您可以导出到html文件，然后可以将其作为输出或servletoutputstream发送，并在一个框架中显示

String htmlpath="E:/JASPER/OUTPUT/test_jasper.html";
 JasperDesign jasperDesign = JRXmlLoader.load(inputStream);
       JasperReport jasperReport = JasperCompileManager.compileReport(jasperDesign);
       JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, parameters, conn);
        JasperExportManager.exportReportToHtmlFile(jasperPrint,htmlpath);
        InputStream in=new FileInputStream(htmlpath);
        int len = -1;
        byte[]  byt = new byte[1024];

        ServletOutputStream outputStream = response.getOutputStream();
        while((len = in.read(byt)) != -1){
            outputStream.write(byt, 0, len);
        }
        outputStream.flush();
        outputStream.close();