Any one uses javax.print API and works?

Question

I have just downloaded 1.4 beta2 SDK and imported all the javax.print classes. I use the most simple test code as the following:
FileInputStream fis = new FileInputStream("test.txt");
try {
DocFlavor psInFormat = DocFlavor.INPUT_STREAM.TEXT_PLAIN_US_ASCII;
Doc myDoc = new SimpleDoc(fis, psInFormat, null);
PrintRequestAttributeSet aset = new HashPrintRequestAttributeSet();
aset.add(new Copies(1));
aset.add(MediaSizeName.ISO_A4);
aset.add(Sides.ONE_SIDED);
PrintService[] services = PrintServiceLookup.lookupPrintServices(psInFormat, aset);
if (services.length > 0) {
DocPrintJob job = services[0].createPrintJob();
job.print(myDoc, aset);
} catch (Exception e) {System.out.println(e.getMessage());}
However, PrintServiceLookup.lookupPrintServices can't find my printer. I have 9 network printers connected to my system which range from HP LaserJet 4500 to 8100 and Acrobat PDFWriter. The API can't find any of my printer? What did I do wrong

Answer 1

Hi Guys,
First,
If your trying to print any document sent by the server from the client machine u have to write a applet which recieves the output in form of stream and then print it. I could do these with JPEG, GIF and ASCII but could not do it with PDF (The sun doesn't have a implementation for PDF document printing, they just have a declaration may future released will help us print PDF).
If u want the Print dialog box to appear use the following code that worked fine for me.
public class SomeClass
public static void main(String args[]) throws Exception
PrintRequestAttributeSet pras =     new HashPrintRequestAttributeSet();
DocFlavor flavor = DocFlavor.INPUTSTREAM.GIF;
PrintService printService[] = PrintServiceLookup.lookupPrintServices(flavor, pras);
PrintService defaultService = PrintServiceLookup.lookupDefaultPrintService();
PrintService service = ServiceUI.printDialog(null, 200, 200,printService, defaultService, flavor, pras);
if (defaultService != null)
DocPrintJob job = defaultService.createPrintJob();
FileInputStream fis = new FileInputStream("somefile.GIF");
DocAttributeSet das = new HashDocAttributeSet();
Doc doc = new SimpleDoc(byteArrayOutputStream, flavor, das);
job.print(doc, pras);
Thread.sleep(10000);
If u do not want the dialog box to appear and just print to the default printer of the local machine use the following code
public class SomeClass
public static void main(String args[]) throws Exception
PrintRequestAttributeSet pras =     new HashPrintRequestAttributeSet();
DocFlavor flavor = DocFlavor.INPUTSTREAM.GIF;
PrintService defaultService = PrintServiceLookup.lookupDefaultPrintService();
if (defaultService != null)
DocPrintJob job = defaultService.createPrintJob();
FileInputStream fis = new FileInputStream("somefile.GIF");
DocAttributeSet das = new HashDocAttributeSet();
Doc doc = new SimpleDoc(byteArrayOutputStream, flavor, das);
job.print(doc, pras);
Thread.sleep(10000);
Mean while if some body comes across any tweaks to print PDF documents using j2se1.4 please write to me at
[email protected]
Regards,
Madhu