虽然现在已经很少项目会涉及GUI技术，但作为一个合格的Java开发工程师，还是得了解才得

本文记录，idea使用JFormDesigner插件进行Java GUI 桌面应用开发

GUI Swing

图形化的用户界面（Graphical User Interface，简称GUI），java提供了一套可以轻松构建GUI的工具

GUI开发包：
java.awt 包： 主要提供字体/布局管理器
javax.swing 包：主要提供各种组件(窗口/按钮/文本框)，商业开发常用
java.awt.event 包：事件处理，后台功能的实现

Swing组件

相对于AWT而言Swing包中提供了更多的丰富的、快捷的、强大的GUI组件

大体上包括以下内容：window顶层容器（窗口）、container中间容器（面板）、component基本组件（按钮、标签等）

JFormDesigner

JFormDesigner，高级Swing GUI设计器，支持MigLayout, JGoodies FormLayout, GroupLayout(自由设计)，TableLayout和GridBagLayout，这使得它很容易创建专业外观的表单。

通俗的讲就是使用这个插件进行拖拉布局，快速创建页面，但是这个插件需要购买许可才能使用

破解教程：https://www.cnblogs.com/ylkh/p/13858433.html

1、打开注册机JFormDesigner_Keygen.exe，选择idea plug-in,里面的可以随便填
2、点击Patch,选择已安装的插件,生成bak文件（插件位置idea安装路径\plugins\FormDesigner\）
3、点击generate生成JFormDesigner_license.txt文件

