java+mysql用gui创建一个5x5的表格导入数据库数据并能进行批量增删改查

好的，我可以为您提供一个有批量增删改查功能的示例代码。以下是一个简单的示例代码：

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.table.DefaultTableModel;

public class TableExample extends JFrame implements ActionListener {
    private JTable table;
    private DefaultTableModel model;
    private JButton addButton;
    private JButton deleteButton;
    private JButton updateButton;
    private JTextField textField;

    public TableExample() {
        setTitle("Table Example");
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        setSize(500, 500);

        // Create table model with 5 columns and 5 rows
        model = new DefaultTableModel(5, 5);

        // Create table with the model
        table = new JTable(model);

        // Add table to scroll pane
        JScrollPane scrollPane = new JScrollPane(table);

        // Add scroll pane to frame
        add(scrollPane, BorderLayout.CENTER);

        // Create buttons and text field
        addButton = new JButton("Add");
        deleteButton = new JButton("Delete");
        updateButton = new JButton("Update");
        textField = new JTextField(10);

        // Add buttons and text field to panel
        JPanel buttonPanel = new JPanel();
        buttonPanel.add(addButton);
        buttonPanel.add(deleteButton);
        buttonPanel.add(updateButton);
        buttonPanel.add(textField);

        // Add panel to frame
        add(buttonPanel, BorderLayout.SOUTH);

        // Add action listeners to buttons
        addButton.addActionListener(this);
        deleteButton.addActionListener(this);
        updateButton.addActionListener(this);

        // Load data from database
        loadData();
    }

    // Load data from database into table model
    private void loadData() {
        // Connect to MySQL database
        String url = "jdbc:mysql://localhost:3306/testdb";
        String user = "username";
        String password = "password";
        try {
            Connection conn = DriverManager.getConnection(url, user, password);

            // Prepare SQL statement to select all data from table
            String sql = "SELECT * FROM mytable";
            PreparedStatement stmt = conn.prepareStatement(sql);

            // Execute SQL statement and get result set
            ResultSet rs = stmt.executeQuery();

            // Loop through result set and add data to table model
            while (rs.next()) {
                String[] row = new String[5];
                row[0] = rs.getString("col1");
                row[1] = rs.getString("col2");
                row[2] = rs.getString("col3");
                row[3] = rs.getString("col4");
                row[4] = rs.getString("col5");
                model.addRow(row);
            }

            conn.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }

    // Add row to table model and insert data into database
    private void addRow() {
        String[] row = new String[5];
        row[0] = "";
        row[1] = "";
        row[2] = "";
        row[3] = "";
        row[4] = "";
        model.addRow(row);

        // Connect to MySQL database
        String url = "jdbc:mysql://localhost:3306/testdb";
        String user = "username";
        String password = "password";
        try {
            Connection conn = DriverManager.getConnection(url, user, password);

            // Prepare SQL statement to insert data into table
            String sql = "INSERT INTO mytable (col1, col2, col3, col4, col5) VALUES (?, ?, ?, ?, ?)";
            PreparedStatement stmt = conn.prepareStatement(sql);

            // Get last row index and insert data into database
            int rowIdx = model.getRowCount() - 1;
            for (int i = 0; i < model.getColumnCount(); i++) {
                String value = model.getValueAt(rowIdx, i).toString();
                stmt.setString(i + 1, value);
            }
            stmt.executeUpdate();

            conn.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }

    // Delete selected rows from table model and database
    private void deleteRows() {
        // Connect to MySQL database
        String url = "jdbc:mysql://localhost:3306/testdb";
        String user = "username";
        String password = "password";
        try {
            Connection conn = DriverManager.getConnection(url, user, password);

            // Loop through selected rows and delete data from table
            int[] selectedRows = table.getSelectedRows();
            for (int i = selectedRows.length - 1; i >= 0; i--) {
                int rowIdx = selectedRows[i];
                String value = model.getValueAt(rowIdx, 0).toString();
                String sql = "DELETE FROM mytable WHERE col1 = ?";
                PreparedStatement stmt = conn.prepareStatement(sql);
                stmt.setString(1, value);
                stmt.executeUpdate();
                model.removeRow(rowIdx);
            }

            conn.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }

    // Update selected rows in table model and database
    private void updateRows() {
        // Connect to MySQL database
        String url = "jdbc:mysql://localhost:3306/testdb";
        String user = "username";
        String password = "password";
        try {
            Connection conn = DriverManager.getConnection(url, user, password);

            // Loop through selected rows and update data in table
            int[] selectedRows = table.getSelectedRows();
            for (int i = 0; i < selectedRows.length; i++) {
                int rowIdx = selectedRows[i];
                String value = model.getValueAt(rowIdx, 0).toString();
                String sql = "UPDATE mytable SET col2 = ?, col3 = ?, col4 = ?, col5 = ? WHERE col1 = ?";
                PreparedStatement stmt = conn.prepareStatement(sql);
                stmt.setString(1, model.getValueAt(rowIdx, 1).toString());
                stmt.setString(2, model.getValueAt(rowIdx, 2).toString());
                stmt.setString(3, model.getValueAt(rowIdx, 3).toString());
                stmt.setString(4, model.getValueAt(rowIdx, 4).toString());
                stmt.setString(5, value);
                stmt.executeUpdate();
            }

            conn.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }

    // Handle button clicks
    public void actionPerformed(ActionEvent e) {
        if (e.getSource() == addButton) {
            addRow();
        } else if (e.getSource() == deleteButton) {
            deleteRows();
        } else if (e.getSource() == updateButton) {
            updateRows();
        }
    }

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

请注意，此代码仅提供了基本的框架，您需要根据您的具体需求进行修改和完善。同时，您需要将MySQL的驱动程序添加到您的项目中，以便代码能够正确地连接到数据库。