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Listing Printers connected to the system using java print service

robin_smith123
on
Medium Priority
520 Views
Last Modified: 2012-08-13
Hi i m using PrintServiceLookup.lookupPrintServices() to list the printers present in the system in my web application.

But i see that the list does not change in my web page when i connect new printer to the system unless i restart the server.

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Mick BarryJava Developer
CERTIFIED EXPERT
Top Expert 2010

Commented:
try the following to refresh the list

    public void refresh() {
        try {
            Class[] classes = PrintServiceLookup.class.getDeclaredClasses();
            for (Class clazz : classes)
                if ("javax.print.PrintServiceLookup$Services".equals(clazz.getName())) {
                    AppContext.getAppContext().remove(clazz);
                    break;
                }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

Author

Commented:
AppContext.getAppContext().remove(clazz)
wts Appcontext and how to get that in my code
Java Developer
CERTIFIED EXPERT
Top Expert 2010
Commented:
import sun.awt.AppConext;

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Commented:
thanx!!!!
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