用Java打印到标签打印机 [英] Printing in Java to Label Printer
本文介绍了用Java打印到标签打印机的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我无法打印到标签打印机。下面的代码在一个上打印4个标签（附加标签图片）。
I am having trouble printing to a label printer. The code below prints 4 "labels" on one (Picture of Label Attached).
下面的代码打印到兄弟QL-500标签打印机。它打印到3.5×1.1标签上。
The code below prints to a brother QL-500 label printer. It prints onto 3.5" by 1.1" labels.
如果有人能帮我更好地理解代码，也会很棒。
It would also be great if someone could help me better understand the code.
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.print.PageFormat;
import java.awt.print.Paper;
import java.awt.print.Printable;
import java.awt.print.PrinterException;
import java.awt.print.PrinterJob;
import java.text.DateFormat;
import java.util.Date;
import java.util.Locale;
import javax.print.PrintService;
public class DYMOLabelPrintConnector implements Printable {
public static final String PRINTERNAME = "DYMO LabelWriter 400";
public static final boolean PRINTMENU = false;
public static void main(String[] args) {
PrinterJob printerJob = PrinterJob.getPrinterJob();
PageFormat pageFormat = printerJob.defaultPage();
Paper paper = new Paper();
final double widthPaper = (1.2 * 72);
final double heightPaper = (1.5 * 72);
paper.setSize(widthPaper, heightPaper);
paper.setImageableArea(0, 0, widthPaper, heightPaper);
pageFormat.setPaper(paper);
pageFormat.setOrientation(PageFormat.LANDSCAPE);
if (PRINTMENU) {
if (printerJob.printDialog()) {
printerJob.setPrintable(new DYMOLabelPrintConnector(), pageFormat);
try {
printerJob.print();
} catch (PrinterException e) {
e.printStackTrace();
}
}
} else {
PrintService[] printService = PrinterJob.lookupPrintServices();
for (int i = 0; i < printService.length; i++) {
System.out.println(printService[i].getName());
if (printService[i].getName().compareTo(PRINTERNAME) == 0) {
try {
printerJob.setPrintService(printService[i]);
printerJob.setPrintable(new DYMOLabelPrintConnector(), pageFormat);
printerJob.print();
} catch (PrinterException e) {
e.printStackTrace();
}
}
}
}
System.exit(0);
}
public String getValue(final int elementOnLabel, final int labelCounter) {
String value = "";
switch (elementOnLabel) {
case 0:
// what ever you want to have in this line
value = "SetupX";
break;
case 1:
// what ever you want to have in this line
value = "fiehnlab.ucd";
break;
case 2:
// what ever you want to have in this line
value = "id: " + labelCounter;
break;
case 3:
// what ever you want to have in this line
// TODO - add DB connection
value = "label:" + elementOnLabel;
break;
case 4:
// what ever you want to have in this line
value = DateFormat.getDateInstance(DateFormat.SHORT, Locale.US).format(new Date());
break;
default:
break;
}
return value;
}
public int print(Graphics graphics, PageFormat pageFormat, int pageIndex)
throws PrinterException {
System.out.println("printing page: " + pageIndex);
if (pageIndex < getPageNumbers()) {
Graphics2D g = (Graphics2D) graphics;
// g.translate(pageFormat.getImageableX(), pageFormat.getImageableY());
g.translate(20, 10);
String value = "";
pageIndex = pageIndex + 1;
// specific for four circular labels per page
for (int x = 0; x < 80; x = x + 50) {
for (int y = 0; y < 80; y = y + 36) {
int posOnPage = 4; // BottomRight, TopRight, BottomLeft, TopLeft
if (x > 0) {
posOnPage = posOnPage - 2;
}
if (y > 0) {
posOnPage = posOnPage - 1;
}
// current counter for the label.
int id = (posOnPage - 1) + ((pageIndex - 1) * 4);
// setupx
g.setFont(new Font(g.getFont().getFontName(), g.getFont().getStyle(), 3));
value = this.getValue(0, id);
g.drawString(" " + value, x, y);
// fiehnlab
g.setFont(new Font(g.getFont().getFontName(), g.getFont().getStyle(), 3));
value = this.getValue(1, id);
g.drawString(" " + value, x, y + 4);
// ID
g.setFont(new Font(g.getFont().getFontName(), Font.BOLD, 7));
value = this.getValue(2, id);
g.drawString("" + value, x, y + 10);
// label
g.setFont(new Font(g.getFont().getFontName(), g.getFont().getStyle(), 5));
value = this.getValue(3, id);
g.drawString(" " + value, x, y + 16);
// date
g.setFont(new Font(g.getFont().getFontName(), Font.PLAIN, 3));
value = this.getValue(4, id);
g.drawString(" " + value, x, y + 20);
}
}
return PAGE_EXISTS;
} else {
return NO_SUCH_PAGE;
}
}
public int getPageNumbers() {
return 5;
}
}
enter code here
这是什么打印：
推荐答案
哇，我不能告诉你我有多喜欢用Java打印，当它工作时，它很棒......
Wow, I can't tell you how much I love printing in Java, when it works, it's great...
