Zxing和QR CODE 生成与解析二维码实例（带logo篇）

上一篇介绍了普通的二位码的生成与解析，本篇来介绍两种工具类生成带Logo的二维码的实例

下载jar包地址：http://download.csdn.net/detail/gao36951/8161861

首先介绍Zxing生成带logo的二维码

工具类

package com.util;import com.google.zxing.LuminanceSource;import java.awt.Graphics2D;import java.awt.geom.AffineTransform;import java.awt.image.BufferedImage;public final class BufferedImageLuminanceSource extends LuminanceSource {  private final BufferedImage image;  private final int left;  private final int top;  public BufferedImageLuminanceSource(BufferedImage image) {    this(image, 0, 0, image.getWidth(), image.getHeight());  }  public BufferedImageLuminanceSource(BufferedImage image, int left, int top, int width, int height) {    super(width, height);    int sourceWidth = image.getWidth();    int sourceHeight = image.getHeight();    if (left + width > sourceWidth || top + height > sourceHeight) {      throw new IllegalArgumentException("Crop rectangle does not fit within image data.");    }    for (int y = top; y < top + height; y++) {      for (int x = left; x < left + width; x++) {        if ((image.getRGB(x, y) & 0xFF000000) == 0) {          image.setRGB(x, y, 0xFFFFFFFF); // = white        }      }    }    this.image = new BufferedImage(sourceWidth, sourceHeight, BufferedImage.TYPE_BYTE_GRAY);    this.image.getGraphics().drawImage(image, 0, 0, null);    this.left = left;    this.top = top;  }  @Override  public byte[] getRow(int y, byte[] row) {    if (y < 0 || y >= getHeight()) {      throw new IllegalArgumentException("Requested row is outside the image: " + y);    }    int width = getWidth();    if (row == null || row.length < width) {      row = new byte[width];    }    image.getRaster().getDataElements(left, top + y, width, 1, row);    return row;  }  @Override  public byte[] getMatrix() {    int width = getWidth();    int height = getHeight();    int area = width * height;    byte[] matrix = new byte[area];    image.getRaster().getDataElements(left, top, width, height, matrix);    return matrix;  }  @Override  public boolean isCropSupported() {    return true;  }  @Override  public LuminanceSource crop(int left, int top, int width, int height) {    return new BufferedImageLuminanceSource(image, this.left + left, this.top + top, width, height);  }  @Override  public boolean isRotateSupported() {    return true;  }  @Override  public LuminanceSource rotateCounterClockwise() {      int sourceWidth = image.getWidth();    int sourceHeight = image.getHeight();    AffineTransform transform = new AffineTransform(0.0, -1.0, 1.0, 0.0, 0.0, sourceWidth);    BufferedImage rotatedImage = new BufferedImage(sourceHeight, sourceWidth, BufferedImage.TYPE_BYTE_GRAY);    Graphics2D g = rotatedImage.createGraphics();    g.drawImage(image, transform, null);    g.dispose();    int width = getWidth();    return new BufferedImageLuminanceSource(rotatedImage, top, sourceWidth - (left + width), getHeight(), width);  }}

