package com.example.demo.QRcode;
import java.io.IOException;
import java.nio.file.FileSystems;
import java.nio.file.Path;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.WriterException;
import com.google.zxing.client.j2se.MatrixToImageWriter;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.qrcode.QRCodeWriter;
public class QRCodeGenerator {
private static final String QR_CODE_IMAGE_PATH = "二维码保存地址";
private static void generateQRCodeImage(String text, int width, int height, String filePath) throws WriterException, IOException {
QRCodeWriter qrCodeWriter = new QRCodeWriter();
BitMatrix bitMatrix = qrCodeWriter.encode(text, BarcodeFormat.QR_CODE, width, height);
Path path = FileSystems.getDefault().getPath(filePath);
MatrixToImageWriter.writeToPath(bitMatrix, "PNG", path);
}
public static void main(String[] args) {
try {
generateQRCodeImage("扫描二维码后展示的文字,目前只支持英文(英语不好的可以借助翻译软件)", 300, 300, QR_CODE_IMAGE_PATH);
} catch (WriterException e) {
System.out.println("Could not generate QR Code, WriterException :: " + e.getMessage());
} catch (IOException e) {
System.out.println("Could not generate QR Code, IOException :: " + e.getMessage());
}
}
}