import Java.io.File;
import java.util.*;
import jxl.*;
import jxl.write.*;
/**
* <p>Title: 操作Excel文件</p>
* <p>Description: 本实例演示使用jxl包实现对excel文件的操作</p>
* <p>Copyright: Copyright (c) 2003</p>
* <p>Filename: myExcel.java</p>
* @version 1.0
*/
public class myExcel{
Workbook workbook;
Sheet sheet;
/**
*<br>方法说明：写入文件操作
*<br>输入参数：
*<br>返回类型：
*/
public void write(){
try{
//创建一个可写入的excel文件对象
WritableWorkbook workbook = Workbook.createWorkbook(new File("myfile.xls"));
//使用第一张工作表，将其命名为“午餐记录”
WritableSheet sheet = workbook.createSheet("午餐记录", 0);
//表头
Label label0 = new Label(0, 0, "时间");
sheet.addCell(label0);
Label label1 = new Label(1, 0, "姓名");
sheet.addCell(label1);
Label label2 = new Label(2, 0, "午餐标准");
sheet.addCell(label2);
Label label3 = new Label(3, 0, "实际费用");
sheet.addCell(label3);
//格式化日期
jxl.write.DateFormat df = new jxl.write.DateFormat("yyyy-dd-MM hh:mm:ss");
jxl.write.WritableCellFormat wcfDF = new jxl.write.WritableCellFormat(df);
jxl.write.DateTime labelDTF = new jxl.write.DateTime(0, 1, new java.util.Date(), wcfDF);
sheet.addCell(labelDTF);
//普通字符
Label labelCFC = new Label(1, 1, "riverwind");
sheet.addCell(labelCFC);
//格式化数字
jxl.write.NumberFormat nf = new jxl.write.NumberFormat("#.##");
WritableCellFormat wcfN = new WritableCellFormat(nf);
jxl.write.Number labelNF = new jxl.write.Number(2, 1, 13.1415926, wcfN);
sheet.addCell(labelNF);
jxl.write.Number labelNNF = new jxl.write.Number(3, 1, 10.50001, wcfN);
sheet.addCell(labelNNF);
//关闭对象，释放资源
workbook.write();
workbook.close();
