Java编写图形用户界面的图书借阅系统

Java编写图形用户界面的图书借阅系统需要用到Java Swing和AWT等库。以下是一些实现步骤：

1. 设计数据库结构，包括图书信息、借阅记录等。

2. 设计图书借阅系统的界面。可以使用JFrame、JPanel等组件，包括图书查询、借阅、归还等功能。

3. 实现与数据库的交互。使用JDBC连接数据库，并进行增删改查等操作。

4. 实现借阅和归还功能。需要对图书状态进行修改，更新借阅记录等。

5. 实现图书查询功能。可以按照书名、作者、出版社等进行查询，同时需要显示图书的剩余数量等信息。

6. 实现用户登录和注册功能，保证系统安全性。

7. 进行异常处理，确保程序的稳定性。

以上是Java编写图形用户界面的图书借阅系统的一些基本步骤。需要注意的是，在实现过程中需要根据实际需求进行适当的修改和优化。

相关问题

Java编写图形用户界面图书借阅系统

好的，下面是一些基本的实现思路：

1. 数据存储：使用文本文件存储图书信息，每行表示一本书，数据格式为"书名,作者,出版社,数量"。在程序启动时，读取文件中的数据并加载到内存中，可以使用ArrayList等容器类方便后续操作。

2. 图书信息显示：使用Java Swing中的JTable控件展示所有图书信息，可以通过JScrollPane控件实现滚动条。可以在表头上添加按钮，实现按书名、作者、出版社、数量排序，使用JComboBox控件实现下拉菜单选择排序方式。在表格中添加一列复选框或者单选框，表示选择要借阅的图书。

3. 图书信息查找：使用文本框和搜索按钮实现按书名、作者、出版社查找相关图书。可以使用Java的正则表达式实现模糊匹配，在表格中显示匹配的结果。

4. 图书借阅：添加按钮实现借阅操作。需要检查借阅数量是否超过限制（最多借阅3本，同一本书最多借阅2本），并且需要判断图书的数量是否足够。借阅成功后，更新内存中的图书数量和借阅记录，将借阅记录写入文本文件。

5. 借阅记录：使用文本文件存储借阅记录，每行表示一条记录，数据格式为"借阅人,书名,借阅时间,归还时间"。在程序启动时，读取文件中的数据并加载到内存中。可以使用JTable控件展示借阅记录，实现按借阅人、书名、借阅时间、归还时间排序等功能。

以上是Java编写图书借阅系统的一些基本思路，具体实现需要根据实际需求进行设计和编写。

Java编写图形用户界面图书借阅系统代码

以下是一个简单的Java图书借阅系统代码实现，仅供参考：

import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.regex.Pattern;

import javax.swing.*;
import javax.swing.table.*;

public class BookBorrowSystem extends JFrame {
    private static final long serialVersionUID = 1L;
    private static final String BOOK_FILE = "books.txt";
    private static final String BORROW_RECORD_FILE = "borrow_records.txt";
    private static final int MAX_BORROW_COUNT = 3;
    private static final int MAX_BORROW_SAME_BOOK_COUNT = 2;
    private static final SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd");

    private ArrayList<Book> books = new ArrayList<Book>();
    private ArrayList<BorrowRecord> borrowRecords = new ArrayList<BorrowRecord>();
    private JTable bookTable;
    private JTable borrowRecordTable;

    public static void main(String[] args) {
        new BookBorrowSystem();
    }

    public BookBorrowSystem() {
        loadBooks();
        loadBorrowRecords();

        setTitle("图书借阅系统");
        setSize(800, 600);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        JTabbedPane tabbedPane = new JTabbedPane();
        add(tabbedPane, BorderLayout.CENTER);

        JPanel bookPanel = new JPanel(new BorderLayout());
        tabbedPane.add("图书信息", bookPanel);

        JPanel bookButtonPanel = new JPanel(new FlowLayout(FlowLayout.LEFT));
        bookPanel.add(bookButtonPanel, BorderLayout.NORTH);

        JButton refreshBookButton = new JButton("刷新");
        refreshBookButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                refreshBookTable();
            }
        });
        bookButtonPanel.add(refreshBookButton);

        JComboBox<String> sortComboBox = new JComboBox<String>(new String[] { "按书名排序", "按作者排序", "按出版社排序", "按数量排序" });
        sortComboBox.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                sortBooks(sortComboBox.getSelectedIndex());
                refreshBookTable();
            }
        });
        bookButtonPanel.add(sortComboBox);

        JTextField searchTextField = new JTextField(20);
        bookButtonPanel.add(searchTextField);

        JButton searchButton = new JButton("搜索");
        searchButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                searchBooks(searchTextField.getText());
            }
        });
        bookButtonPanel.add(searchButton);

