如何在JTable中插入一行数据？

DefaultTableModel model = new DefaultTableModel();
JTable table = new JTable(model);

Vector<String> columnNames = new Vector<>();
columnNames.add("列名1");
columnNames.add("列名2");
model.setColumnIdentifiers(columnNames);

Vector<Object> rowData = new Vector<>();
rowData.add("数据1");
rowData.add("数据2");

model.addRow(rowData);

import javax.swing.*;
import javax.swing.table.DefaultTableModel;
import java.util.Vector;

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

        DefaultTableModel model = new DefaultTableModel();
        JTable table = new JTable(model);

        Vector<String> columnNames = new Vector<>();
        columnNames.add("列名1");
        columnNames.add("列名2");
        model.setColumnIdentifiers(columnNames);

        Vector<Object> rowData = new Vector<>();
        rowData.add("数据1");
        rowData.add("数据2");
        model.addRow(rowData);

        frame.add(new JScrollPane(table));
        frame.pack();
        frame.setVisible(true);
    }
}