Java生成条形码code128

前言

(51条消息) Java生成条形码code128_明明如月学长的博客-CSDN博客_code128bean怎么谁知两侧留白

public class BarcodeUtil {


    public static File generateFile(String msg, String path) {
        File file = new File(path);
        try {
            generate(msg, new FileOutputStream(file));
        } catch (FileNotFoundException e) {
            throw new RuntimeException(e);
        }
        return file;
    }


    public static byte[] generate(String msg) {
        ByteArrayOutputStream ous = new ByteArrayOutputStream();
        generate(msg, ous);
        return ous.toByteArray();
    }
    public static void generate(String msg, OutputStream ous) {
        if (StringUtils.isEmpty(msg) || ous == null) {
            return;
        }

        Code128Bean bean = new Code128Bean();
        final int dpi = 512;
        final double moduleWidth = UnitConv.in2mm(2.0f / dpi);
        bean.setModuleWidth(moduleWidth);
        bean.setHeight(30);
        bean.doQuietZone(false);
        HumanReadablePlacement none = HumanReadablePlacement.byName("none");
        bean.setMsgPosition(none);

        String format = "image/png";
        try {

            BitmapCanvasProvider canvas = new BitmapCanvasProvider(ous, format, dpi,
                    BufferedImage.TYPE_BYTE_BINARY, false, 0);
            bean.generateBarcode(canvas, msg);

            canvas.finish();
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }



}