JTable选择更改事件处理:动态查找源表

import javax.swing.*;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableModel;
import java.awt.*;
import java.awt.event.ListSelectionEvent;
import java.awt.event.ListSelectionListener;

public class JTableExample {
    public static void main(String[] args) {
        JFrame frame = new JFrame("JTable Example");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        // 创建表格数据模型
        String[] columnNames = {"姓名", "年龄", "性别"};
        Object[][] data = {
                {"张三", 20, "男"},
                {"李四", 25, "女"},
                {"王五", 30, "男"}
        };
        TableModel model = new DefaultTableModel(data, columnNames);

        // 创建表格
        JTable table = new JTable(model);

        // 添加选择更改事件监听器
        table.getSelectionModel().addListSelectionListener(new ListSelectionListener() {
            @Override
            public void valueChanged(ListSelectionEvent e) {
                if (!e.getValueIsAdjusting()) {
                    int selectedRow = table.getSelectedRow();
                    if (selectedRow != -1) {
                        String name = (String) table.getValueAt(selectedRow, 0);
                        int age = (int) table.getValueAt(selectedRow, 1);
                        String gender = (String) table.getValueAt(selectedRow, 2);
                        System.out.println("选中的行：姓名=" + name + ", 年龄=" + age + ", 性别=" + gender);
                    }
                }
            }
        });

        // 将表格添加到滚动窗格中
        JScrollPane scrollPane = new JScrollPane(table);
        frame.add(scrollPane, BorderLayout.CENTER);

        // 设置窗口大小并显示
        frame.pack();
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
    }
}