import com.sun.deploy.uitoolkit.impl.fx.HostServicesFactory; //导入依赖的package包/类
public void checkVersion() {
	final Optional<String> versionXML = getVersionXML(SHOOTOFF_DOMAIN + VERSION_METADATA_NAME);

	if (versionXML.isPresent()) {
		final Optional<String> stableVersion = parseField(versionXML.get(), "stableRelease", "version");

		if (stableVersion.isPresent() && VersionChecker.compareVersions(stableVersion.get(), version.get()) > 0) {
			final Optional<String> downloadLink = parseField(versionXML.get(), "stableRelease", "download");

			final String link;

			if (downloadLink.isPresent())
				link = downloadLink.get();
			else
				link = SHOOTOFF_DOMAIN;

			final Alert shootoffWelcome = new Alert(AlertType.INFORMATION);
			shootoffWelcome.setTitle("ShootOFF Updated");
			shootoffWelcome.setHeaderText("This version of ShootOFF is outdated!");
			shootoffWelcome.setResizable(true);

			final FlowPane fp = new FlowPane();
			final Label lbl = new Label(
					"The current stable release of ShootOFF is " + stableVersion.get() + ", but you are running "
							+ version.get() + ". " + "You can download the current version of ShootOFF here:\n\n");

			final Hyperlink lnk = new Hyperlink(link);

			lnk.setOnAction((event) -> {
				final HostServicesDelegate hostServices = HostServicesFactory.getInstance(this);
				hostServices.showDocument(link);
				lnk.setVisited(true);
			});

			fp.getChildren().addAll(lbl, lnk);

			shootoffWelcome.getDialogPane().contentProperty().set(fp);
			shootoffWelcome.showAndWait();
		} else if (stableVersion.isPresent() && stableVersion.get().compareTo(version.get()) < 0) {
			logger.warn("Future version of ShootOFF? stableVersion = {}, this.version = {}", stableVersion.get(),
					version.get());
		} else {
			logger.debug("ShootOFF is up to date");
		}
	}
}
 

import com.sun.deploy.uitoolkit.impl.fx.HostServicesFactory; //导入依赖的package包/类
/**
 * JavaFX start method.
 *
 * @param primaryStage Supplied by system
 */
@Override
public void start(Stage primaryStage) {
	buildNative();

	host = HostServicesFactory.getInstance(this);

	primaryStage.setTitle("TruffleHog");
	presenter = new Presenter(primaryStage);
	presenter.run();
}
 

import com.sun.deploy.uitoolkit.impl.fx.HostServicesFactory; //导入依赖的package包/类
protected void openUrl(String url) {
    HostServicesDelegate hostServices = HostServicesFactory.getInstance(this);
    getHostServices().showDocument(url);
}
 

import com.sun.deploy.uitoolkit.impl.fx.HostServicesFactory; //导入依赖的package包/类
void openInBrowser(String url) {
    HostServicesDelegate hostServices = HostServicesFactory.getInstance(this);
    hostServices.showDocument(url);
}
 

import com.sun.deploy.uitoolkit.impl.fx.HostServicesFactory; //导入依赖的package包/类
private void openBlockExplorer(WalletTransaction item) {
    HostServicesDelegate hostServices = HostServicesFactory.getInstance(CATE.getInstance());
    hostServices.showDocument(BlockExplorerResolver.getUrl(item));
}