生成二维码类

package com.zxing.create;import java.awt.BasicStroke;import java.awt.Color;import java.awt.Component;import java.awt.Graphics2D;import java.awt.MediaTracker;import java.awt.image.BufferedImage;import java.io.File;import java.io.OutputStream;import java.util.Date;import java.util.HashMap;import java.util.Map;import javax.imageio.ImageIO;import com.google.zxing.BarcodeFormat;import com.google.zxing.Binarizer;import com.google.zxing.BinaryBitmap;import com.google.zxing.EncodeHintType;import com.google.zxing.LuminanceSource;import com.google.zxing.MultiFormatReader;import com.google.zxing.MultiFormatWriter;import com.google.zxing.Result;import com.google.zxing.WriterException;import com.google.zxing.common.BitMatrix;import com.google.zxing.common.HybridBinarizer;import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;import com.util.BufferedImageLuminanceSource;/**   * @Description: (二维码)      * @author：yqgao   * @date：2014-11-7 下午05:27:13      */public class ZXingCode{    public static void main(String[] args) throws WriterException    {        String content = "http://blog.csdn.net/gao36951";        String filePath = "D:/二维码生成/weixin.jpg";        try        {            File file = new File(filePath);             ZXingCode zp = new ZXingCode();             BufferedImage bim = zp.getQR_CODEBufferedImage(content, BarcodeFormat.QR_CODE, 300, 300, zp.getDecodeHintType());             ImageIO.write(bim, "jpeg", file);             zp.addLogo_QRCode(file, new File("D:/logo/logo3.jpg"), new LogoConfig());             //            Thread.sleep(5000);//            zp.parseQR_CODEImage(new File("D:/二维码生成/TDC-test.png"));        }        catch (Exception e)        {            e.printStackTrace();        }    }     /**     * 给二维码图片添加Logo     *     * @param qrPic     * @param logoPic     */    public void addLogo_QRCode(File qrPic, File logoPic, LogoConfig logoConfig)    {        try        {            if (!qrPic.isFile() || !logoPic.isFile())            {                System.out.print("file not find !");                System.exit(0);            }             /**             * 读取二维码图片，并构建绘图对象             */            BufferedImage image = ImageIO.read(qrPic);            Graphics2D g = image.createGraphics();             /**             * 读取Logo图片             */            BufferedImage logo = ImageIO.read(logoPic);            /**             * 设置logo的大小,本人设置为二维码图片的20%,因为过大会盖掉二维码             */            int widthLogo = logo.getWidth(null)>image.getWidth()*2/10?(image.getWidth()*2/10):logo.getWidth(null),            heightLogo = logo.getHeight(null)>image.getHeight()*2/10?(image.getHeight()*2/10):logo.getHeight(null);                         // 计算图片放置位置       /**        * logo放在中心        */            /* int x = (image.getWidth() - widthLogo) / 2;               int y = (image.getHeight() - heightLogo) / 2;*/        /**        * logo放在右下角        */       int x = (image.getWidth() - widthLogo);            int y = (image.getHeight() - heightLogo);            //开始绘制图片            g.drawImage(logo, x, y, widthLogo, heightLogo, null);            g.drawRoundRect(x, y, widthLogo, heightLogo, 15, 15);            g.setStroke(new BasicStroke(logoConfig.getBorder()));            g.setColor(logoConfig.getBorderColor());            g.drawRect(x, y, widthLogo, heightLogo);                         g.dispose();            logo.flush();            image.flush();                         ImageIO.write(image, "png", new File("D:/二维码生成/TDC-"/*+new Date().getTime()*/+"test.png"));        }        catch (Exception e)        {            e.printStackTrace();        }    }     /**     * 二维码的解析     *     * @param file     */    public void parseQR_CODEImage(File file)    {        try        {            MultiFormatReader formatReader = new MultiFormatReader();             // File file = new File(filePath);            if (!file.exists())            {                return;            }             BufferedImage image = ImageIO.read(file);             LuminanceSource source = new BufferedImageLuminanceSource(image);            Binarizer binarizer = new HybridBinarizer(source);            BinaryBitmap binaryBitmap = new BinaryBitmap(binarizer);             Map hints = new HashMap();            hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");             Result result = formatReader.decode(binaryBitmap, hints);             System.out.println("result = " + result.toString());            System.out.println("resultFormat = " + result.getBarcodeFormat());            System.out.println("resultText = " + result.getText());        }        catch (Exception e)        {            e.printStackTrace();        }    }     /**     * 将二维码生成为文件     *     * @param bm     * @param imageFormat     * @param file     */    public void decodeQR_CODE2ImageFile(BitMatrix bm, String imageFormat, File file)    {        try        {            if (null == file || file.getName().trim().isEmpty())            {                throw new IllegalArgumentException("文件异常，或扩展名有问题！");            }             BufferedImage bi = fileToBufferedImage(bm);            ImageIO.write(bi, "apng", file);        }        catch (Exception e)        {            e.printStackTrace();        }    }      /**     * 构建初始化二维码     *     * @param bm     * @return     */    public BufferedImage fileToBufferedImage(BitMatrix bm)    {        BufferedImage image = null;        try        {            int w = bm.getWidth(), h = bm.getHeight();            image = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);             for (int x = 0; x < w; x++)            {                for (int y = 0; y < h; y++)                {                    image.setRGB(x, y, bm.get(x, y) ? 0xFF000000 : 0xFFCCDDEE);                }            }         }        catch (Exception e)        {            e.printStackTrace();        }        return image;    }     /**     * 生成二维码bufferedImage图片     *     * @param content     *            编码内容     * @param barcodeFormat     *            编码类型     * @param width     *            图片宽度     * @param height     *            图片高度     * @param hints     *            设置参数     * @return     */    public BufferedImage getQR_CODEBufferedImage(String content, BarcodeFormat barcodeFormat, int width, int height, Map<EncodeHintType, ?> hints)    {        MultiFormatWriter multiFormatWriter = null;        BitMatrix bm = null;        BufferedImage image = null;        try        {            multiFormatWriter = new MultiFormatWriter();             // 参数顺序分别为：编码内容，编码类型，生成图片宽度，生成图片高度，设置参数            bm = multiFormatWriter.encode(content, barcodeFormat, width, height, hints);             int w = bm.getWidth();            int h = bm.getHeight();            image = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);             // 开始利用二维码数据创建Bitmap图片，分别设为白（0xFFFFFFFF）黑（0xFF000000）两色            for (int x = 0; x < w; x++)            {                for (int y = 0; y < h; y++)                {                    image.setRGB(x, y, bm.get(x, y) ? 0xFF000000 : 0xFFCCDDEE);                }            }        }        catch (WriterException e)        {            e.printStackTrace();        }        return image;    }     /**     * 设置二维码的格式参数     *     * @return     */    public Map<EncodeHintType, Object> getDecodeHintType()    {        // 用于设置QR二维码参数        Map<EncodeHintType, Object> hints = new HashMap<EncodeHintType, Object>();        // 设置QR二维码的纠错级别（H为最高级别）具体级别信息        hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);        // 设置编码方式        hints.put(EncodeHintType.CHARACTER_SET, "utf-8");        hints.put(EncodeHintType.MARGIN, 0);        hints.put(EncodeHintType.MAX_SIZE, 350);        hints.put(EncodeHintType.MIN_SIZE, 100);         return hints;    }} class LogoConfig{    // logo默认边框颜色    public static final Color DEFAULT_BORDERCOLOR = Color.WHITE;    // logo默认边框宽度    public static final int DEFAULT_BORDER = 2;    // logo大小默认为照片的1/5    public static final int DEFAULT_LOGOPART = 5;     private final int border = DEFAULT_BORDER;    private final Color borderColor;    private final int logoPart;     /**     * Creates a default config with on color {@link #BLACK} and off color     * {@link #WHITE}, generating normal black-on-white barcodes.     */    public LogoConfig()    {        this(DEFAULT_BORDERCOLOR, DEFAULT_LOGOPART);    }     public LogoConfig(Color borderColor, int logoPart)    {        this.borderColor = borderColor;        this.logoPart = logoPart;    }     public Color getBorderColor()    {        return borderColor;    }     public int getBorder()    {        return border;    }     public int getLogoPart()    {        return logoPart;    }}

