rechercher un model d'imprimante

Version imprimable

Bonsoir

j'ai pu récupérer la liste d'imprimante de mon PC
mais je veux quand je clique sur le bouton OK , rechercher l'imprimante thermique et lancer l'impression

Code:

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PrintRequestAttributeSet pras = new HashPrintRequestAttributeSet();
            PrintService printService1[] = PrintServiceLookup.lookupPrintServices(
                  flavor, pras);
            for (int i = 0; i < printService1.length; i++)
            {
              System.out.println(printService1[i].getDefaultAttributeValue(PrinterMakeAndModel.class));
            }

Cdt

commence par utiliser getAttributes().get() au lieu de getDefaultAttributeValue(). Mais même ainsi ces valeurs sont null lorsque je teste ici, les autres attributs comme le fait de supporter la couleur ou pas sont remplis par contre (ce qui n'est pas le cas quand on utilise ta méthode).

Code:

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package printservice;
 
import java.util.Arrays;
import javax.print.DocFlavor;
import javax.print.PrintService;
import javax.print.PrintServiceLookup;
import javax.print.attribute.HashPrintRequestAttributeSet;
import javax.print.attribute.PrintRequestAttributeSet;
import javax.print.attribute.standard.ColorSupported;
import javax.print.attribute.standard.PDLOverrideSupported;
import javax.print.attribute.standard.PagesPerMinute;
import javax.print.attribute.standard.PagesPerMinuteColor;
import javax.print.attribute.standard.PrinterInfo;
import javax.print.attribute.standard.PrinterIsAcceptingJobs;
import javax.print.attribute.standard.PrinterLocation;
import javax.print.attribute.standard.PrinterMakeAndModel;
import javax.print.attribute.standard.PrinterMessageFromOperator;
import javax.print.attribute.standard.PrinterMoreInfo;
import javax.print.attribute.standard.PrinterMoreInfoManufacturer;
import javax.print.attribute.standard.PrinterName;
import javax.print.attribute.standard.PrinterState;
import javax.print.attribute.standard.PrinterStateReasons;
import javax.print.attribute.standard.PrinterURI;
import javax.print.attribute.standard.QueuedJobCount;
 
public class Main {
 
    public static void main(String... args) {
        PrintRequestAttributeSet pras = new HashPrintRequestAttributeSet();
        PrintService printService1[] = PrintServiceLookup.lookupPrintServices(DocFlavor.URL.PNG, pras);
        for (int i = 0; i < printService1.length; i++) {
            System.out.println(printService1[i].getDefaultAttributeValue(PrinterMakeAndModel.class));
        }
        Arrays.stream(PrintServiceLookup.lookupPrintServices(DocFlavor.URL.PNG, pras))
                .forEach(Main::outputPrintServiceDetails);
    }
 
    private static void outputPrintServiceDetails(final PrintService service) {
        System.out.println("--New Printer--");
        System.out.println(service.getName());
        System.out.printf("Supports color: %b%n", service.getAttributes().get(ColorSupported.class));
        System.out.printf("Page per minutes: %d%n", service.getAttributes().get(PagesPerMinute.class));
        System.out.printf("Page per minutes color: %d%n", service.getAttributes().get(PagesPerMinuteColor.class));
        System.out.printf("PDL override supported: %b%n", service.getAttributes().get(PDLOverrideSupported.class));
        System.out.printf("Printer info: %s%n", service.getAttributes().get(PrinterInfo.class));
        System.out.printf("Accepts jobs: %b%n", service.getAttributes().get(PrinterIsAcceptingJobs.class));
        System.out.printf("Printer location: %s%n", service.getAttributes().get(PrinterLocation.class));
        System.out.printf("Maker and model: %s%n", service.getAttributes().get(PrinterMakeAndModel.class));
        System.out.printf("Message from operator: %s%n", service.getAttributes().get(PrinterMessageFromOperator.class));
        System.out.printf("More info: %s%n", service.getAttributes().get(PrinterMoreInfo.class));
        System.out.printf("More info manufacturer: %s%n", service.getAttributes().get(PrinterMoreInfoManufacturer.class));
        System.out.printf("Printer name: %s%n", service.getAttributes().get( PrinterName.class));
        System.out.printf("State: %s%n", service.getAttributes().get( PrinterState.class));
        System.out.printf("State reasons: %s%n", service.getAttributes().get(PrinterStateReasons.class));
        System.out.printf("URI: %s%n", service.getAttributes().get(PrinterURI.class));
        System.out.printf("Queued job count: %s%n", service.getAttributes().get( QueuedJobCount.class));
    }
}

Donc pour moi pas mal d'info sont null peut-être que les serveur d'impression ou les pilotes ne fournissent pas correctement ces infos a mon ordi / Java.

07/09/2018, 02h23
sky88

merci j vais tester ça

Un peu plus de recherches, sur StackOverflow, qqun avec un probleme similaire se demande s'il ne faut pas completer les infos fournies par le PrintService par une requete reseau SNMP ou une requete au spooler local Windows via JNA.

