在jsp页面上显示报表代码：
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ page
import="java.io.*,
net.sf.jasperreports.engine.*,
net.sf.jasperreports.engine.util.*,
java.util.*,java.sql.*,
net.sf.jasperreports.engine.export.*"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<%
File reportFile = new File(application
.getRealPath("report/报表1.jasper"));
JasperReport jasperReport = (JasperReport) JRLoader
.loadObject(reportFile.getPath());
Map parameters = new HashMap();
Class.forName("com.mysql.jdbc.Driver");
Connection conn = DriverManager.getConnection(
"jdbc:mysql://localhost:3306/hotel", "root", "123456");
JasperPrint jasperPrint = JasperFillManager.fillReport(
jasperReport, parameters, conn);
JRHtmlExporter exporter = new JRHtmlExporter();
exporter
.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
exporter.setParameter(JRExporterParameter.OUTPUT_WRITER, out);
exporter.setParameter(JRHtmlExporterParameter.IS_USING_IMAGES_TO_ALIGN, Boolean.FALSE);
exporter.exportReport();
out.flush();
conn.close();
%>
</body>
</html>