L'invio di testo normale alla stampante predefinita

Question

sto cercando di inviare una semplice stringa ("Ciao mondo") per la stampante, ma per qualche ragione, viene stampato solo il primo carattere ("H")

Ecco il codice

public class CardPrinter { 
    public static void main(String[] args) { 
     try { 
      PrintService mPrinter = null; 
      Boolean bFoundPrinter = false; 

      PrintService[] printServices = PrinterJob.lookupPrintServices(); 

      // 
      // Iterates the print services and print out its name. 
      // 
      for (PrintService printService : printServices) { 
       String sPrinterName = printService.getName(); 
       if (sPrinterName.equals("DTC4000 Card Printer")) { 
        mPrinter = printService; 
        bFoundPrinter = true; 
       } 
      } 

      // Open the image file 
      String testData = "Hello World !"; 
      InputStream is = new ByteArrayInputStream(testData.getBytes()); 
      DocFlavor flavor = DocFlavor.INPUT_STREAM.AUTOSENSE ; 

      // Find the default service 
      PrintService service = PrintServiceLookup.lookupDefaultPrintService(); 
      System.out.println(service); 

      // Create the print job 
      DocPrintJob job = service.createPrintJob(); 
      Doc doc= new SimpleDoc(is, flavor, null); 

      // Monitor print job events; for the implementation of PrintJobWatcher, 
      PrintJobWatcher pjDone = new PrintJobWatcher(job); 

      // Print it 
      job.print(doc, null); 

      // Wait for the print job to be done 
      pjDone.waitForDone(); 

      // It is now safe to close the input stream 
      is.close(); 
     } catch (PrintException e) { 
      e.printStackTrace(); 
     } catch (IOException e) { 
      e.printStackTrace(); 
     } 
    } 

    static class PrintJobWatcher { 
     // true iff it is safe to close the print job's input stream 
     boolean done = false; 

     PrintJobWatcher(DocPrintJob job) { 
      // Add a listener to the print job 
      job.addPrintJobListener(new PrintJobAdapter() { 
       public void printJobCanceled(PrintJobEvent pje) { 
        allDone(); 
       } 
       public void printJobCompleted(PrintJobEvent pje) { 
        allDone(); 
       } 
       public void printJobFailed(PrintJobEvent pje) { 
        allDone(); 
       } 
       public void printJobNoMoreEvents(PrintJobEvent pje) { 
        allDone(); 
       } 
       void allDone() { 
        synchronized (PrintJobWatcher.this) { 
         done = true; 
         PrintJobWatcher.this.notify(); 
        } 
       } 
      }); 
     } 
     public synchronized void waitForDone() { 
      try { 
       while (!done) { 
        wait(); 
       } 
      } catch (InterruptedException e) { 
      } 
     } 
    } 
} 

Qualche idea?

Answer 1

Aggiunta di un avanzamento,

String testData = "Hello World !\f"; 

risolto il problema