如何从JTable文本文件创建字符串？

import javax.swing.*;
import javax.swing.table.DefaultTableModel;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;

public class JTableToString {
    public static void main(String[] args) {
        // 创建JTable并加载文本文件
        JTable table = new JTable();
        loadTextFileToTable(table, "path/to/text/file.txt");

        // 将JTable转换为字符串
        String tableString = tableToString(table);
        System.out.println(tableString);
    }

    private static void loadTextFileToTable(JTable table, String filePath) {
        DefaultTableModel model = (DefaultTableModel) table.getModel();
        model.setColumnIdentifiers(new Object[]{"Column 1", "Column 2", "Column 3"});

        try (BufferedReader reader = new BufferedReader(new FileReader(new File(filePath)))) {
            String line;
            while ((line = reader.readLine()) != null) {
                String[] rowData = line.split("\t"); // 假设文本文件中的数据以制表符分隔
                model.addRow(rowData);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private static String tableToString(JTable table) {
        StringBuilder sb = new StringBuilder();

        for (int row = 0; row < table.getRowCount(); row++) {
            for (int col = 0; col < table.getColumnCount(); col++) {
                sb.append(table.getValueAt(row, col));
                if (col < table.getColumnCount() - 1) {
                    sb.append("\t"); // 使用制表符分隔每个单元格的值
                }
            }
            sb.append("\n"); // 每行数据末尾添加换行符
        }

        return sb.toString();
    }
}