Code:

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package printservice;
 
import com.sun.jna.platform.win32.Winspool;
import com.sun.jna.platform.win32.WinspoolUtil;
import java.util.Arrays;
import javax.print.DocFlavor;
import javax.print.PrintService;
import javax.print.PrintServiceLookup;
import javax.print.attribute.HashPrintRequestAttributeSet;
import javax.print.attribute.PrintRequestAttributeSet;
import javax.print.attribute.standard.ColorSupported;
import javax.print.attribute.standard.PDLOverrideSupported;
import javax.print.attribute.standard.PagesPerMinute;
import javax.print.attribute.standard.PagesPerMinuteColor;
import javax.print.attribute.standard.PrinterInfo;
import javax.print.attribute.standard.PrinterIsAcceptingJobs;
import javax.print.attribute.standard.PrinterLocation;
import javax.print.attribute.standard.PrinterMakeAndModel;
import javax.print.attribute.standard.PrinterMessageFromOperator;
import javax.print.attribute.standard.PrinterMoreInfo;
import javax.print.attribute.standard.PrinterMoreInfoManufacturer;
import javax.print.attribute.standard.PrinterName;
import javax.print.attribute.standard.PrinterState;
import javax.print.attribute.standard.PrinterStateReasons;
import javax.print.attribute.standard.PrinterURI;
import javax.print.attribute.standard.QueuedJobCount;
 
public class Main {
 
    public static void main(String... args) {
        PrintRequestAttributeSet pras = new HashPrintRequestAttributeSet();
        PrintService printService1[] = PrintServiceLookup.lookupPrintServices(DocFlavor.URL.PNG, pras);
        for (int i = 0; i < printService1.length; i++) {
            System.out.println(printService1[i].getDefaultAttributeValue(PrinterMakeAndModel.class));
        }
        Arrays.stream(PrintServiceLookup.lookupPrintServices(DocFlavor.URL.PNG, pras))
                .forEach(Main::outputPrintServiceDetails);
        Arrays.stream(WinspoolUtil.getAllPrinterInfo2())
                .forEach(Main::outputPrinterDetails);
    }
 
    private static void outputPrintServiceDetails(final PrintService service) {
        System.out.println("--New Printer--");
        System.out.println(service.getName());
        System.out.printf("Supports color: %b%n", service.getAttributes().get(ColorSupported.class));
        System.out.printf("Page per minutes: %d%n", service.getAttributes().get(PagesPerMinute.class));
        System.out.printf("Page per minutes color: %d%n", service.getAttributes().get(PagesPerMinuteColor.class));
        System.out.printf("PDL override supported: %b%n", service.getAttributes().get(PDLOverrideSupported.class));
        System.out.printf("Printer info: %s%n", service.getAttributes().get(PrinterInfo.class));
        System.out.printf("Accepts jobs: %b%n", service.getAttributes().get(PrinterIsAcceptingJobs.class));
        System.out.printf("Printer location: %s%n", service.getAttributes().get(PrinterLocation.class));
        System.out.printf("Maker and model: %s%n", service.getAttributes().get(PrinterMakeAndModel.class));
        System.out.printf("Message from operator: %s%n", service.getAttributes().get(PrinterMessageFromOperator.class));
        System.out.printf("More info: %s%n", service.getAttributes().get(PrinterMoreInfo.class));
        System.out.printf("More info manufacturer: %s%n", service.getAttributes().get(PrinterMoreInfoManufacturer.class));
        System.out.printf("Printer name: %s%n", service.getAttributes().get(PrinterName.class));
        System.out.printf("State: %s%n", service.getAttributes().get(PrinterState.class));
        System.out.printf("State reasons: %s%n", service.getAttributes().get(PrinterStateReasons.class));
        System.out.printf("URI: %s%n", service.getAttributes().get(PrinterURI.class));
        System.out.printf("Queued job count: %s%n", service.getAttributes().get(QueuedJobCount.class));
    }
 
    private static void outputPrinterDetails(final Winspool.PRINTER_INFO_2 info) {
        System.out.println("--INFO--");
        System.out.println(info.pServerName);
        System.out.println(info.pPrinterName);
        System.out.println(info.pShareName);
        System.out.println(info.pPortName);
        System.out.println(info.pDriverName);
        System.out.println(info.pComment);
        System.out.println(info.pLocation);
        System.out.println(info.pDevMode);
        System.out.println(info.pSepFile);
        System.out.println(info.pPrintProcessor);
        System.out.println(info.pDatatype);
        System.out.println(info.pParameters);
        System.out.println(info.pSecurityDescriptor);
        System.out.println(info.Attributes);
        System.out.println(info.Priority);
        System.out.println(info.DefaultPriority);
        System.out.println(info.StartTime);
        System.out.println(info.UntilTime);
        System.out.println(info.Status);
        System.out.println(info.cJobs);
        System.out.println(info.AveragePPM);
    }
}

Et ca donne effectivement plus d'info.