2020.07.11第六次java实训
这次实训我们要开始做窗口界面了，这个要比之前只要代码看起来要好玩一点了。
首先我们要创建应用程序类1、创建主界面窗口MainFrame
运行结构如下:2、创建用户登录窗口LoginFrame
运行结果如下：3、创建用户注册窗口RegisterFrame

package net.czy.student.gui;

import net.czy.student.app.Application;
import net.czy.student.bean.User;
import net.czy.student.service.UserService;
import net.czy.student.service.impl.UserServiceImpl;

import javax.swing.;
import java.awt.;
import java.awt.event.*;
import java.sql.Timestamp;
import java.util.Date;

/**

• 功能：注册窗口

• 作者：车昭勇

• 日期：2020年07月11日
  */
  public class RegisterFrame extends JFrame {
  private JLabel lblUsername;
  private JLabel lblPassword;
  private JLabel lblTelephone;

  private JTextField txtUsername;
  private JTextField txtTelephon;
  private JPasswordField txtPassword;

  private JButton btnSubmit;
  private JButton btnCancel;
  private JButton btnLogin;

  private JPanel panel;
  private JPanel panel1;
  private JPanel panel2;
  private JPanel panel3;
  private JPanel panel4;

  private String username;
  private String password;
  private String telephone;
  private Date registerTime;

  public RegisterFrame(String title) {
  super(title);
  iniGUI();
  }

  private void iniGUI() {
  //创建组件（面板与控件）
  panel =(JPanel) getContentPane();
  panel1 = new JPanel();
  panel2 = new JPanel();
  panel3 = new JPanel();
  panel4 = new JPanel();

   lblUsername = new JLabel("用户名：");lblPassword = new JLabel("密    码：");lblTelephone = new JLabel("电   话");txtUsername = new JTextField(15);txtPassword = new JPasswordField(15);txtTelephon = new JTextField(15);btnSubmit = new JButton("提交[S]");btnCancel = new JButton("取消[C]");btnLogin = new JButton("登录[L]");//讲控件添加到四个小面板panel1.add(lblUsername);panel1.add(txtUsername);panel2.add(lblPassword);panel2.add(txtPassword);panel3.add(lblTelephone);panel3.add(txtTelephon);panel4.add(btnSubmit);panel4.add(btnCancel);panel4.add(btnLogin);//设置大面板布局，将四个小面板添加到大面板panel.setLayout(new GridLayout(4,1));panel.add(panel1);panel.add(panel2);panel.add(panel3);panel.add(panel4);//设置窗口大小setSize(250,200);//设置窗口屏幕居中setLocationRelativeTo(null);//设置窗口不可调整大小setResizable(false);//设置窗口刚好容纳组件pack();//设置窗口标题setTitle("用户注册");//设置窗口可见setVisible(true);//注册窗口监听器addWindowListener(new WindowAdapter() {@Overridepublic void windowClosing(WindowEvent e) {//卸载当前窗口——注册窗口dispose();//让登录窗口可见Application.loginFrame.setVisible(true);}});//【提交】按钮单击事件处理btnSubmit.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) {register();}});//【提交】按钮按键事件处理btnSubmit.addKeyListener(new KeyAdapter() {@Overridepublic void keyPressed(KeyEvent e) {if (e.getKeyCode() == KeyEvent.VK_ENTER) {register();}}});//【取消】按钮单击事件处理btnCancel.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) {//显示登陆窗口Application.loginFrame.setVisible(true);//卸载当前窗口dispose();}});//【用户名】文本框按键事件处理txtUsername.addKeyListener(new KeyAdapter() {@Overridepublic void keyPressed(KeyEvent e) {if (e.getKeyCode() == KeyEvent.VK_ENTER) {txtPassword.requestFocus();}}});//【密码】文本框按键事件处理txtPassword.addKeyListener(new KeyAdapter() {@Overridepublic void keyPressed(KeyEvent e) {if (e.getKeyCode() == 10) {txtTelephon.requestFocus();}}});//【电话】文本框按键事件处理txtTelephon.addKeyListener(new KeyAdapter() {@Overridepublic void keyPressed(KeyEvent e) {if (e.getKeyCode() == KeyEvent.VK_ENTER) {btnSubmit.requestFocus();}}});
  

  }

  private void register() {
  // 获取用户名
  username = txtUsername.getText().trim();
  // 获取密码
  password = new String(txtPassword.getPassword());
  // 获取电话
  telephone = txtTelephon.getText().trim();
  // 定义当前时间为注册时间
  registerTime = new Timestamp(System.currentTimeMillis());

   // 对用户名进行非空校验if (username.equals("")) {JOptionPane.showMessageDialog(null, "用户名不能为空！","学生信息管理系统", JOptionPane.WARNING_MESSAGE);txtUsername.requestFocus();return;}// 对密码进行非空校验if (password.equals("")) {JOptionPane.showMessageDialog(null, "密码不能为空！","学生信息管理系统", JOptionPane.WARNING_MESSAGE);txtPassword.requestFocus();return;}// 定义用户服务对象UserService userService = new UserServiceImpl();// 创建用户User user = new User();user.setUsername(username);user.setPassword(password);user.setTelephone(telephone);user.setRegisterTime(registerTime);// 添加用户int count = userService.addUser(user);// 判断是否添加成功if (count > 0) {setVisible(false);JOptionPane.showMessageDialog(null, "恭喜！注册成功！","学生信息管理系统", JOptionPane.INFORMATION_MESSAGE);setVisible(true);} else {JOptionPane.showMessageDialog(null, "遗憾！注册失败！","学生信息管理系统", JOptionPane.INFORMATION_MESSAGE);}
  

  }

  public static void main(String[] args) {
  Application.registerFrame = new RegisterFrame(“用户注册”);
  }
  }

运行结果如下：