java zxing生成二维码

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<EncodeHintType, Object> hints = new HashMap<EncodeHintType, Object>();

            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<EncodeHintType, Object> hints = new HashMap<EncodeHintType, Object>();

            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