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java中的条码打印怎样实现

编程控制条码打印机的有三种方式:1,直接使用条码打印机的驱动程序,把它当成普通打印机使用。条码可以使用条码字体或图形方式打樱2,使用条码打印机语言(脚本)直接送到打印机的端口,如并口,网口或usb口。

求用java代码控制斑马条码打印机打印二维码商标的例子程序

可以参考下.自己写的一个例子

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.Image;

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.util.Queue;

import com.google.zxing.WriterException;

public class QrPrint implements Printable {

public void print() throws PrinterException {

PrinterJob pj = PrinterJob.getPrinterJob();

PageFormat pf = pj.defaultPage();

Paper paper = new Paper();

double margin = 0.1; // half inch

paper.setImageableArea(margin, margin, paper.getWidth() - margin * 2,paper.getHeight() - margin * 2);

pf.setPaper(paper);

pj.setPrintable(this, pf);

pj.print();

}

public int print(Graphics graphics, PageFormat pageFormat, int pageIndex) throws PrinterException {

if ("判断如果打印完了就退出") {

return Printable.NO_SUCH_PAGE;

}

try {

Image eanImage = generateEANBufferedImage(content,120,20);

Graphics2D g2 = (Graphics2D) graphics;

g2.translate(pageFormat.getImageableX(), pageFormat.getImageableY()); //设置可成像的X和Y轴的距离

g2.drawImage(eanImage, 0, 80, null); //设置打印的边距

g2.drawString("字符串:",130,20);

} catch (WriterException e) {

e.printStackTrace();

return Printable.NO_SUCH_PAGE;

}

return Printable.PAGE_EXISTS;

}

private BufferedImage generateBufferedImage(String content,int width,int height) throws WriterException {

HashtableEncodeHintType,String hints = new HashtableEncodeHintType,String();

hints.put(EncodeHintType.CHARACTER_SET, "utf-8");

BitMatrix bitMatrix = new MultiFormatWriter().encode(content, BarcodeFormat.EAN_13, width, height, hints);

return MatrixToImageWriter.toBufferedImage(bitMatrix);

}

}

java如何驱动条形码打印机并能实现WEB打印?

参考 javax.print.*

大致过程是这样的:

写一个servlet,专门实现打印服务

这个servlet内是这样处理的:

1.获取打印机对象printer

通过枚举 PrintService printservices[] = PrintServiceLookup.lookupPrintServices(...)

2.生成DocPrintJob job=PrintService.createPrintJob();

3.生成文档 Doc doc = new SimpleDoc(...);

需要3个参数

第一个是打印的数据,可以根据条码,生成一幅图像,然把图像作为输入流,作为第一个参数

第二个参数用一个 DocFlavor.INPUT_STREAM 对象

DocFlavor类有相应的静态变量,你根据图像的mime类型选择

第三个参数是一个DocAttributeSet对象

4.打印

job.print(doc, pras);

这是我以前写的练习:

-----------------------------------------------------------------------

package printtest;

import java.io.*;

import javax.print.*;

import java.awt.*;

import java.awt.image.*;

import javax.imageio.*;

public class Application1

{

public static void test(String code)

{

try{

DocFlavor flavor=DocFlavor.INPUT_STREAM.JPEG;

//get a printer

PrintService[] printers=PrintServiceLookup.lookupPrintServices( flavor, null);

for( int i=0; iprinters.length; i++ ) System.out.println( printers[i].getName());

PrintService printer=printers[0];

//job

DocPrintJob job=printer.createPrintJob();

//document

BufferedImage img=new BufferedImage( 400,300, BufferedImage.TYPE_USHORT_555_RGB );

Graphics g=img.getGraphics();

g.drawString(code, 100,100);

ByteArrayOutputStream outstream=new ByteArrayOutputStream();

ImageIO.write( img, "jpg", outstream);

byte[] buf=outstream.toByteArray();

InputStream stream=new ByteArrayInputStream(buf);

Doc doc=new SimpleDoc(stream,flavor,null);

//print

job.print(doc, null);

}

catch(Exception e)

{

e.printStackTrace();

}

}

//Main method

public static void main(String[] args)

{

test("12345");

}

}