JAVA生成商品条形码（一维码），等比例放大/缩小图象

利用：jbarcode.jar轻松生成各种条形码

http://www.oschina.net/p/jbarcode

http://sourceforge.net/projects/jbcode/

本人亲手扫描，成功可用！

01

/*

02	2. * To change this template, choose Tools | Templates

03	3. * and open the template in the editor.

04

4. */

05

06	package com.zhilong.juyuansu.test;

07

08	import java.awt.image.BufferedImage;

09	import java.io.FileOutputStream;

10	import org.jbarcode.JBarcode;

11	import org.jbarcode.encode.EAN8Encoder;

12	import org.jbarcode.paint.EAN8TextPainter;

13	import org.jbarcode.paint.WidthCodedPainter;

14	import org.jbarcode.util.ImageUtil;

15

/**

16	* 2012-05-28

17	* <a href="http://my.oschina.net/arthor" target="_blank" rel="nofollow">@author</a> 郏高阳

18	* 支持EAN13, EAN8, UPCA, UPCE, Code 3 of 9, Codabar, Code 11, Code 93, Code 128, MSI/Plessey, Interleaved 2 of PostNet等

19

*

20

*/

21	public class OneBarcodeUtil {

22

23	public static void main(String[] paramArrayOfString) {

24

try {

25	JBarcode localJBarcode = new JBarcode(EAN8Encoder.getInstance(),WidthCodedPainter.getInstance(),EAN8TextPainter.getInstance());

26	String str = "2219644";

27	BufferedImage localBufferedImage = localJBarcode.createBarcode(str);

28

29	saveToGIF(localBufferedImage, "EAN8.jpg");

30

}

31	catch (Exception localException) {

32	localException.printStackTrace();

33

}

34

}

35

36	static void saveToJPEG(BufferedImage paramBufferedImage, String paramString) {

37	saveToFile(paramBufferedImage, paramString, "jpeg");

38

}

39

40	static void saveToFile(BufferedImage paramBufferedImage, String paramString1, String paramString2) {

41

try {

42	FileOutputStream localFileOutputStream = new FileOutputStream("C:\\Users\\Administrator\\Desktop/" + paramString1);

43	ImageUtil.encodeAndWrite(paramBufferedImage, paramString2, localFileOutputStream, 96, 96);

44	localFileOutputStream.close();

45

}

46	catch (Exception localException) {

47	localException.printStackTrace();

48

}

49

}

50

}

 格式为：EAN8条形码！(EAN8格式为7位数组成，最后以为随机编号！拥有60%的市场)

等比例放大图片（小做修改就可以缩小）

 

01

/**

02

* 等比例放大图象

03

*

04	* @param imgUrl 图像路径

05	* @param resultImgUrl 放大后的存放路径

06	* @param scale 放大倍数

07	* @throws IOException

08

*/

09	static void scale(String imgUrl, String resultImgUrl, int scale)

10	throws IOException {

11	BufferedImage src = ImageIO.read(new File(imgUrl));

12	int width = src.getWidth();

13	int height = src.getHeight();

14

15	width = width * scale;

16	height = height * scale;

17

18	Image image = src.getScaledInstance(width, height, Image.SCALE_DEFAULT);

19	BufferedImage tag = new BufferedImage(width, height,

20	BufferedImage.TYPE_INT_RGB);

21	Graphics g = tag.getGraphics();

22	g.drawImage(image, 0, 0, null);

23	g.dispose();

24	ImageIO.write(tag, "JPEG", new File(resultImgUrl));

25

}