JAVA修改excel的内容

package com.bestpay.bpbp.bill.init;

/**
* Created by Qj on 2015/08/17.
*/

import jxl.Workbook;
import jxl.write.Label;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;

import java.io.File;

/**
* Created by Qj on 2015/08/03.
*/
public class OutExcelDataForTestNG {
    private final File file = new File("E:\\add222.xls");

    public void modifyExcel(int SheetNo, int lieshu, int hangshu, String value) {
        try {
            Workbook rwb = Workbook.getWorkbook(file);
            WritableWorkbook wwb = Workbook.createWorkbook(file, rwb);// copy
            WritableSheet ws = wwb.getSheet(SheetNo);
            Label labelCF = new Label(lieshu, hangshu, value);
            ws.addCell(labelCF);
            wwb.write();
            wwb.close();
            rwb.close();
        } catch (Exception e) {
            e.printStackTrace();
            System.out.println("您是否打开了excel文件！请关闭后再试。");
        }
    }

    public static void main(String[] args) {
        OutExcelDataForTestNG out=new OutExcelDataForTestNG();
        out.modifyExcel(0,1,1,"修改xls内容");
    }
}