效果图

1.引入pom

com.google.zxingcore3.3.3com.google.zxingjavase3.3.3

2.工具类

import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.WriterException;
import com.google.zxing.client.j2se.MatrixToImage