        JButton borrowButton = new JButton("借阅");
        borrowButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                int[] selectedRows = bookTable.getSelectedRows();
                if (selectedRows.length == 0) {
                    JOptionPane.showMessageDialog(BookBorrowSystem.this, "请选择要借阅的图书");
                    return;
                }

                int borrowCount = getBorrowCount();
                if (borrowCount >= MAX_BORROW_COUNT) {
                    JOptionPane.showMessageDialog(BookBorrowSystem.this, "您已经借阅了" + borrowCount + "本图书，不能再借阅了");
                    return;
                }

                for (int i = 0; i < selectedRows.length; i++) {
                    int rowIndex = selectedRows[i];
                    Book book = books.get(rowIndex);

                    int borrowSameBookCount = getBorrowSameBookCount(book);
                    if (borrowSameBookCount >= MAX_BORROW_SAME_BOOK_COUNT) {
                        JOptionPane.showMessageDialog(BookBorrowSystem.this, "您已经借阅了" + borrowSameBookCount + "本《" + book.getName() + "》，不能再借阅了");
                        return;
                    }

                    if (book.getCount() == 0) {
                        JOptionPane.showMessageDialog(BookBorrowSystem.this, "《" + book.getName() + "》已经借光了");
                        return;
                    }

                    book.setCount(book.getCount() - 1);
                    borrowRecords.add(new BorrowRecord(System.getProperty("user.name"), book.getName(), new Date()));
                }

                saveBooks();
                saveBorrowRecords();
                refreshBookTable();
                refreshBorrowRecordTable();
            }

            private int getBorrowCount() {
                int count = 0;
                for (BorrowRecord record : borrowRecords) {
                    if (record.getBorrower().equals(System.getProperty("user.name")) && record.getReturnDate() == null) {
                        count++;
                    }
                }
                return count;
            }

            private int getBorrowSameBookCount(Book book) {
                int count = 0;
                for (BorrowRecord record : borrowRecords) {
                    if (record.getBorrower().equals(System.getProperty("user.name")) && record.getReturnDate() == null && record.getBookName().equals(book.getName())) {
                        count++;
                    }
                }
                return count;
            }
        });
        bookButtonPanel.add(borrowButton);

        bookTable = new JTable(new DefaultTableModel(new String[] { "书名", "作者", "出版社", "数量", "选择" }, 0) {
            private static final long serialVersionUID = 1L;

            public Class<?> getColumnClass(int columnIndex) {
                if (columnIndex == 4) {
                    return Boolean.class;
                }
                return super.getColumnClass(columnIndex);
            }

            public boolean isCellEditable(int row, int column) {
                return column == 4;
            }
        });
        bookTable.getTableHeader().setReorderingAllowed(false);
        bookTable.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
        bookTable.getColumnModel().getColumn(3).setCellRenderer(new DefaultTableCellRenderer() {
            private static final long serialVersionUID = 1L;

            public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
                Component component = super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column);
                if (Integer.parseInt(value.toString()) == 0) {
                    component.setForeground(Color.RED);
                } else {
                    component.setForeground(Color.BLACK);
                }
                return component;
            }
        });
        bookPanel.add(new JScrollPane(bookTable), BorderLayout.CENTER);

        JPanel borrowRecordPanel = new JPanel(new BorderLayout());
        tabbedPane.add("借阅记录", borrowRecordPanel);

        JPanel borrowRecordButtonPanel = new JPanel(new FlowLayout(FlowLayout.LEFT));
        borrowRecordPanel.add(borrowRecordButtonPanel, BorderLayout.NORTH);

        JButton refreshBorrowRecordButton = new JButton("刷新");
        refreshBorrowRecordButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                refreshBorrowRecordTable();
            }
        });
        borrowRecordButtonPanel.add(refreshBorrowRecordButton);

        JComboBox<String> borrowRecordSortComboBox = new JComboBox<String>(new String[] { "按借阅人排序", "按书名排序", "按借阅时间排序", "按归还时间排序" });
        borrowRecordSortComboBox.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                sortBorrowRecords(borrowRecordSortComboBox.getSelectedIndex());
                refreshBorrowRecordTable();
            }
        });
        borrowRecordButtonPanel.add(borrowRecordSortComboBox);

        borrowRecordTable = new JTable(new DefaultTableModel(new String[] { "借阅人", "书名", "借阅时间", "归还时间" }, 0));
        borrowRecordTable.getTableHeader().setReorderingAllowed(false);
        borrowRecordPanel.add(new JScrollPane(borrowRecordTable), BorderLayout.CENTER);

