这个版本的代码是可以支持中文，需要导入jxl.jar包，并添加到Build Path中（自行搜索下载）。

最终代码：

package test;

import java.awt.event.*;
import java.io.*;
import javax.swing.*;
import javax.swing.table.*;
import jxl.*;
import jxl.write.*;
import jxl.write.biff.RowsExceededException;
/**
 *
 * @author Administrator
 */
public class ExcelExporter {
    
    public ExcelExporter() {
    }
    
    public void exportTable(JTable table, File file) throws IOException {
        try {
            OutputStream out = new FileOutputStream(file);
            TableModel model = table.getModel();
            WritableWorkbook wwb = Workbook.createWorkbook(out);
            // 创建字表，并写入数据
            WritableSheet ws = wwb.createSheet("中文", 0);
            // 添加标题
            for (int i = 0; i < model.getColumnCount(); i++) {
                jxl.write.Label labelN = new jxl.write.Label(i, 0, model.getColumnName(i));
                try {
                    ws.addCell(labelN);
                } catch (RowsExceededException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                } catch (WriteException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
            // 添加列
            for (int i = 0; i < model.getColumnCount(); i++) {
                for (int j = 1; j <= model.getRowCount(); j++) {
                    jxl.write.Label labelN = new jxl.write.Label(i, j, model.getValueAt(j - 1, i).toString());
                    try {
                        ws.addCell(labelN);
                    } catch (RowsExceededException e) {
                        e.printStackTrace();
                    } catch (WriteException e) {
                        e.printStackTrace();
                    }
                }
            }
            wwb.write();
            try {
                wwb.close();
            } catch (WriteException e) {
                e.printStackTrace();
            }
        } catch (FileNotFoundException e) {
            JOptionPane.showMessageDialog(null, "导入数据前请关闭工作表");
        }
    }
    public static void main(String[] args) {
        String[][] data = {
            {"中文", "$1275.00"},
            {"Pets", "$125.00"},
            {"Electronics", "$2533.00"},
            {"Mensware", "$497.00"}
        };
        String[] headers = {"Department", "Daily Revenue"};
        JFrame frame = new JFrame("JTable to Excel Hack");
        DefaultTableModel model = new DefaultTableModel(data, headers);
        final JTable table = new JTable(model);
        JScrollPane scroll = new JScrollPane(table);
        
        JButton export = new JButton("Export");
        export.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent evt) {
                try {
                    ExcelExporter exp = new ExcelExporter();
                    exp.exportTable(table, new File("results.xls"));
                } catch (IOException ex) {
                    System.out.println(ex.getMessage());
                    ex.printStackTrace();
                }
            }
        });
        frame.getContentPane().add("Center", scroll);
        frame.getContentPane().add("South", export);
        frame.pack();
        frame.setVisible(true);
    }
}

程序运行效果图：

程序会在当前目录下导出一个名为results.xls的Excel，效果图：

 

原文链接：swing中如何将jtable中的数据导入到excel中？