java工具类导出jtable数据到excel工作表

package com.zhong.tools;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;

import javax.swing.JOptionPane;
import javax.swing.JTable;
import javax.swing.table.TableModel;

import jxl.Workbook;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
import jxl.write.WriteException;
import jxl.write.biff.RowsExceededException;

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");  
        }  
    }  
}