jxl写入一个excel文件。
读取方面请看下面相关链接，上一遍是关于读取excel的。
package com.javaer.file;
import java.io.File;
import java.io.IOException;
import jxl.Workbook;
import jxl.write.Label;
import jxl.write.WritableCellFormat;
import jxl.write.WritableFont;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
import jxl.write.WriteException;
import jxl.write.biff.RowsExceededException;
public class ExcelWrite {
/**
* @param args
* @throws IOException
* @throws WriteException
* @throws RowsExceededException
*/
public static void main(String[] args) throws IOException, RowsExceededException, WriteException {
String fname = "/1.xls";
File f = new File(fname);
WritableWorkbook wb=Workbook.createWorkbook(f);
WritableSheet wsheet=wb.createSheet("第一页",0);
WritableFont font1= new WritableFont(WritableFont.ARIAL,10,WritableFont.BOLD);
WritableCellFormat format1=new WritableCellFormat(font1);
wsheet.addCell(new Label(0,0, "名字",format1));
wsheet.addCell(new Label(1,0, "外号",format1));
wsheet.addCell(new Label(2,0, "排行",format1));//前面那个2是表示列，后面的0表示当前行
wsheet.addCell(new Label(0,1, "张三疯",format1));
wsheet.addCell(new Label(1,1, "老鬼",format1));
//wsheet.addCell(new Label(2,1, "1",format1));//前面那个2是表示列，后面的1表示当前行
jxl.write.Number number = new jxl.write.Number(2,1,1 );//写入一个数字格式的。
wsheet.addCell(number);
wb.write();
wb.close();
}
}