Java程序中 Swing调用JavaFX，实现内嵌Web浏览器

如果从Java程序中调用JavaFX,没有办法结束JavaFX的主线程，只能执行一次，多次从Java中调用JavaFX，会报主线程只能有一个。

所以，我们可以用Java自带的图形化界面Swing，通过Swing去调用JavaFX

// 引入JavaFX的jar包
<dependency>
    <groupId>org.openjfx</groupId>
    <artifactId>javafx-controls</artifactId>
    <version>17.0.2</version>
</dependency>

上代码

public class javaTest {
    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable(){
            @Override
            public void run() {
                initAndShowGUI();
            }
        });
    }

    private static void initAndShowGUI() {
        JFrame frame = new JFrame("Swing and JavaFX");
        final JFXPanel fxPanel = new JFXPanel();
        frame.add(fxPanel);
        frame.setSize(300,200);
        frame.setVisible(true);
        frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
        Platform.runLater(new Runnable(){
            @Override
            public void run() {
                try {
                    initFx(fxPanel);
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
        });
    }

    private static void initFx(JFXPanel fxPanel) throws IOException {
        Scene scene = createScene();
        fxPanel.setScene(scene);
    }

    private static Scene createScene() throws FileNotFoundException {
        Group root = new Group();
        Scene scene = new Scene(root, Color.ALICEBLUE);
		// Swing调用JavaFX中的WebView组件
        WebView browser = new WebView();
        WebEngine webEngine = browser.getEngine();
        webEngine.load("file:///D:/JavaFX.html");
        root.getChildren().add(browser);
        return scene;
    }
}