Read_QR.java

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package Entity;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import javax.imageio.ImageIO;
import com.google.zxing.BinaryBitmap;
import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatReader;
import com.google.zxing.NotFoundException;
import com.google.zxing.Result;
import com.google.zxing.WriterException;
import com.google.zxing.client.j2se.BufferedImageLuminanceSource;
import com.google.zxing.common.HybridBinarizer;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
/**
 *
 * @author mazen
 */
public class Read_QR {
    public static void main(String[] args) throws WriterException, IOException,
        NotFoundException {
            try {
                String filePath = "C:\\Users\\Amine\\Documents\\NetBeansProjects\\Taland\\codeqr.png";
                String charset = "UTF-8";
                Map < EncodeHintType, ErrorCorrectionLevel > hintMap = new HashMap < EncodeHintType, ErrorCorrectionLevel > ();
                hintMap.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L);
                System.out.println("Data read from QR Code: " + readQRCode(filePath, charset, hintMap));
            } catch (Exception e) {
                // TODO: handle exception
            }
        }
    public static String readQRCode(String filePath, String charset, Map hintMap)
    throws FileNotFoundException, IOException, NotFoundException {
        BinaryBitmap binaryBitmap = new BinaryBitmap(new HybridBinarizer(
            new BufferedImageLuminanceSource(
                ImageIO.read(new FileInputStream(filePath)))));
        Result qrCodeResult = new MultiFormatReader().decode(binaryBitmap, hintMap);
        return qrCodeResult.getText();
    }
}