如何在Java 9中使用JavaFX和HTTP/2来实现高性能Web应用程序

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;

public class JavaFXApplication extends Application {

    @Override
    public void start(Stage primaryStage) {
        Button button = new Button("Click Me");
        StackPane root = new StackPane();
        root.getChildren().add(button);

        Scene scene = new Scene(root, 300, 250);

        primaryStage.setTitle("JavaFX Application");
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }
}

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URI;
import java.net.URL;

public class HTTP2Example {

    public static void main(String[] args) {
        try {
            URL url = new URL("https://example.com/api/data");
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            connection.setRequestMethod("GET");

            // 检查HTTP/2是否可用
            if (connection instanceof sun.net.www.protocol.http.HttpURLConnection) {
                sun.net.www.protocol.http.HttpURLConnection http2Connection = (sun.net.www.protocol.http.HttpURLConnection) connection;
                if (http2Connection.supportsHTTP2()) {
                    http2Connection.setUseHTTP2(true);
                }
            }

            // 发送请求
            connection.connect();

            // 获取响应
            int responseCode = connection.getResponseCode();
            if (responseCode == HttpURLConnection.HTTP_OK) {
                InputStream inputStream = connection.getInputStream();
                BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
                String line;
                StringBuffer response = new StringBuffer();
                while ((line = reader.readLine()) != null) {
                    response.append(line);
                }
                reader.close();

                // 处理响应数据
                System.out.println("Response: " + response.toString());
            }
            connection.disconnect();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}