jasper report in jruby
JasperReport jasperReport;
    JasperPrint jasperPrint;
    HashMap jasperParameter = new HashMap();
    jasperReport = JasperCompileManager.compileReport("C://report2.jrxml");
    Class.forName("com.mysql.jdbc.Driver").newInstance();
    Connection conn = null;conn = DriverManager.getConnection("jdbc:mysql://localhost/productexample_development","root","");
jasperPrint = JasperFillManager.fillReport(jasperReport,jasperParameter, conn);
JasperExportManager.exportReportToPdfFile(jasperPrint, "C://sample_report.pdf");
JasperExportManager.exportReportToHtmlFile(jasperPrint, "C://sample_report.HTML");