zxing 二维码

来源：互联网发布：java工厂模式例子编辑：程序博客网时间：2024/04/30 21:35
//写二维码的代码：import java.io.File;import java.io.IOException;import java.util.Hashtable;import com.google.zxing.BarcodeFormat;import com.google.zxing.EncodeHintType;import com.google.zxing.MultiFormatWriter;import com.google.zxing.WriterException;import com.google.zxing.client.j2se.MatrixToImageWriter;import com.google.zxing.common.BitMatrix;public class QREncoder{public static void main(String[] args){String content = "酒至颜自解，声和心亦宣。";Hashtable<EncodeHintType, String> hints = new Hashtable<EncodeHintType, String>();hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");BitMatrix matrix = null;try{MultiFormatWriter writer = new MultiFormatWriter();matrix = writer.encode(content, BarcodeFormat.QR_CODE, 300, 300, hints);} catch (WriterException e){e.printStackTrace();}File file = new File("D:/qrimage.png");try{MatrixToImageWriter.writeToFile(matrix, "png", file);} catch (IOException e){e.printStackTrace();}}}//读二维码的代码：import java.awt.image.BufferedImage;import java.io.File;import java.io.IOException;import java.util.Hashtable;import javax.imageio.ImageIO;import com.google.zxing.BinaryBitmap;import com.google.zxing.DecodeHintType;import com.google.zxing.LuminanceSource;import com.google.zxing.MultiFormatReader;import com.google.zxing.NotFoundException;import com.google.zxing.Result;import com.google.zxing.client.j2se.BufferedImageLuminanceSource;import com.google.zxing.common.HybridBinarizer;public class QRDecoder{public static void main(String[] args){File file = new File("D:/qrimage.png");BufferedImage bufferedImage = null;try{bufferedImage = ImageIO.read(file);} catch (IOException e){e.printStackTrace();}LuminanceSource source = new BufferedImageLuminanceSource(bufferedImage);BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));Hashtable<DecodeHintType, String> hints = new Hashtable<DecodeHintType, String>();hints.put(DecodeHintType.CHARACTER_SET, "UTF-8");Result result = null;try{result = new MultiFormatReader().decode(bitmap, hints);} catch (NotFoundException e){e.printStackTrace();}System.out.println(result.toString());}}
0 0