需要用到的Jar包：ZXing-core.jar和ZXing-javase.jar。
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- import java.io.File;
- import java.util.Hashtable;
-
- import com.google.zxing.BarcodeFormat;
- import com.google.zxing.EncodeHintType;
- import com.google.zxing.MultiFormatWriter;
- import com.google.zxing.client.j2se.MatrixToImageWriter;
- import com.google.zxing.common.BitMatrix;
-
- //编码
- public class QREncoder {
-
- public static void main(String[] args) throws Exception {
- String content = "hello world";
- String encoding = "utf-8";
- int width = 150;
- int height = 150;
- String format = "jpg";
- File imagePath = new File("d:/test.jpg");
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- com.google.zxing.Writer writer = new MultiFormatWriter();
- Hashtable<EncodeHintType, String> hints = new Hashtable<EncodeHintType, String>(2);
- hints.put(EncodeHintType.CHARACTER_SET, encoding);
- BitMatrix matrix = writer.encode(content, BarcodeFormat.QR_CODE, width, height, hints);
- MatrixToImageWriter.writeToFile(matrix, format, imagePath);
- }
-
- }
-
-
-
- import java.io.File;
- import java.util.Hashtable;
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- import javax.imageio.ImageIO;
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- import com.google.zxing.Binarizer;
- import com.google.zxing.BinaryBitmap;
- import com.google.zxing.DecodeHintType;
- import com.google.zxing.LuminanceSource;
- import com.google.zxing.MultiFormatReader;
- import com.google.zxing.Reader;
- import com.google.zxing.Result;
- import com.google.zxing.client.j2se.BufferedImageLuminanceSource;
- import com.google.zxing.common.GlobalHistogramBinarizer;
-
- //解码
- public class QRDecoder {
-
- public static void main(String[] args) throws Exception {
- File imagePath = new File("d:/test.jpg");
- String encoding = "utf-8";
-
- Reader reader = new MultiFormatReader();
- LuminanceSource ls = new BufferedImageLuminanceSource(ImageIO.read(imagePath));
- Binarizer b = new GlobalHistogramBinarizer(ls);
- Hashtable<DecodeHintType, String> hint1 = new Hashtable<DecodeHintType, String>(2);
- hint1.put(DecodeHintType.CHARACTER_SET, encoding);
- Result r = reader.decode(new BinaryBitmap(b), hint1);
- System.out.println(r.getText());
- }
-
- }
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