以下是一个基本的JavaFX登录页面示例：

import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.PasswordField;
import javafx.scene.control.TextField;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.HBox;
import javafx.scene.paint.Color;
import javafx.scene.text.Font;
import javafx.scene.text.FontWeight;
import javafx.stage.Stage;public class LoginApp extends Application {@Overridepublic void start(Stage primaryStage) throws Exception {primaryStage.setTitle("JavaFX Login");BorderPane borderPane = new BorderPane();borderPane.setCenter(createGridPane());borderPane.setBottom(createBottom());Scene scene = new Scene(borderPane, 400, 200);primaryStage.setSc