请教高人：再论报表的显示问题

目前我正在用jasperreport+ireport做报表，现在已经能够产生.xls,.html,.csv,.pdf文件
问题：如何在当前浏览页中显示这些文件？代码如下：
File reportFile = new File(application.getRealPath("/report/test.jasper"));
JasperReport jasperReport = (JasperReport)JRLoader.loadObject(reportFile.getPath());
Map parameters = new HashMap();
parameters.put("pname", "rong");
Connection conn=null;

//数据库连接过程

Mysql mysql=new Mysql();
conn=mysql.getConnection();
JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport,parameters,conn);
JRHtmlExporter exporter = new JRHtmlExporter();
exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint);
exporter.setParameter(JRExporterParameter.OUTPUT_WRITER, out);
exporter.exportReport();

用上面的代码显示不正常，请问问题在什么地方？？谢谢！！

<%File reportFile = new File(application.getRealPath("/report/test.jasper")); 
        JasperReport jasperReport = (JasperReport)JRLoader.loadObject(reportFile.getPath()); 
	Map parameters = new HashMap();
	parameters.put("pname", "rong");
	Connection conn=null;
	
	//数据库连接过程

	Mysql mysql=new Mysql();
	conn=mysql.getConnection();
	JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport,parameters,conn); 
         JRHtmlExporter exporter = new JRHtmlExporter();
         exporter.setParameter(JRExporterParameter.JASPER_PRINT, jasperPrint); 
        exporter.setParameter(JRExporterParameter.OUTPUT_WRITER, out);
        exporter.exportReport(); 
%>[/