创建图形页面，插件会自动同步生成java文件

6、关闭当前页面：this.dispose(); //退出当前界面

7、代码弹出对话框：JOptionPane.showMessageDialog(null, "恭喜哦，登录成功！");// Message 对话框

生成的java文件

* Created by JFormDesigner on Tue Dec 28 15:24:42 CST 2021 package cn.huanzi.qch.view; import java.awt.* ; import java.awt.event.* ; import javax.swing.* ; public class TestFrame extends javax.swing.JFrame{ public TestFrame() { initComponents(); setVisible( true ); // 显示 setLocationRelativeTo( null ); // JFrame 窗口居中显示 public static void main(String[] args) { java.awt.EventQueue.invokeLater(() -> { new TestFrame(); System.out.println( "启动成功！" ); private void SubmitActionPerformed(ActionEvent e) { // TODO add your code here System.out.println("---------------------------" ); System.out.println( "姓名："+ userNameTestField.getText()); String sex = "" ; if (xyRadioButton.isSelected()) { sex = "男" ; } else if (xxRadioButton.isSelected()) { sex = "女" ; } else if (yyRadioButton.isSelected()) { sex = "不确定" ; System.out.println( "性别："+ sex); String hobby = "" ; if (singCheckBox.isSelected()) { hobby += "唱、" ; if (skipCheckBox.isSelected()) { hobby += "跳、" ; if (rapCheckBox.isSelected()) { hobby += "rap、" ; System.out.println( "爱好："+ hobby); System.out.println( "自我评价："+ selfTextArea.getText()); private void initComponents() { // JFormDesigner - Component initialization - DO NOT MODIFY // GEN-BEGIN:initComponents label1 = new JLabel(); userNameTestField = new JTextField(); label2 = new JLabel(); label3 = new JLabel(); submit = new JButton(); reset = new JButton(); xxRadioButton = new JRadioButton(); xyRadioButton = new JRadioButton(); yyRadioButton = new JRadioButton(); scrollPane1 = new JScrollPane(); selfTextArea = new JTextArea(); label4 = new JLabel(); label5 = new JLabel(); singCheckBox = new JCheckBox(); skipCheckBox = new JCheckBox(); rapCheckBox = new JCheckBox(); // ======== this ======== setBackground(Color.gray); setTitle( "Test GUI" ); setForeground(SystemColor.windowText); setMinimumSize( new Dimension(300, 200 )); setResizable( false ); setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); Container contentPane = getContentPane(); contentPane.setLayout( null ); // ---- label1 ---- label1.setText("\u59d3\u540d\uff1a" ); contentPane.add(label1); label1.setBounds( 34, 55, 65, 30 ); contentPane.add(userNameTestField); userNameTestField.setBounds( 119, 55, 200 , userNameTestField.getPreferredSize().height); // ---- label2 ---- label2.setText("\u6027\u522b\uff1a" ); contentPane.add(label2); label2.setBounds( 34, 95, 65, 30 ); // ---- label3 ---- label3.setText("\u81ea\u6211\u8bc4\u4ef7\uff1a" ); contentPane.add(label3); label3.setBounds( 34, 165, 65, 30 ); // ---- submit ---- submit.setText("\u63d0\u4ea4" ); submit.addActionListener(e -> SubmitActionPerformed(e)); contentPane.add(submit); submit.setBounds( new Rectangle( new Point(64, 271 ), submit.getPreferredSize())); // ---- reset ---- reset.setText("\u91cd\u7f6e" ); contentPane.add(reset); reset.setBounds( new Rectangle( new Point(219, 271 ), reset.getPreferredSize())); // ---- xxRadioButton ---- xxRadioButton.setText("\u5973" ); contentPane.add(xxRadioButton); xxRadioButton.setBounds( new Rectangle( new Point(184, 100 ), xxRadioButton.getPreferredSize())); // ---- xyRadioButton ---- xyRadioButton.setText("\u7537" ); contentPane.add(xyRadioButton); xyRadioButton.setBounds( new Rectangle( new Point(129, 100 ), xyRadioButton.getPreferredSize())); // ---- yyRadioButton ---- yyRadioButton.setText("\u4e0d\u786e\u5b9a" ); contentPane.add(yyRadioButton); yyRadioButton.setBounds( new Rectangle( new Point(239, 100 ), yyRadioButton.getPreferredSize())); // ======== scrollPane1 ======== scrollPane1.setViewportView(selfTextArea); contentPane.add(scrollPane1); scrollPane1.setBounds(117, 165, 202, 71 ); // ---- label4 ---- label4.setText("\u6d4b\u8bd5\u8868\u5355" ); label4.setFont(label4.getFont().deriveFont(22f)); contentPane.add(label4); label4.setBounds( 124, 0, 100, 45 ); // ---- label5 ---- label5.setText("\u7231\u597d\uff1a" ); contentPane.add(label5); label5.setBounds( 34, 130, 65, 30 ); // ---- singCheckBox ---- singCheckBox.setText("\u5531" ); contentPane.add(singCheckBox); singCheckBox.setBounds( new Rectangle( new Point(129, 135 ), singCheckBox.getPreferredSize())); // ---- skipCheckBox ---- skipCheckBox.setText("\u8df3" ); contentPane.add(skipCheckBox); skipCheckBox.setBounds( new Rectangle( new Point(184, 135 ), skipCheckBox.getPreferredSize())); // ---- rapCheckBox ---- rapCheckBox.setText("rap" ); contentPane.add(rapCheckBox); rapCheckBox.setBounds( 239, 135, 50 , rapCheckBox.getPreferredSize().height); // compute preferred size Dimension preferredSize = new Dimension(); for ( int i = 0; i < contentPane.getComponentCount(); i++ ) { Rectangle bounds = contentPane.getComponent(i).getBounds(); preferredSize.width = Math.max(bounds.x + bounds.width, preferredSize.width); preferredSize.height = Math.max(bounds.y + bounds.height, preferredSize.height); Insets insets = contentPane.getInsets(); preferredSize.width += insets.right; preferredSize.height += insets.bottom; contentPane.setMinimumSize(preferredSize); contentPane.setPreferredSize(preferredSize); setSize( 400, 365 ); setLocationRelativeTo( null ); // ---- buttonGroup2 ---- ButtonGroup buttonGroup2 = new ButtonGroup(); buttonGroup2.add(xxRadioButton); buttonGroup2.add(xyRadioButton); buttonGroup2.add(yyRadioButton); // JFormDesigner - End of component initialization // GEN-END:initComponents // JFormDesigner - Variables declaration - DO NOT MODIFY // GEN-BEGIN:variables private JLabel label1; private JTextField userNameTestField; private JLabel label2; private JLabel label3; private JButton submit; private JButton reset; private JRadioButton xxRadioButton; private JRadioButton xyRadioButton; private JRadioButton yyRadioButton; private JScrollPane scrollPane1; private JTextArea selfTextArea; private JLabel label4; private JLabel label5; private JCheckBox singCheckBox; private JCheckBox skipCheckBox; private JCheckBox rapCheckBox; // JFormDesigner - End of variables declaration // GEN-END:variables

JavaFX

2022-01-27更新

JavaFX是一个强大的图形和多媒体处理工具包集合，它允许开发者来设计、创建、测试、调试和部署富客户端程序，并且和Java一样跨平台。JavaFX比Swing更简单、更强大！

中文文档：http://www.javafxchina.net/blog/docs/

import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;
public class MyApp extends Application {
    @Override
    public void start(Stage primaryStage) {
        Button btn = new Button();
        btn.setText("Say 'Hello World'");
        btn.setOnAction(new EventHandler<ActionEvent>() {
            @Override
            public void handle(ActionEvent event) {
                System.out.println("Hello World!");
        StackPane root = new StackPane();
        root.getChildren().add(btn);
        Scene scene =  new Scene(root, 300, 250);
        primaryStage.setTitle("Hello World!");
        primaryStage.setScene(scene);
        primaryStage.show();
    public static void main(String[] args) {
        launch(args);