<dependency>

<groupId>net.sf.barcode4j</groupId>

<artifactId>barcode4j-light</artifactId>

<version>2.0</version>

</dependency>

package utils;

import java.awt.image.BufferedImage;

import java.io.ByteArrayOutputStream;

import java.io.File;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.OutputStream;

import org.apache.commons.lang.StringUtils;

import org.krysalis.barcode4j.impl.code39.Code39Bean;

import org.krysalis.barcode4j.output.bitmap.BitmapCanvasProvider;

import org.krysalis.barcode4j.tools.UnitConv;

/**

 * 条形码工具类

 *

 * @author tangzz

 * @createDate 2015年9月17日

 *

 */

public class BarcodeUtil {

    /**

     * 生成文件

     *

     * @param msg

     * @param path

     * @return

     */

    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;

    }

    /**

     * 生成字节

     *

     * @param msg

     * @return

     */

    public static byte[] generate(String msg) {

        ByteArrayOutputStream ous = new ByteArrayOutputStream();

        generate(msg, ous);

        return ous.toByteArray();

    }

    /**

     * 生成到流

     *

     * @param msg

     * @param ous

     */

    public static void generate(String msg, OutputStream ous) {

        if (StringUtils.isEmpty(msg) || ous == null) {

            return;

        }

        Code39Bean bean = new Code39Bean();

        // 精细度

        final int dpi = 150;

        // module宽度

        final double moduleWidth = UnitConv.in2mm(1.0f / dpi);

        // 配置对象

        bean.setModuleWidth(moduleWidth);

        bean.setWideFactor(3);

        bean.doQuietZone(false);

        String format = "image/png";

        try {

            // 输出到流

            BitmapCanvasProvider canvas = new BitmapCanvasProvider(ous, format, dpi,

                    BufferedImage.TYPE_BYTE_BINARY, false, 0);

            // 生成条形码

            bean.generateBarcode(canvas, msg);

            // 结束绘制

            canvas.finish();

        } catch (IOException e) {

            throw new RuntimeException(e);

        }

    }

    public static void main(String[] args) {

        String msg = "123456789";

        String path = "barcode.png";

        generateFile(msg, path);

    }

}