生成的带logo的二维码如下图

下面介绍QR CODE 生成带Logo的二维码的实例

package com.qrcode.create;import java.awt.Color;import java.awt.Graphics2D;import java.awt.Image;import java.awt.image.BufferedImage;import java.io.File;import javax.imageio.ImageIO;import com.swetake.util.Qrcode;/**  * @作者  Relieved * @创建日期   2014年11月8日 * @描述  （带logo二维码）  * @版本 V 1.0 */public class Logo_Two_Code {/**      * 生成二维码(QRCode)图片      * @param content 二维码图片的内容     * @param imgPath 生成二维码图片完整的路径     * @param ccbpath  二维码图片中间的logo路径     */      public static int createQRCode(String content, String imgPath,String ccbPath,int version) {          try {          Qrcode qrcodeHandler = new Qrcode();              //设置二维码排错率，可选L(7%)、M(15%)、Q(25%)、H(30%)，排错率越高可存储的信息越少，但对二维码清晰度的要求越小              qrcodeHandler.setQrcodeErrorCorrect('M');              //N代表数字,A代表字符a-Z,B代表其他字符            qrcodeHandler.setQrcodeEncodeMode('B');             // 设置设置二维码版本，取值范围1-40，值越大尺寸越大，可存储的信息越大              qrcodeHandler.setQrcodeVersion(version);             // 图片尺寸              int imgSize =67 + 12 * (version - 1) ;              byte[] contentBytes = content.getBytes("gb2312");              BufferedImage image = new BufferedImage(imgSize, imgSize, BufferedImage.TYPE_INT_RGB);              Graphics2D gs = image.createGraphics();                gs.setBackground(Color.WHITE);              gs.clearRect(0, 0, imgSize, imgSize);                // 设定图像颜色 > BLACK              gs.setColor(Color.BLUE);                // 设置偏移量 不设置可能导致解析出错              int pixoff = 2;              // 输出内容 > 二维码              if (contentBytes.length > 0 && contentBytes.length < 130) {                boolean[][] codeOut = qrcodeHandler.calQrcode(contentBytes);                for (int i = 0; i < codeOut.length; i++) {                    for (int j = 0; j < codeOut.length; j++) {                        if (codeOut[j][i]) {                            gs.fillRect(j * 3 + pixoff, i * 3 + pixoff, 3, 3);                        }                    }                }            } else {                  System.err.println("QRCode content bytes length = "                          + contentBytes.length + " not in [ 0,125]. ");                  return -1;            }              Image logo = ImageIO.read(new File(ccbPath));//实例化一个Image对象。            int widthLogo = logo.getWidth(null)>image.getWidth()*2/10?(image.getWidth()*2/10):logo.getWidth(null),            heightLogo = logo.getHeight(null)>image.getHeight()*2/10?(image.getHeight()*2/10):logo.getWidth(null);                   /**          * logo放在中心          */            int x = (image.getWidth() - widthLogo) / 2;            int y = (image.getHeight() - heightLogo) / 2;            gs.drawImage(logo, x, y, widthLogo, heightLogo, null);            gs.dispose();              image.flush();                // 生成二维码QRCode图片              File imgFile = new File(imgPath);              ImageIO.write(image, "png", imgFile);            } catch (Exception e)         {              e.printStackTrace();              return -100;        }                  return 0;    }      public static void main(String[] args) {    String imgPath = "D:/二维码生成/logo_QRCode.png";     String logoPath = "D:/logo/logo3.jpg";    String encoderContent = "http://blog.csdn.net/gao36951";    Logo_Two_Code logo_Two_Code = new Logo_Two_Code();    logo_Two_Code.createQRCode(encoderContent, imgPath, logoPath,8);}}

生成带Logo的二维码如下图：