java对excel的创建，读取，复制

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;

import jxl.Cell;
import jxl.Sheet;
import jxl.Workbook;
import jxl.format.Colour;
import jxl.format.UnderlineStyle;
import jxl.write.Label;
import jxl.write.Number;
import jxl.write.WritableCellFormat;
import jxl.write.WritableFont;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;


public class Excel {

	/**
	 * @param args
	 * @author 
	 * @throws Exception 
	 * @createtime 2015-7-31 上午09:58:41
	 */
	public static void main(String[] args) throws  Exception {
		createExcel();
		copeExcel();
		readExcel();
	}
	
	public static void createExcel() throws  Exception{
		String url="E:\\excel\\javaExcel.xls";
		//创建文件
		OutputStream os=new FileOutputStream(url);
		WritableWorkbook wwb=Workbook.createWorkbook(os);
		//创建第一张sheet
		WritableSheet ws=wwb.createSheet("sheet1", 0);
		//添加label对象
		Label label=new Label(0, 0, "label cell");
		ws.addCell(label);
		//添加带有字型的label对象
		WritableFont wf=new WritableFont(WritableFont.TIMES, 18, WritableFont.BOLD, true);
		WritableCellFormat wcf=new WritableCellFormat(wf);
		Label labelwf=new Label(0, 1, "label cell 0 1", wcf);
		ws.addCell(labelwf);
		//添加带有字体颜色的label对象
		WritableFont wfc=new WritableFont(WritableFont.ARIAL, 10, WritableFont.NO_BOLD, false, UnderlineStyle.NO_UNDERLINE, Colour.RED);
		WritableCellFormat wcfc=new WritableCellFormat(wfc);
		Label labelwcfc=new Label(0,2,"label cell 0 2",wcfc);
		ws.addCell(labelwcfc);
		//添加number,还有其他类型没有写
		Number labelN=new Number(0, 3, 2.1);
		ws.addCell(labelN);
		wwb.write();
		wwb.close();
		
		
	}
	
	public static void copeExcel() throws Exception{
		String url="E:\\excel\\javaExcel1.xls";
		//创建文件
		OutputStream os=new FileOutputStream(url);
		WritableWorkbook wwb=Workbook.createWorkbook(os);
		//输入流文件路径读取
		InputStream in=new FileInputStream("E:\\excel\\javaExcel.xls");
		//构建workbook
		Workbook workBook=Workbook.getWorkbook(in);
		//获取读取文件的sheet数
		int sheet=workBook.getNumberOfSheets();
		for (int i = 0; i < sheet; i++) {
			//获取读取文件的sheet对象
			Sheet st=workBook.getSheet(i);
			//复制文件创建sheet对象
			WritableSheet ws=wwb.createSheet("sheet"+(i+1), i);
			for (int j = 0; j < st.getColumns(); j++) {//循环读取文件的列
				for (int j2 = 0; j2 < st.getRows(); j2++) {//循环读取文件的行
					Label label=new Label(j, j2, st.getCell(j, j2).getContents());//获取读取文件的值创建label
					ws.addCell(label);//将label添加的复杂文件中
				}
			}
		}
		wwb.write();//写入
		wwb.close();//关闭
	}
	
	public static void readExcel() throws Exception{
		//输入流文件路径读取
		InputStream in=new FileInputStream("E:\\excel\\javaExcel.xls");
		//构建workbook
		Workbook workBook=Workbook.getWorkbook(in);
		//读取第一张sheet表
		Sheet st=workBook.getSheet(0);
		//读取第一行第一列
		Cell cell=st.getCell(0, 0);
		//将读取的excel数据转换成字符串
		String cellStr=cell.getContents();
		//读取第二行第一列
		Cell cell1=st.getCell(st.getColumns()-1>1?1:st.getColumns()-1, 0);
		String cellStr1=cell1.getContents();
		//读取第一行第二列
		Cell cell01=st.getCell(0, st.getRows()-1>1?1:st.getRows()-1);
		String cellStr01=cell01.getContents();
		System.out.println(cellStr+"|"+cellStr1+"|"+cellStr01);
		//打印读取到的excel数据类型
		System.out.println(cell.getType());
		//获取sheet个数
		int sheetNumber=workBook.getNumberOfSheets();
		//获取sheet对象数组
		Sheet[] sheetArr=workBook.getSheets();
		//获取sheet的名称
		String sheetName=st.getName();
		//获取sheet表中的总列数
		int sheetColumn=st.getColumns();
		//获取某一列的单元格，返回数组对象
		Cell[] cellColumnArr=st.getColumn(0);
		//获取行数
		int sheetRow=st.getRows();
		//获取行下的单元格
		Cell[] cellRowArr=st.getRow(0);
		
		//操作完成关闭对象，释放占用的内存
		workBook.close();
		
	}

}