jxl的使用

package com.jxlexam;

import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.text.SimpleDateFormat;
import java.util.Date;

import jxl.Workbook;
import jxl.format.Alignment;
import jxl.format.Border;
import jxl.format.BorderLineStyle;
import jxl.format.CellFormat;
import jxl.write.Label;
import jxl.write.WritableCellFormat;
import jxl.write.WritableFont;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;

public class JXLExam {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		
		//创建EXCEL工作薄(workbook)中工作表(sheet)的标题
		@SuppressWarnings("unused")
		String[] titles = {"编号","产品名称","产品价格","产品数量","生产日期","产地","是否出口"};
		try{
			//取得开始时间
			@SuppressWarnings("unused")
			long startTime = System.currentTimeMillis();
			
			//设置Excel工作薄的输出路径
			@SuppressWarnings("unused")
			String path = "d:"+File.separator+"test.xls";
			
			//创建Excel工作薄
			@SuppressWarnings("unused")
			WritableWorkbook wwb ; 
			
			//创建一个新的jxl文件
			OutputStream os = new FileOutputStream(path);
			wwb = Workbook.createWorkbook(os);
			
			//添加第一个工作表(sheet)并设置其名字
			@SuppressWarnings("unused")
			WritableSheet sheet = wwb.createSheet("产品清单", 0);
			
			//
			Label label ;
			for(int i=0;i<titles.length;i++){
				//label(x,y,z)x==第几列，y==第几行，z==表格内容
				label = new Label(i,0,titles[i]);
				// 将定义好的单元格添加到工作表中
				sheet.addCell(label);
			}			
		
		
		//添加数据
		//保存数字，需要使用jxl.wirte.number
		//填充产品编号
		jxl.write.Number number = new jxl.write.Number(0,1,1000001);
		sheet.addCell(number);
		
		//填充产品名称
		label = new Label(1,1,"HP");
		sheet.addCell(label);
		
		//填充产品价格
		//定义产品价格的显示格式
		jxl.write.NumberFormat nf = new jxl.write.NumberFormat("#.##");
		jxl.write.WritableCellFormat wcf = new jxl.write.WritableCellFormat(nf);
		jxl.write.Number price = new jxl.write.Number(2,1,4600.00,wcf);
		sheet.addCell(price);
		
		//填充产品数量
		jxl.write.Number numb = new jxl.write.Number(3,1,200);
		sheet.addCell(numb);
		
		//填充产品日期
		SimpleDateFormat sdf = new SimpleDateFormat("yyyy-mm-dd");
		String date = sdf.format(new Date());
		label = new Label(4,1,date);
		sheet.addCell(label);
		
		// 填充产地
		label = new Label(5,1,"陕西西安");
		sheet.addCell(label);
		/*
		 * 显示布尔值
		 * */
		jxl.write.Boolean bool = new jxl.write.Boolean(6,1,true);
		sheet.addCell(bool);
		
		//
		sheet.mergeCells(0, 3, 2, 3);
		label =new Label(0,3,"合并了三个单元格");
		
		/*
		 * 
		 * 定义公共字体格式
		 * 通过获取一个字体的样式来作为模板
		 * 首先通过web.getSheet(0)获得第一个sheet
		 * 然后取得第一个sheet的第二列，第一行也就是"产品名称"的字体 
		 * */
		CellFormat cf = wwb.getSheet(0).getCell(1, 0).getCellFormat();
		WritableCellFormat wc = new WritableCellFormat();
		// 设置居中
		wc.setAlignment(Alignment.CENTRE);
		// 设置边框线
		wc.setBorder(Border.ALL, BorderLineStyle.THIN);
		// 设置单元格的背景颜色
		wc.setBackground(jxl.format.Colour.RED);
		label = new Label(1,5,"字体",wc);
		sheet.addCell(label);

		// 设置字体
		jxl.write.WritableFont wfont = new jxl.write.WritableFont(WritableFont.createFont("隶书"),20);
		WritableCellFormat font = new WritableCellFormat(wfont);
		label = new Label(2,6,"隶书",font);
		sheet.addCell(label);
		
		//写入数据
		wwb.write();
		wwb.close();
		}catch(Exception e){
			e.printStackTrace();
		}
	}

}