。
public class PrinterTest {
public static void main(String[] args) {
PrinterJob pj = PrinterJob.getPrinterJob();
if (pj.printDialog()) {
PageFormat pf = pj.defaultPage();
Paper paper = pf.getPaper();
double width = fromCMToPPI(3.5);
double height = fromCMToPPI(8.8);
paper.setSize(width, height);
paper.setImageableArea(
fromCMToPPI(0.25),
fromCMToPPI(0.5),
width - fromCMToPPI(0.35),
height - fromCMToPPI(1));
System.out.println("Before- " + dump(paper));
pf.setOrientation(PageFormat.PORTRAIT);
pf.setPaper(paper);
System.out.println("After- " + dump(paper));
System.out.println("After- " + dump(pf));
dump(pf);
PageFormat validatePage = pj.validatePage(pf);
System.out.println("Valid- " + dump(validatePage));
//Book book = new Book();
//book.append(new MyPrintable(), pf);
//pj.setPageable(book);
pj.setPrintable(new MyPrintable(), pf);
try {
pj.print();
} catch (PrinterException ex) {
ex.printStackTrace();
}
}
}
protected static double fromCMToPPI(double cm) {
return toPPI(cm * 0.393700787);
}
protected static double toPPI(double inch) {
return inch * 72d;
}
protected static String dump(Paper paper) {
StringBuilder sb = new StringBuilder(64);
sb.append(paper.getWidth()).append("x").append(paper.getHeight())
.append("/").append(paper.getImageableX()).append("x").
append(paper.getImageableY()).append(" - ").append(paper
.getImageableWidth()).append("x").append(paper.getImageableHeight());
return sb.toString();
}
protected static String dump(PageFormat pf) {
Paper paper = pf.getPaper();
return dump(paper);
}
public static class MyPrintable implements Printable {
@Override
public int print(Graphics graphics, PageFormat pageFormat,
int pageIndex) throws PrinterException {
System.out.println(pageIndex);
int result = NO_SUCH_PAGE;
if (pageIndex < 2) {
Graphics2D g2d = (Graphics2D) graphics;
System.out.println("[Print] " + dump(pageFormat));
double width = pageFormat.getImageableWidth();
double height = pageFormat.getImageableHeight();
g2d.translate((int) pageFormat.getImageableX(),
(int) pageFormat.getImageableY());
g2d.draw(new Rectangle2D.Double(1, 1, width - 1, height - 1));
FontMetrics fm = g2d.getFontMetrics();
g2d.drawString("0x0", 0, fm.getAscent());
result = PAGE_EXISTS;
}
return result;
}
}
}
我知道一个如果你尝试指定纸张尺寸和边距，那么PrintDialog会做出不和谐的事情，但老实说，这是另一天的问题。
I'm aware of a number of inconsistencies with the PrintDialog doing werid and wonderful things if you try and specify Paper sizes and margins, but honestly, that's a question for another day.
代码I' ve posted能够在我的Dymo LabelWriter 400 Turbo上一个接一个地打印两个标签
The code I've posted was capable for printing two labels one after the other without issue on my Dymo LabelWriter 400 Turbo
更新
还应提及，我认为你基本上缺少 PageFormat.setPaper
使用Barbaque BarCode更新
从文件示例打印...
Print from file example...
Barcode b = BarcodeFactory.createCode128("Hello");
b.setResolution(72);
File f = new File("mybarcode.png");
// Let the barcode image handler do the hard work
BarcodeImageHandler.savePNG(b, f);
.
.
.
public static class PrintFromFile implements Printable {
@Override
public int print(Graphics graphics, PageFormat pageFormat, int pageIndex) throws PrinterException {
int result = NO_SUCH_PAGE;
if (pageIndex == 0) {
graphics.translate((int)pageFormat.getImageableX(), (int)pageFormat.getImageableY());
result = PAGE_EXISTS;
try {
// You may want to rescale the image to better fit the label??
BufferedImage read = ImageIO.read(new File("mybarcode.png"));
graphics.drawImage(read, 0, 0, null);
} catch (IOException ex) {
ex.printStackTrace();
}
}
return result;
}
}
直接打印到图形上下文
Barcode b = BarcodeFactory.createCode128("Hello");
b.setResolution(72);
.
.
.
public static class PrintToGraphics implements Printable {
private Barcode b;
private PrintToGraphics(Barcode b) {
this.b = b;
}
@Override
public int print(Graphics graphics, PageFormat pageFormat, int pageIndex) throws PrinterException {
int result = NO_SUCH_PAGE;
if (pageIndex == 0) {
result = PAGE_EXISTS;
int x = (int)pageFormat.getImageableX();
int y = (int)pageFormat.getImageableY();
int width = (int)pageFormat.getImageableWidth();
int height = (int)pageFormat.getImageableHeight();
graphics.translate(x, y);
try {
b.draw((Graphics2D)graphics, 0, 0);
} catch (OutputException ex) {
ex.printStackTrace();
}
}
return result;
}
}
最后但不是至少，直接来自下载的examples目录
Last but not least, directly from the "examples" directory of the download
public class PrintingExample
{
public static void main(String[] args)
{
try
{
Barcode b = BarcodeFactory.createCode128("Hello");
PrinterJob job = PrinterJob.getPrinterJob();
job.setPrintable(b);
if (job.printDialog())
{
job.print();
}
}
catch (Exception e)
{
e.printStackTrace();
}
}
}
这篇关于用Java打印到标签打印机的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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