();
public Browser() {
//apply the styles
getStyleClass().add("browser");
// load the web page
webEngine.load("http://www.oracle.com/products/index.html");
//add the web view to the scene
getChildren().add(browser);
}
private Node createSpacer() {
Region spacer = new Region();
HBox.setHgrow(spacer, Priority.ALWAYS);
return spacer;
}
@Override protected void layoutChildren() {
double w = getWidth();
double h = getHeight();
layoutInArea(browser,0,0,w,h,0, HPos.CENTER, VPos.CENTER);
}
@Override protected double computePrefWidth(double height) {
return 900;
}
@Override protected double computePrefHeight(double width) {
return 600;
}
}
有人可以告诉我我是否想念东西吗？
答案 0 :(得分：0)
对于每个有相同问题的人，这是我向oracle报告的JavaFx问题，应在openjdk12中修复。 该错误的链接下方： https://bugs.java.com/bugdatabase/view_bug.do?bug_id=JDK-8213733