记得要下载 并 导入jxl.jar 包，免积分下载地址：http://download.csdn.net/detail/u010011052/7561041

package Test;

import java.io.*;

import jxl.*;
import jxl.format.Colour;
import jxl.write.*;


public class JXLTest {

	private static WritableWorkbook book;
	private static WritableSheet sheet ;
	private static WritableFont normalFont;

	private static WritableFont diffFont;
	private static WritableCellFormat normalFormat;
	private static WritableCellFormat diffFormat;
	
	/**
	 * java创建excel简单示例
	 */
	public static void main(String args[]) {
		createExcel();
	}

	public static void createExcel(){
		try {
			String fileNameAndPath = "E:\\DifferentData\\java创建excel文件示例.xls";
			book = Workbook.createWorkbook(new File(fileNameAndPath));
			// 生成名为"第一页"的工作表，参数0表示这是第一页
			sheet = book.createSheet("第一页", 0);
			// 设置字体为宋体,11号字,不加粗,颜色为红色
			normalFont = new WritableFont(WritableFont.createFont("宋体"), 11, WritableFont.NO_BOLD);
			// 设置字体为宋体,11号字,不加粗,颜色为红色
			diffFont = new WritableFont(WritableFont.createFont("宋体"), 11, WritableFont.NO_BOLD);
			diffFont.setColour(Colour.RED);

			normalFormat = new WritableCellFormat(normalFont);
			normalFormat.setAlignment(jxl.format.Alignment.CENTRE);
			normalFormat.setVerticalAlignment(jxl.format.VerticalAlignment.CENTRE);
			
			diffFormat = new WritableCellFormat(diffFont);
			diffFormat.setAlignment(jxl.format.Alignment.CENTRE);
			diffFormat.setVerticalAlignment(jxl.format.VerticalAlignment.CENTRE);

			Label labelA = new Label(0, 0, "第一列标题", normalFormat);
			Label labelB = new Label(1, 0, "第二列标题", normalFormat);
			Label labelC = new Label(2, 0, "第三列标题", normalFormat);
			Label labelD = new Label(3, 0, "第四列标题", normalFormat);
			for(int i=1; i<=10; i++){
				Label lab1 = new Label(0,i,"第"+i+"行第1列");
				Label lab2 = new Label(2,i,"第"+i+"行第2列");
				Label lab3 = new Label(3,i,"第"+i+"行第3列",diffFormat);
				Label lab4 = new Label(4,i,"第"+i+"行第4列");
				sheet.addCell(lab1);
				sheet.addCell(lab2);
				sheet.addCell(lab3);
				sheet.addCell(lab4);
			}
			// 将定义好的单元格添加到工作表中
			sheet.addCell(labelA);
			sheet.addCell(labelB);
			sheet.addCell(labelC);
			sheet.addCell(labelD);
			
			book.write();
			book.close();
			System.out.println("创建文件成功!");
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally{
			
		}
	}
	
}