Servlet中将集合中的数据输出到PDF,XLS,HTML..doc

package com.aptech.servlet; import java.io.ByteArrayOutputStream; import java.io.FileInputStream; import java.io.IOException; import java.io.OutputStream; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import net.sf.jasperreports.engine.JRException; import net.sf.jasperreports.engine.JRExporterParameter; import net.sf.jasperreports.engine.JasperExportManager; import net.sf.jasperreports.engine.JasperFillManager; import net.sf.jasperreports.engine.JasperPrint; import net.sf.jasperreports.engine.data.JRBeanCollectionDataSource; import net.sf.jasperreports.engine.export.JRHtmlExporter; import net.sf.jasperreports.engine.export.JRHtmlExporterParameter; import net.sf.jasperreports.engine.export.JRPdfExporter; import net.sf.jasperreports.engine.export.JRXlsExporter; import net.sf.jasperreports.engine.export.JRXlsExporterParameter; import com.aptech.ref.Employee; public class ReportServlet extends HttpServlet { /** * The doGet method of the servlet. br * * This method is called when a form has its tag value method equals to get. * * @param request the request send by the client to the server * @param response the response send by the server to the client * @throws ServletException if an error occurred * @throws IOException if an error occurred */ public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { //response.setContentType(text/html); ListEmployee list = new ArrayListEmployee(); list.add(new Employee(1, 李赞红1, 男)); list.add(new Employee(2, 李赞红2, 男)); list.add(new Employee(3, 李赞红3, 男)); list.add(new Employee(4, 李赞红4, 男)); list.add(new Employee(5, 李赞红5, 男)); list.add(new Employee(6, 李赞红5, 男)); list.add(new Employee(7, 李赞红5, 男)); list.add(new Employee(1, 李赞红1,