swing中如何将jtable中的数据导入到excel中？

/*
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* and open the template in the editor.
*/
package Utils;
///////////////////////////////////////////////////
// import
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);
}
}