JAVA生成条形码

1、下载生成条形码所需要的jar包barcode4j.jar；

2、java生成条形码代码

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;

import javax.imageio.ImageIO;

import org.krysalis.barcode4j.HumanReadablePlacement;
import org.krysalis.barcode4j.impl.code128.Code128Bean;
import org.krysalis.barcode4j.impl.code39.Code39Bean;
import org.krysalis.barcode4j.output.bitmap.BitmapCanvasProvider;

/**
* <p>Title:Barcode4j.java</p>
* <p>Description: 生成条形码
* barcode4j是使用datamatrix的二维码生成算法，为支持qr的算法
* datamatrix是欧美的标准，qr为日本的标准，
* barcode4j一般生成出来是长方形的
* </p>
* <p>Copyright: Copyright (c) 2013</p>
* @version 1.0
*/
public class Barcode4j {

public static void generateCode128Barcode(File file, String code) {
Code128Bean bean = new Code128Bean();
final int dpi = 150;

//barcode
bean.setModuleWidth(0.21);
bean.setHeight(15);
bean.doQuietZone(true);
bean.setQuietZone(2);//两边空白区
//human-readable
bean.setFontName("Helvetica");
bean.setFontSize(3);
bean.setMsgPosition(HumanReadablePlacement.HRP_BOTTOM);

OutputStream out = null;

try {
out = new FileOutputStream(file);

BitmapCanvasProvider canvas = new BitmapCanvasProvider(out,
"image/jpeg", dpi, BufferedImage.TYPE_BYTE_BINARY, true, 0);
bean.generateBarcode(canvas, code);
canvas.finish();
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (out != null)
out.close();
} catch (IOException e) {
e.printStackTrace();
}
}

}

public static void generateCode39Barcode(int mode, File file, String code) {
Code39Bean bean = new Code39Bean();
// Dot Per Inch每英寸所打印的点数或线数，用来表示打印机打印分辨率。
final int dpi = 150;
// bean.setModuleWidth(UnitConv.in2mm(1.0f / dpi));
bean.setModuleWidth(0.2);
bean.setHeight(15);

bean.setWideFactor(3);
bean.doQuietZone(true);

OutputStream out = null;

try {
out = new FileOutputStream(file);

if (mode == 0) {
BitmapCanvasProvider canvas = new BitmapCanvasProvider(out,
"image/jpeg", dpi, BufferedImage.TYPE_BYTE_GRAY, false,
0);

bean.generateBarcode(canvas, code);

canvas.finish();

} else {
BitmapCanvasProvider canvas = new BitmapCanvasProvider(dpi,
BufferedImage.TYPE_BYTE_GRAY, true, 0);
bean.generateBarcode(canvas, code);
canvas.finish();
BufferedImage barcodeImage = canvas.getBufferedImage();

ImageIO.write(barcodeImage, "jpg", out);
}
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (out != null)
out.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}

public static void main(String[] args) {
String code = "ISN8859-52036";
generateCode39Barcode(0, new File("E:\\QRCodeTest\\barcode\\code39_0.jpg"), code);
generateCode39Barcode(1, new File("E:\\QRCodeTest\\barcode\\code39_1.jpg"), code);
generateCode128Barcode(new File("E:\\QRCodeTest\\barcode\\code128.jpg"), code);
}

}