java-zxing生成条形码(一维码)

Posted 2021-08-24 expisecm

安装zxing

导入jar包不需要dll

生成条形码 

package zxing;

import java.awt.image.BufferedImage;
import java.io.File;
import java.util.HashMap;

import javax.imageio.ImageIO;

import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
import com.google.zxing.client.j2se.MatrixToImageWriter;
import com.google.zxing.oned.Code128Writer;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;

public class Test3 {
	
	public static void main(String[] args) throws Exception {
		int w = 500;// 图片的宽度
		int h = 300;// 图片的高度
		String s = "expisecm";//条形码的内容
		String f = "png";//图片的格式
		HashMap<EncodeHintType, Object> m = new HashMap<>();//条形码的参数
		m.put(EncodeHintType.CHARACTER_SET, "utf-8");//设置编码
		m.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);//条形码的容错率,从小到大是L,M,Q,H,条形码的容错率越高越容易扫描
		m.put(EncodeHintType.MARGIN, 0);//条形码的边框宽度
		BufferedImage i = MatrixToImageWriter.toBufferedImage(new Code128Writer().encode(s, BarcodeFormat.CODE_128, w, h, m));//生成条形码的图片
		ImageIO.write(i, f, new File("D:\\\\1.png"));
	}
	
}

结果

D:\\1.png