使用ZXing 编码和解码

MyTestDecode

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.EncodeHintType;
import com.google.zxing.LuminanceSource;
import com.google.zxing.MultiFormatReader;
import com.google.zxing.Reader;
import com.google.zxing.ReaderException;
import com.google.zxing.Result;
import com.google.zxing.client.j2se.BufferedImageLuminanceSource;
import com.google.zxing.common.HybridBinarizer;

public class MyTestDecode {
/**
* @param args
* @throws ReaderException
* @throws InterruptedException
*/
public static void main(String[] args) throws ReaderException,
InterruptedException {
Reader reader = new MultiFormatReader();
String imgPath = "D:\\QRCodeTest\\TestQRCode1.png";
File file = new File(imgPath);

BufferedImage image;
try {
image = ImageIO.read(file);
if (image == null) {
System.out.println("Could not decode image");
}
LuminanceSource source = new BufferedImageLuminanceSource(image);
BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
Result result;
Hashtable hints= new Hashtable();
hints.put(DecodeHintType.CHARACTER_SET, "GBK");
result = new MultiFormatReader().decode(bitmap,hints);
String resultStr = result.getText();
System.out.println(resultStr);

} catch (IOException ioe) {
System.out.println(ioe.toString());
} catch (ReaderException re) {
System.out.println(re.toString());
}
}

}

MyTestEncode

import java.io.File;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.Hashtable;

import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatWriter_ED;
import com.google.zxing.WriterException;
import com.google.zxing.client.j2se.MatrixToImageWriter;
import com.google.zxing.common.ByteMatrix;

public class MyTestEncode {
public static void main(String[] args) throws Exception {
try {
String str = "CN:男;COP:公司;ZW:职务";// 二维码内容
String path = "D:\\QRCodeTest\\TestQRCode1.png";
Hashtable hints= new Hashtable();
hints.put(EncodeHintType.CHARACTER_SET, "GBK");
ByteMatrix byteMatrix;

byteMatrix = new MultiFormatWriter_ED().encode(str,
BarcodeFormat.QR_CODE, 200, 200,hints);

File file = new File(path);
MatrixToImageWriter.writeToFile(byteMatrix, "png", file);
} catch (IOException e) {
e.printStackTrace();
} catch (WriterException e1) {
e1.printStackTrace();
}
}

}