JAVA生成商品条形码（一维码），等比例放大/缩小图象
大家都晓得每件商品几乎都有属于自己的条形码！最近在公司做一个项目里面需要用到条形码！经研究非常简单！
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！
/*
2. * To change this template, choose Tools | Templates
3. * and open the template in the editor.
4. */
package com.zhilong.juyuansu.test;
import java.awt.image.BufferedImage;
import java.io.FileOutputStream;
import org.jbarcode.JBarcode;
import org.jbarcode.encode.EAN8Encoder;
import org.jbarcode.paint.EAN8TextPainter;
import org.jbarcode.paint.WidthCodedPainter;
import org.jbarcode.util.ImageUtil;
/**
* 2012-05-28
* @author 郏高阳
* 支持EAN13, EAN8, UPCA, UPCE, Code 3 of 9, Codabar, Code 11, Code 93, Code 128, MSI/Plessey, Interleaved 2 of PostNet等
*
*/
public class OneBarcodeUtil {
public static void main(String[] paramArrayOfString) {
try {
JBarcode localJBarcode = new JBarcode(EAN8Encoder.getInstance(),WidthCodedPainter.getInstance(),EAN8TextPainter.getInstance());
String str = "2219644";
BufferedImage localBufferedImage = localJBarcode.createBarcode(str);
saveToGIF(localBufferedImage, "EAN8.jpg");
}
catch (Exception localException) {
localException.printStackTrace();
}
}
static void saveToJPEG(BufferedImage paramBufferedImage, String paramString) {
saveToFile(paramBufferedImage, paramString, "jpeg");
}
static void saveToFile(BufferedImage paramBufferedImage, String paramString1, String paramString2) {
try {
FileOutputStream localFileOutputStream = new FileOutputStream("C:\\Users\\Administrator\\Desktop/" + paramString1);
ImageUtil.encodeAndWrite(paramBufferedImage, paramString2, localFileOutputStream, 96, 96);
localFileOutputStream.close();
}
catch (Exception localException) {
localException.printStackTrace();
}
}
}
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）
/**
* 等比例放大图象
*
* @param imgUrl 图像路径
* @param resultImgUrl 放大后的存放路径
* @param scale 放大倍数
* @throws IOException
*/
static void scale(String imgUrl, String resultImgUrl, int scale)
throws IOException {
BufferedImage src = ImageIO.read(new File(imgUrl));
int width = src.getWidth();
int height = src.getHeight();
width = width * scale;
height = height * scale;
Image image = src.getScaledInstance(width, height, Image.SCALE_DEFAULT);
BufferedImage tag = new BufferedImage(width, height,
BufferedImage.TYPE_INT_RGB);
Graphics g = tag.getGraphics();
g.drawImage(image, 0, 0, null);
g.dispose();
ImageIO.write(tag, "JPEG", new File(resultImgUrl));
}
❤犒劳一杯咖啡❤