Print a file txt in java

Question

Hi
I want to print a file txt in java. I use this code, but the printer receive an empty page. Why???
This is the code: (the fileLocation is right, I've checked this).
private void printFileTextPlain(String fileLocation){
// Attribute Set storage
PrintRequestAttributeSet pras = new HashPrintRequestAttributeSet();
// We're looking for PostScript-capable printers
DocFlavor flavor = DocFlavor.INPUT_STREAM.AUTOSENSE;
// Return list of printers capable of printing PostScript
PrintService printService[] =
PrintServiceLookup.lookupPrintServices(flavor, pras);
// Get the default printer
PrintService defaultService = PrintServiceLookup.lookupDefaultPrintService();
// Display the print dialog with default printer selected
// --->>> CON DEFAULT PRINTER PrintService service = ServiceUI.printDialog(null, 200, 200, printService, defaultService, flavor, pras);
PrintService service = ServiceUI.printDialog(null, 200, 200, printService, null, flavor, pras);
// If user selected "OK"...
try{
if (service != null) {
// Create a print job
DocPrintJob job = service.createPrintJob();
InputStream is = new BufferedInputStream(new FileInputStream(fileLocation));
//JarInputStream jis = new java.util.jar.JarInputStream(new FileInputStream(new File(fileLocation)));
//jis.getNextEntry();
// Create storage for attributes
DocAttributeSet das = new HashDocAttributeSet();
Doc doc = new SimpleDoc(is, flavor, das);
// Print the job
job.print(doc, pras);
// Wait a few seconds for job to spool
Thread.sleep(10000);
is.close();
catch (IOException e) {
JOptionPane.showMessageDialog(null, "Errore nella generazione del file di stampa","Attenzione", JOptionPane.ERROR_MESSAGE);
//log error
log.error("printFile(): "+e.getMessage(),e);
catch (PrintException pe) {
JOptionPane.showMessageDialog(null, "Errore nella generazione del file di stampa","Attenzione", JOptionPane.ERROR_MESSAGE);
//log error
log.error("printFile(): "+pe.getMessage(),pe);
catch (InterruptedException ie) {
JOptionPane.showMessageDialog(null, "Errore nella generazione del file di stampa","Attenzione", JOptionPane.ERROR_MESSAGE);
//log error
log.error("printFile(): "+ie.getMessage(),ie);
}

Answer 1

There is no speciall handling needed for unicode chars. Problam seems that the viewer that you are using to view the file does not support unicode or the font it is using is not a unicode fond which support chinese chars.
If you switch to a unicode supported viewer and chinese supported unicode font then you should ge the chars properly