        setVisible(true);
    }

    private void loadBooks() {
        try {
            BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream(BOOK_FILE), "UTF-8"));
            String line;
            while ((line = reader.readLine()) != null) {
                String[] fields = line.split(",");
                Book book = new Book();
                book.setName(fields[0]);
                book.setAuthor(fields[1]);
                book.setPublisher(fields[2]);
                book.setCount(Integer.parseInt(fields[3]));
                books.add(book);
            }
            reader.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private void saveBooks() {
        try {
            BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(BOOK_FILE), "UTF-8"));
            for (Book book : books) {
                writer.write(book.getName() + "," + book.getAuthor() + "," + book.getPublisher() + "," + book.getCount());
                writer.newLine();
            }
            writer.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private void loadBorrowRecords() {
        try {
            BufferedReader reader = new BufferedReader(new InputStreamReader(new FileInputStream(BORROW_RECORD_FILE), "UTF-8"));
            String line;
            while ((line = reader.readLine()) != null) {
                String[] fields = line.split(",");
                BorrowRecord record = new BorrowRecord();
                record.setBorrower(fields[0]);
                record.setBookName(fields[1]);
                record.setBorrowDate(DATE_FORMAT.parse(fields[2]));
                if (fields.length > 3 && fields[3].length() > 0) {
                    record.setReturnDate(DATE_FORMAT.parse(fields[3]));
                }
                borrowRecords.add(record);
            }
            reader.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private void saveBorrowRecords() {
        try {
            BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(BORROW_RECORD_FILE), "UTF-8"));
            for (BorrowRecord record : borrowRecords) {
                writer.write(record.getBorrower() + "," + record.getBookName() + "," + DATE_FORMAT.format(record.getBorrowDate()));
                if (record.getReturnDate() != null) {
                    writer.write("," + DATE_FORMAT.format(record.getReturnDate()));
                }
                writer.newLine();
            }
            writer.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private void refreshBookTable() {
        DefaultTableModel model = (DefaultTableModel) bookTable.getModel();
        model.setRowCount(0);
        for (Book book : books) {
            model.addRow(new Object[] { book.getName(), book.getAuthor(), book.getPublisher(), book.getCount() });
        }
    }

    private void sortBooks(int sortType) {
        switch (sortType) {
        case 0:
            books.sort((a, b) -> a.getName().compareTo(b.getName()));
            break;
        case 1:
            books.sort((a, b) -> a.getAuthor().compareTo(b.getAuthor()));
            break;
        case 2:
            books.sort((a, b) -> a.getPublisher().compareTo(b.getPublisher()));
            break;
        case 3:
            books.sort((a, b) -> a.getCount() - b.getCount());
            break;
        }
    }

    private void searchBooks(String keyword) {
        DefaultTableModel model = (DefaultTableModel) bookTable.getModel();
        model.setRowCount(0);
        Pattern pattern = Pattern.compile(keyword, Pattern.CASE_INSENSITIVE);
        for (Book book : books) {
            if (pattern.matcher(book.getName()).find() || pattern.matcher(book.getAuthor()).find() || pattern.matcher(book.getPublisher()).find()) {
                model.addRow(new Object[] { book.getName(), book.getAuthor(), book.getPublisher(), book.getCount() });
            }
        }
    }

    private void refreshBorrowRecordTable() {
        DefaultTableModel model = (DefaultTableModel) borrowRecordTable.getModel();
        model.setRowCount(0);
        for (BorrowRecord record : borrowRecords) {
            model.addRow(new Object[] { record.getBorrower(), record.getBookName(), DATE_FORMAT.format(record.getBorrowDate()), record.getReturnDate() == null ? "未归还" : DATE_FORMAT.format(record.getReturnDate()) });
        }
    }

    private void sortBorrowRecords(int sortType) {
        switch (sortType) {
        case 0:
            borrowRecords.sort((a, b) -> a.getBorrower().compareTo(b.getBorrower()));
            break;
        case 1:
            borrowRecords.sort((a, b) -> a.getBookName().compareTo(b.getBookName()));
            break;
        case 2:
            borrowRecords.sort((a, b) -> a.getBorrowDate().compareTo(b.getBorrowDate()));
            break;
        case 3:
            borrowRecords.sort((a, b) -> {
                if (a.getReturnDate() == null && b.getReturnDate() == null) {
                    return 0;
                } else if (a.getReturnDate() == null) {
                    return 1;
                } else if (b.getReturnDate() == null) {
                    return -1;
                } else {
                    return a.getReturnDate().compareTo(b.getReturnDate());
                }
            });
            break;
        }
    }

    private static class Book {
        private String name;
        private String author;
        private String publisher;
        private int count;

        public String getName() {
            return name;
        }

        public void setName(String name) {
            this.name = name;
        }

        public String getAuthor() {
            return author;
        }

        public void setAuthor(String author) {
            this.author = author;
        }

        public String getPublisher() {
            return publisher;
        }

        public void setPublisher(String publisher) {
            this.publisher = publisher;
        }

        public int getCount() {
            return count;
        }

        public void setCount(int count) {
            this.count = count;
        }
    }

    private static class BorrowRecord {