没有找到打印服务错误消息

Question

我开始使用以下代码创建一个简单的Java应用程序来打印“Hello World”：

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.awt.print.*;

public class HelloWorldPrinter implements Printable, ActionListener { 

public int print(Graphics g, PageFormat pf, int page) throws
                                                    PrinterException {

    if (page > 0) { /* We have only one page, and 'page' is zero-based */
        return NO_SUCH_PAGE;
    }

    /* User (0,0) is typically outside the imageable area, so we must
     * translate by the X and Y values in the PageFormat to avoid clipping
     */
    Graphics2D g2d = (Graphics2D)g;
    g2d.translate(pf.getImageableX(), pf.getImageableY());

    /* Now we perform our rendering */
    g.drawString("Hello world!", 100, 100);

    /* tell the caller that this page is part of the printed document */
    return PAGE_EXISTS;
}

public void actionPerformed(ActionEvent e) {
     PrinterJob job = PrinterJob.getPrinterJob();
     job.setPrintable(this);
     boolean ok = job.printDialog();
     if (ok) {
         try {
              job.print();
         } catch (PrinterException ex) {
          /* The job did not successfully complete */
         }
     }
}

public static void main(String args[]) {

    UIManager.put("swing.boldMetal", Boolean.FALSE);
    JFrame f = new JFrame("Hello World Printer");
    f.addWindowListener(new WindowAdapter() {
       public void windowClosing(WindowEvent e) {System.exit(0);}
    });
    JButton printButton = new JButton("Print Hello World");
    printButton.addActionListener(new HelloWorldPrinter());
    f.add("Center", printButton);
    f.pack();
    f.setVisible(true);
}
} 

这不起作用，我收到“未找到打印服务”的警告信息。

我使用的是Ubuntu 12.04，Java版本是1.7.0_25。

如何摆脱这种警报？

Answer 1

安装cups-pdf，它将安装一个创建PDF文件的虚拟打印机：

sudo apt-get install cups-pdf

Answer 2

这就是我在Arch Linux上打印到PDF的方式：

1. sudo pacman -S cups-pdf
2. sudo systemctl enable org.cups.cupsd.service
3. sudo systemctl start org.cups.cupsd.service
4. 使用sudo system-config-printer添加打印机“ Generic CUPS-PDF”，请参见下面的屏幕截图
5. 创建的PDF位于/var/spool/cups-pdf/$USER
中
6. 要更改输出目录，请在Out中编辑/etc/cups/cups-pdf.conf配置键