JAVA实现条形码

1.引入pom依赖包

 
    net.sf.barcode4j
    barcode4j-light
    2.0
 

2.java代码实现生产条形码

package cn.itcast.myprintl;

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


import java.awt.image.BufferedImage;
import java.io.*;


public class BarcodeUtilsA {

    
    public static File generateFile(String msg, String path) {
        File file = new File(path);
        OutputStream outputStream = null;
        try {
            outputStream = new FileOutputStream(file);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
        try {
            generateBarCode128(msg, 10.0, 0.3, true, false, outputStream);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
        return file;
    }

    
    public static void generateBarCode128(String message, Double height, Double width, boolean withQuietZone, boolean hideText, OutputStream outputStream) {
        Code128Bean bean = new Code128Bean();

        // 分辨率，越大条形码就越大
        int dpi = 150;

        // 设置两侧是否留白
        bean.doQuietZone(withQuietZone);

        // 设置条形码高度和宽度
        bean.setBarHeight(height);
        if (width != null) {
            bean.setModuleWidth(width);
        }
        // 设置文本位置（包括是否显示）
        if (hideText) {
            bean.setMsgPosition(HumanReadablePlacement.HRP_NONE);
        }
        // 设置图片类型
        String format = "image/png";
        BitmapCanvasProvider canvas = new BitmapCanvasProvider(outputStream, format, dpi,
                BufferedImage.TYPE_BYTE_BINARY, false, 0);

        
        bean.generateBarcode(canvas, message);
        try {
            canvas.finish();
        } catch (IOException e) {
            //ByteArrayOutputStream won't happen
        }
    }

    public static void main(String[] args) {
        String msg = "20220602ZXY";
        //生成条形码路径
        String path = "C:\Users\jkl\Desktop\tesst\barcode1.png";
        generateFile(msg, path);
    }
}

3.效果图