How to print JasperPrint directly on a printer?

Question

I use Java to create a report using JasperReports. I want the user to be able to print directly, without a print dialog.
I create JasperPrint, and I know the name and model of my printer.

I also looked at the sample here, but couldn't figure out how to do this.
I am using Java 1.7 and the latest JasperReports library.

Does anyone know how to do this?

public class PrintApp  {

    public static void print() {
        JasperPrint jasperPrint = getJasperPrint();
            String printername = AllPrinter.getDepartmentPrinter("Admin");
             // where should i introduce my printer name to jasperreports?
            JasperPrintManager.printReport(jasperPrint, false);
    }

    private static JasperPrint getJasperPrint() {
            return JasperPrinterCreator.getJasperprint();
    }
}

Answer 1

I solved it as shown below, hope this helps someone else.

public class PrintApp  {

    public static void print() {
            JasperPrint jasperPrint = getJasperPrint();
            String selectedPrinter = AllPrinter.getDepartmentPrinter("Admin");

            PrinterJob printerJob = PrinterJob.getPrinterJob();
            PrintService[] services = PrintServiceLookup.lookupPrintServices(null, null);
            PrintService selectedService = null;

            if(services.length != 0 || services != null)
            {
                for(PrintService service : services){
                    String existingPrinter = service.getName().toLowerCase();
                    if(existingPrinter.equals(selectedPrinter))
                    {
                        selectedService = service;
                        break;
                    }
                }

                if(selectedService != null)
                {
                    printerJob.setPrintService(selectedService);
                    boolean printSucceed = JasperPrintManager.printReport(mainPrint, false);
                }
    }

    private static JasperPrint getJasperPrint() {
            return JasperPrinterCreator.getJasperprint();
    }
}

Answer 2

private void PrintReportToPrinter(JasperPrint jp, String impresora) {
    try {
        // TODO Auto-generated method stub
        PrintRequestAttributeSet printRequestAttributeSet = new HashPrintRequestAttributeSet();
        // printRequestAttributeSet.add(MediaSizeName.ISO_A4); //setting page size
        printRequestAttributeSet.add(new Copies(1));

        PrinterName printerName = new PrinterName(impresora, null); //gets printer

        PrintServiceAttributeSet printServiceAttributeSet = new HashPrintServiceAttributeSet();
        printServiceAttributeSet.add(printerName);

        JRPrintServiceExporter exporter = new JRPrintServiceExporter();

        exporter.setParameter(JRExporterParameter.JASPER_PRINT, jp);
        exporter.setParameter(JRPrintServiceExporterParameter.PRINT_REQUEST_ATTRIBUTE_SET, printRequestAttributeSet);
        exporter.setParameter(JRPrintServiceExporterParameter.PRINT_SERVICE_ATTRIBUTE_SET, printServiceAttributeSet);
        exporter.setParameter(JRPrintServiceExporterParameter.DISPLAY_PAGE_DIALOG, Boolean.FALSE);
        exporter.setParameter(JRPrintServiceExporterParameter.DISPLAY_PRINT_DIALOG, Boolean.FALSE);
        exporter.exportReport();
    } catch (JRException ex) {
         JOptionPane.showMessageDialog(null,"Cancelo Impresion");
    }
}