Servlet 利用Jxl导出Excel

package com.excel.web;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import jxl.Workbook;
import jxl.write.Label;
import jxl.write.WritableSheet;
import jxl.write.WritableWorkbook;
import jxl.write.WriteException;
import jxl.write.biff.RowsExceededException;
public class ExcelController extends HttpServlet
{
private static final long serialVersionUID = 3256767193156026532L;
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException
{
request.setCharacterEncoding("UTF-8");
// 禁止数据缓存。
response.setHeader("Pragma", "no-cache");
response.setHeader("Cache-Control", "no-cache");
response.setDateHeader("Expires", 0);
response.setContentType("application/vnd.ms-excel;charset=UTF-8");
response.addHeader("Content-Disposition",
"attachment;filename=kkkk.xls");
try
{
WritableWorkbook book = Workbook.createWorkbook(response
.getOutputStream());
WritableSheet sheet = book.createSheet("Sheet_1", 0);
Label label = new Label(0, 0, "test");
sheet.addCell(label);
jxl.write.Number number = new jxl.write.Number(1, 0, 789.123);
sheet.addCell(number);
book.write();
book.close();
} catch (RowsExceededException e)
{
e.printStackTrace();
} catch (WriteException e)
{
e.printStackTrace();
}
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException
{
this.doGet(request, response);
}
}