package zxing.test;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;import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;import java.io.ByteArrayOutputStream;import java.io.IOException;import java.io.OutputStream;import java.util.HashMap;import java.util.Map;import java.util.logging.Level;import java.util.logging.Logger;import org.apache.commons.codec.binary.Base64;/** * @作者 yan * @创建日期  * @版本 V1.0 * @描述  */public class QrCodeUtil {        /**     * 生成二维码，返回二维码Base64编码     * @param content     * @param size     * @param imgFormt     * @return      */    public static String createQrCodeBase64(String content, int size, String imgFormt){        ByteArrayOutputStream baos = new ByteArrayOutputStream();                 try {            Map
     
       hints = new HashMap
      
       ();            hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L);            hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");            BitMatrix bitMatrix = new MultiFormatWriter().encode(content,BarcodeFormat.QR_CODE, size, size, hints);            MatrixToImageWriter.writeToStream(bitMatrix, imgFormt, baos);                    } catch (WriterException ex) {            Logger.getLogger(QrCodeUtil.class.getName()).log(Level.SEVERE, null, ex);        } catch (IOException ex) {            Logger.getLogger(QrCodeUtil.class.getName()).log(Level.SEVERE, null, ex);        }                byte result [] = baos.toByteArray();                return Base64.encodeBase64String(result);    }    /**     * 生成二维码，保存到output     * @param output     * @param content     * @param size     * @param imgFormt     * @return      */    public static boolean createQrCode(OutputStream output, String content, int size, String imgFormt){                try {            Map
       
         hints = new HashMap
        
         ();            hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L);            hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");            BitMatrix bitMatrix = new MultiFormatWriter().encode(content,BarcodeFormat.QR_CODE, size, size, hints);            MatrixToImageWriter.writeToStream(bitMatrix, imgFormt, output);                        return true;        } catch (WriterException ex) {            Logger.getLogger(QrCodeUtil.class.getName()).log(Level.SEVERE, null, ex);        } catch (IOException ex) {            Logger.getLogger(QrCodeUtil.class.getName()).log(Level.SEVERE, null, ex);        }                return false;    }}
        
       
      
     

jar:

zxing-core-3.2.0.jar

zxing-javase-3.2.0.jar