Java 图书管理系统代码

Java 图书管理系统是一个用Java语言开发的图书管理软件，主要用于对图书进行管理、查询和统计。下面是Java图书管理系统的一些代码实现：

1. 登录界面代码实现：

public class Login extends JFrame implements ActionListener {
    JLabel label1, label2;
    JTextField text;
    JPasswordField password;
    JButton button1, button2;

    public Login() {
        setTitle("图书管理系统登录");
        setSize(300, 200);
        setLocationRelativeTo(null);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        JPanel panel = new JPanel();
        label1 = new JLabel("用户名:");
        panel.add(label1);
        text = new JTextField(10);
        panel.add(text);

        label2 = new JLabel("密  码:");
        panel.add(label2);
        password = new JPasswordField(10);
        panel.add(password);

        button1 = new JButton("登录");
        button2 = new JButton("重置");
        panel.add(button1);
        panel.add(button2);

        button1.addActionListener(this);
        button2.addActionListener(this);

        getContentPane().add(panel);
    }

    public void actionPerformed(ActionEvent e) {
        if (e.getSource() == button1) {
            String user = text.getText();
            String pass = new String(password.getPassword());
            if (user.equals("admin") && pass.equals("admin")) {
                JOptionPane.showMessageDialog(null, "登录成功！");
            } else {
                JOptionPane.showMessageDialog(null, "用户名或密码错误！");
            }
        } else if (e.getSource() == button2) {
            text.setText("");
            password.setText("");
        }
    }

    public static void main(String[] args) {
        Login login = new Login();
        login.setVisible(true);
    }
}

2. 图书添加代码实现：

public class AddBook extends JFrame implements ActionListener {
    JLabel label1, label2, label3, label4, label5, label6;
    JTextField text1, text2, text3, text4, text5;
    JTextArea text6;
    JButton button1, button2;

    public AddBook() {
        setTitle("添加图书");
        setSize(400, 300);
        setLocationRelativeTo(null);
        setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

        JPanel panel = new JPanel(new GridLayout(7, 2));
        label1 = new JLabel("编号：");
        panel.add(label1);
        text1 = new JTextField(10);
        panel.add(text1);

        label2 = new JLabel("书名：");
        panel.add(label2);
        text2 = new JTextField(10);
        panel.add(text2);

        label3 = new JLabel("作者：");
        panel.add(label3);
        text3 = new JTextField(10);
        panel.add(text3);

        label4 = new JLabel("出版社：");
        panel.add(label4);
        text4 = new JTextField(10);
        panel.add(text4);

        label5 = new JLabel("出版日期：");
        panel.add(label5);
        text5 = new JTextField(10);
        panel.add(text5);

        label6 = new JLabel("简介：");
        panel.add(label6);
        text6 = new JTextArea(5, 20);
        JScrollPane scrollPane = new JScrollPane(text6);
        panel.add(scrollPane);

        button1 = new JButton("添加");
        button2 = new JButton("取消");
        panel.add(button1);
        panel.add(button2);

        button1.addActionListener(this);
        button2.addActionListener(this);

        getContentPane().add(panel);
    }

    public void actionPerformed(ActionEvent e) {
        if (e.getSource() == button1) {
            String id = text1.getText();
            String name = text2.getText();
            String author = text3.getText();
            String publisher = text4.getText();
            String publishDate = text5.getText();
            String summary = text6.getText();

            // 将图书信息保存到数据库中

            JOptionPane.showMessageDialog(null, "添加成功！");
            dispose();
        } else if (e.getSource() == button2) {
            dispose();
        }
    }

    public static void main(String[] args) {
        AddBook addBook = new AddBook();
        addBook.setVisible(true);
    }
}