解析二维码

package www.ablanxue.com; import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import jp.sourceforge.qrcode.QRCodeDecoder;
import jp.sourceforge.qrcode.exception.DecodingFailedException;

public class QRCode {

    /**
     * 解析二维码（QRCode）
     * @param imgPath 图片路径
     * @return
     */
    public String decoderQRCode(String imgPath) {
        // QRCode 二维码图片的文件
        File imageFile = new File(imgPath);
        BufferedImage bufImg = null;
        String content = null;
        try {
            bufImg = ImageIO.read(imageFile);
            QRCodeDecoder decoder = new QRCodeDecoder();
            content = new String(decoder.decode(new QRCodeImageBean(bufImg)), "utf-8");
        } catch (IOException e) {
            System.out.println("Error: " + e.getMessage());
            e.printStackTrace();
        } catch (DecodingFailedException dfe) {
            System.out.println("Error: " + dfe.getMessage());
            dfe.printStackTrace();
        }
        return content;
    }  

    public static void main(String[] args) {
        String imgPath = "K:/aaa.png";
        QRCode handler = new QRCode();
        String qrCon = handler.decoderQRCode(imgPath);
        System.out.println("decoder success!!!");
        System.out.println("二维码内容为:" + qrCon);
    }  

}

QRCodeImageBean.java
package www.ablanxue.com; import java.awt.image.BufferedImage;
import jp.sourceforge.qrcode.data.QRCodeImage;

public class QRCodeImageBean implements QRCodeImage {

    BufferedImage bufImg;  

    public QRCodeImageBean(BufferedImage bufImg) {
        this.bufImg = bufImg;
    }  

    @Override
    public int getHeight() {
        return bufImg.getHeight();
    }  

    @Override
    public int getPixel(int x, int y) {
        return bufImg.getRGB(x, y);
    }  

    @Override
    public int getWidth() {
        return bufImg.getWidth();
    }
}