可用barcode4j或zxing等第三方库,推荐zxing。
barcode4j资料链接:http://barcode4j.sourceforge.net/
zxing资料链接:https://github.com/zxing/zxing
关键代码:
DataMatrixBean bean = new DataMatrixBean();
final int dpi = 800;
String format = "image/png";
ByteArrayOutputStream ous = new ByteArrayOutputStream();
BitmapCanvasProvider canvas = new BitmapCanvasProvider(ous, format, dpi,BufferedImage.TYPE_BYTE_BINARY, false, 0);
bean.generateBarcode(canvas, info);
canvas.finish();
支持的条码格式有:
支持的二维码格式有:
可输出文件类型为: