用Java写一个窗口化的图书管理系统

好的，下面是一个简单的Java图书管理系统的代码示例：

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;

public class BookManagementSystem extends JFrame implements ActionListener {
    private JLabel titleLabel, authorLabel, priceLabel, searchLabel;
    private JTextField titleField, authorField, priceField, searchField;
    private JButton addButton, searchButton, deleteButton;
    private JTable bookTable;
    private JScrollPane scrollPane;

    private ArrayList<Book> bookList;

    // 构造函数
    public BookManagementSystem() {
        setTitle("图书管理系统");
        setSize(600, 400);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        // 创建组件
        titleLabel = new JLabel("书名：");
        authorLabel = new JLabel("作者：");
        priceLabel = new JLabel("价格：");
        searchLabel = new JLabel("搜索：");

        titleField = new JTextField();
        authorField = new JTextField();
        priceField = new JTextField();
        searchField = new JTextField();

        addButton = new JButton("添加");
        searchButton = new JButton("搜索");
        deleteButton = new JButton("删除");

        bookList = new ArrayList<>();
        bookTable = new JTable(new BookTableModel(bookList));
        scrollPane = new JScrollPane(bookTable);

        // 设置布局
        setLayout(new GridBagLayout());
        GridBagConstraints c = new GridBagConstraints();

        // 添加书名、作者、价格标签和文本框
        c.gridx = 0;
        c.gridy = 0;
        c.insets = new Insets(10, 10, 10, 10);
        add(titleLabel, c);

        c.gridx = 1;
        add(titleField, c);

        c.gridx = 0;
        c.gridy = 1;
        add(authorLabel, c);

        c.gridx = 1;
        add(authorField, c);

        c.gridx = 0;
        c.gridy = 2;
        add(priceLabel, c);

        c.gridx = 1;
        add(priceField, c);

        // 添加按钮
        c.gridx = 0;
        c.gridy = 3;
        add(addButton, c);

        c.gridx = 1;
        add(deleteButton, c);

        c.gridx = 2;
        add(searchLabel, c);

        c.gridx = 3;
        add(searchField, c);

        c.gridx = 4;
        add(searchButton, c);

        // 添加书籍列表
        c.gridx = 0;
        c.gridy = 4;
        c.gridwidth = 5;
        c.fill = GridBagConstraints.BOTH; // 填充整个空间
        c.weightx = 1.0; // 水平扩展
        c.weighty = 1.0; // 垂直扩展
        add(scrollPane, c);

        // 添加事件监听器
        addButton.addActionListener(this);
        deleteButton.addActionListener(this);
        searchButton.addActionListener(this);
    }

    // 添加书籍
    private void addBook() {
        String title = titleField.getText();
        String author = authorField.getText();
        double price = Double.parseDouble(priceField.getText());

        Book book = new Book(title, author, price);
        bookList.add(book);

        // 刷新表格
        bookTable.setModel(new BookTableModel(bookList));

        // 清空文本框
        titleField.setText("");
        authorField.setText("");
        priceField.setText("");
    }

    // 删除书籍
    private void deleteBook() {
        int row = bookTable.getSelectedRow();
        if (row >= 0) {
            bookList.remove(row);
            bookTable.setModel(new BookTableModel(bookList));
        }
    }

    // 搜索书籍
    private void searchBook() {
        String keyword = searchField.getText();
        ArrayList<Book> result = new ArrayList<>();

        for (Book book : bookList) {
            if (book.getTitle().contains(keyword) || book.getAuthor().contains(keyword)) {
                result.add(book);
            }
        }

        // 刷新表格
        bookTable.setModel(new BookTableModel(result));
    }

    // 事件处理
    @Override
    public void actionPerformed(ActionEvent e) {
        if (e.getSource() == addButton) {
            addBook();
        } else if (e.getSource() == deleteButton) {
            deleteBook();
        } else if (e.getSource() == searchButton) {
            searchBook();
        }
    }

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

// 书籍类
class Book {
    private String title;
    private String author;
    private double price;

    public Book(String title, String author, double price) {
        this.title = title;
        this.author = author;
        this.price = price;
    }

    public String getTitle() {
        return title;
    }

    public String getAuthor() {
        return author;
    }

    public double getPrice() {
        return price;
    }
}

// 表格模型类
class BookTableModel extends AbstractTableModel {
    private ArrayList<Book> bookList;
    private String[] columnNames = {"书名", "作者", "价格"};

    public BookTableModel(ArrayList<Book> bookList) {
        this.bookList = bookList;
    }

    @Override
    public int getRowCount() {
        return bookList.size();
    }

    @Override
    public int getColumnCount() {
        return 3;
    }

    @Override
    public String getColumnName(int column) {
        return columnNames[column];
    }

    @Override
    public Object getValueAt(int rowIndex, int columnIndex) {
        Book book = bookList.get(rowIndex);

        switch (columnIndex) {
            case 0:
                return book.getTitle();
            case 1:
                return book.getAuthor();
            case 2:
                return book.getPrice();
            default:
                return null;
        }
    }
}

这个图书管理系统包括添加、删除和搜索书籍的功能，以及一个表格来显示所有的书籍。界面使用了Java的Swing库来实现。