Teilen Sie Beispielcode für eine Datenbank ohne Verbindung in JavaSwing

Projektstruktur:

　

Constant.java

package com.mstf.test;

import java.io.Serializable;

public class Constant implements Serializable {
	public static final long serialVersionUID = 1L;
	// 超链接
	public static final String URI1 = "第一个需要打开的网址";
	public static final String URI2 = "第二个需要打开的网址";
	// 帐号和密码
	public static final String userName = "admin";
	public static final String passWord = "123456";
}

Test.java

package com.mstf.test;

import java.awt.Desktop;
import java.awt.EventQueue;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.border.EmptyBorder;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JTextField;
import javax.swing.JButton;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.awt.event.ActionEvent;
import java.awt.Color;
import java.awt.Font;
import java.awt.Toolkit;

public class Test extends JFrame {

	private static final long serialVersionUID = 1L;
	private JPanel contentPane;
	private JTextField text_userName;
	private JTextField text_passWord;

	/**
	 * Launch the application.
	 */
	public static void main(String[] args) {
		EventQueue.invokeLater(new Runnable() {
			public void run() {
				try {
					Test frame = new Test();
					frame.setVisible(true);
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
		});
	}

	/**
	 * Create the frame.
	 */
	public Test() {
		setIconImage(Toolkit.getDefaultToolkit().getImage(Test.class.getResource("/images/favicon.png")));
		setTitle("雨落秋垣-后台登录");
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		setBounds(100, 100, 450, 300);
		contentPane = new JPanel();
		contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
		setContentPane(contentPane);
		contentPane.setLayout(null);

		JLabel labe_l1 = new JLabel("用户名：");
		labe_l1.setForeground(Color.RED);
		labe_l1.setBounds(86, 86, 54, 15);
		contentPane.add(labe_l1);

		JLabel label_2 = new JLabel("密  码：");
		label_2.setForeground(Color.RED);
		label_2.setBounds(86, 130, 54, 15);
		contentPane.add(label_2);

		text_userName = new JTextField();
		text_userName.setForeground(Color.DARK_GRAY);
		text_userName.setBounds(144, 83, 166, 21);
		contentPane.add(text_userName);
		text_userName.setColumns(10);

		text_passWord = new JPasswordField();
		text_passWord.setForeground(Color.DARK_GRAY);
		text_passWord.setBounds(145, 127, 165, 21);
		contentPane.add(text_passWord);
		text_passWord.setColumns(10);

		JButton login = new JButton("登录后台");
		login.setForeground(Color.RED);
		login.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent arg0) {
				// 登录按钮的方法
				if (text_userName.getText().trim().equals(Constant.userName)
						&& text_passWord.getText().trim().equals(Constant.passWord)) {
					JOptionPane.showMessageDialog(contentPane, "登陆成功！", "标题", JOptionPane.WARNING_MESSAGE);
					StartBrowse(Constant.URI1);
					System.exit(0);
				} else {
					JOptionPane.showMessageDialog(contentPane, "用户名或者密码错误！！", "标题", JOptionPane.WARNING_MESSAGE);
					// 帐号密码错误，自动清空帐号和密码
					text_userName.setText("");
					text_passWord.setText("");
				}
			}
		});
		login.setBounds(70, 194, 93, 23);
		contentPane.add(login);

		JButton regeist = new JButton("查看权限");
		regeist.setForeground(Color.BLUE);
		regeist.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				// 注册按钮的方法
				if (text_userName.getText().trim().equals(Constant.userName)
						&& text_passWord.getText().trim().equals(Constant.passWord)) {
					JOptionPane.showMessageDialog(contentPane, "登陆成功！", "标题", JOptionPane.WARNING_MESSAGE);
					StartBrowse(Constant.URI2);
					System.exit(0);
				} else {
					JOptionPane.showMessageDialog(contentPane, "您未登录！！", "标题", JOptionPane.WARNING_MESSAGE);
					// 帐号密码错误，自动清空帐号和密码
					text_userName.setText("");
					text_passWord.setText("");
				}
			}
		});
		regeist.setBounds(255, 194, 93, 23);
		contentPane.add(regeist);

		JLabel lblHttpsceetgovtop = new JLabel("官方网站： https://ceet-gov.top");
		lblHttpsceetgovtop.setForeground(Color.RED);
		lblHttpsceetgovtop.setBounds(116, 236, 222, 15);
		contentPane.add(lblHttpsceetgovtop);

		JLabel label = new JLabel("雨落秋垣-后台管理系统");
		label.setForeground(Color.MAGENTA);
		label.setFont(new Font("宋体", Font.PLAIN, 36));
		label.setBounds(23, 23, 378, 39);
		contentPane.add(label);
	}

	/**
	 * 用默认的浏览器，打开指定超链接
	 * 
	 * @param uri
	 */
	public void StartBrowse(String uri) {
		Desktop desktop = Desktop.getDesktop();
		try {
			desktop.browse(new URI(uri));
		} catch (IOException e1) {
			e1.printStackTrace();
		} catch (URISyntaxException e1) {
			e1.printStackTrace();
		}
	}
}

　

Das obige ist der detaillierte Inhalt vonTeilen Sie Beispielcode für eine Datenbank ohne Verbindung in JavaSwing. Für weitere Informationen folgen Sie bitte anderen verwandten Artikeln auf der PHP chinesischen Website!