try{
            ExampleReport objkoneksi = new ExampleReport();
            Connection con =objkoneksi.bukakoneksi();
            String fileName="./src/Laporan/Report.jrxml";
            String filetoFill="./src/Laporan/Report.jasper";
            JasperCompileManager.compileReport(fileName);
            Map param= new HashMap();
            JasperFillManager.fillReport(filetoFill, param, con);
            JasperPrint jp=JasperFillManager.fillReport(filetoFill, param,con);
            JasperViewer.viewReport(jp,false);

        }catch(Exception ex){
               System.out.println(ex.toString());
        }
    }