mavn pom.xml
<dependency><groupId>com.google.zxing</groupId><artifactId>javase</artifactId><version>3.5.3</version>
</dependency>java 测试类
import com.google.zxing.BinaryBitmap;
import com.google.zxing.common.HybridBinarizer;
import com.google.zxing.MultiFormatReader;
import com.google.zxing.NotFoundException;
import com.google.zxing.Result;
import com.google.zxing.client.j2se.BufferedImageLuminanceSource;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;public class QRCodeReader {public static String decodeQRCode(String filePath) {try {BufferedImage bufferedImage = ImageIO.read(new File(filePath));BinaryBitmap binaryBitmap = new BinaryBitmap(new HybridBinarizer(new BufferedImageLuminanceSource(bufferedImage)));Result result = new MultiFormatReader().decode(binaryBitmap);return result.getText();} catch (NotFoundException e) {System.err.println("No QR code found in the image.");} catch (IOException e) {System.err.println("Error reading the image file: " + e.getMessage());}return null;}public static void main(String[] args) {String filePath = QRCodeReader.class.getResource("/861393067237070.png").getPath();String qrCodeText = decodeQRCode(filePath);if (qrCodeText != null) {System.out.println("Decoded QR Code: " + qrCodeText);} else {System.out.println("Failed to decode QR code.");}}
}
重点关注：
main方法
