在不更改默认打印机的情况下用Java打印-Windows 10

Question

我正在用java打印一些东西，我注意到我的Systemwide Defaultprinter更改为上次使用的打印机。为什么？我的程序不应该那样做。有什么想法吗？

        String printerNameDesired = "Adobe PDF";
    PrintService[] service = PrinterJob.lookupPrintServices(); // list of printers
    DocPrintJob docPrintJob = null;
    int count = service.length;
    for (int i = 0; i < count; i++)
    {
        if (service[i].getName().equalsIgnoreCase(printerNameDesired))
        {
            docPrintJob = service[i].createPrintJob();
            i = count;
        }
    }
    PrinterJob job = PrinterJob.getPrinterJob();
    try
    {
        job.setPrintService(docPrintJob.getPrintService());
    }
    catch (PrinterException ex)
    {
        Logger.getLogger(HelloWorldPrinter.class.getName()).log(Level.SEVERE, null, ex);
    }
    PageFormat pf = job.defaultPage();
    Paper paper = new Paper();
    int margin = 0;
    paper.setImageableArea(margin, margin, paper.getWidth() - margin * 2, paper.getHeight() - margin * 2);
    pf.setPaper(paper);
    job.setPrintable(this, pf);
    //boolean ok = job.printDialog(); //ruft den auswahl-dialog auf
    try
    {
        job.print();
    }
    catch (PrinterException ex)
    {
        Logger.getLogger(HelloWorldPrinter.class.getName()).log(Level.SEVERE, null, ex);
    }

最后在"job.print（）；"中使用的打印机服务被设置为Windows"设备和打印机"中的默认打印机。任何帮助的Tnaks

Answer 1

这不是Java错误，而是Win 10功能，可以使用关闭

Start(Window)Icon/Settings/Devices/Printers & scanners/Let Windows manage my
default printer: Off

或者，在德国Windows上：

Start(Window)Icon/Einstellungen/Geräte/Drucker & Scanner/Standarddrucker von
Windows verwalten lassen: Aus