How Java parses two-dimensional code

Package com.ust.map;
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.data.QRCodeImage;
Import jp.sourceforge.qrcode.exception.DecodingFailedException;

public class Qrcodedecoderhandler {

/** * decode QR code * @param imgpath * @return string */public string Decoderqrcode (String imgpath) {//qrcode QR code picture file Fil    E imagefile = new File (Imgpath);    BufferedImage bufimg = null;    String decodeddata = null;        try {bufimg = Imageio.read (ImageFile);        Qrcodedecoder decoder = new Qrcodedecoder ();    Decodeddata = new String (Decoder.decode (New J2seimage (bufimg)));        } catch (IOException e) {System.out.println ("Error:" + e.getmessage ());    E.printstacktrace ();        } catch (Decodingfailedexception DfE) {System.out.println ("Error:" + dfe.getmessage ());    Dfe.printstacktrace (); } return decodeddata;} /** * @param args the command line arguments */public static void main (string[] args) {Qrcodedecoderhandler handler =    New Qrcodedecoderhandler ();    String Imgpath = "e://ido//Two-dimensional code//yizhicheng.png";    String decodercontent = Handler.decoderqrcode (Imgpath);    System.out.println ("Parse the result as follows:");    System.out.println (decodercontent); SyStem.out.println ("========decoder success!!!");}    Class J2seimage implements Qrcodeimage {BufferedImage bufimg;    Public J2seimage (BufferedImage bufimg) {this.bufimg = bufimg;    } public int getwidth () {return bufimg.getwidth ();    } public int getheight () {return bufimg.getheight ();    } public int GetPixel (int x, int y) {return Bufimg.getrgb (x, y); }}

}

How Java parses two-dimensional code