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

}