之前写过一篇不带logo的二维码实现方式,采用QRCode和ZXing两种方式
这里介绍一下ZXing的带logo实现方式,具体实现参考一下代码,测试使用ZXingCodeUtil的main方法。
视频链接地址:http://www.tudou.com/programs/view/WSMfx1RL-ao/ ,视频地址中包含图片二维码流输出方式
1、LogoConfig logo背景配置类
2、ZXingConfig 二维码配置信息
3、BufferedImageLuminanceSource 二维码解析使用类
4、ZXingCodeUtil二维码生成
LogoConfig.java
package com.weixin.pay.orcode.logo; import java.awt.Color; /** * logo背景配置 * * @author X-rapido */ public class LogoConfig { public static final Color DEFAULT_BORDERCOLOR = Color.WHITE; // logo默认边框颜色 public static final int DEFAULT_BORDER = 2; // logo默认边框宽度 public static final int DEFAULT_LOGOPART = 5; // logo大小默认为照片的1/5 private final int border = DEFAULT_BORDER; // 默认边框宽度 private final Color borderColor; // 边框颜色 private final int logoPart; // 边框外围宽度 /** * 二维码无参构造函数 默认设置Logo图片底色白色宽度2 */ public LogoConfig() { this(DEFAULT_BORDERCOLOR, DEFAULT_LOGOPART); } /** * 二维码有参构造函数 * * @param borderColor 边框颜色 * @param logoPart 边框宽度 */ public LogoConfig(Color borderColor, int logoPart) { // 设置边框 this.borderColor = borderColor; // 设置边框宽度 this.logoPart = logoPart; } /** * 获取边框颜色 * * @return 获取边框颜色 */ public Color getBorderColor() { return borderColor; } /** * 获取边框 * * @return 获取边框 */ public int getBorder() { return border; } /** * 外围边宽 * * @return 外围边宽 */ public int getLogoPart() { return logoPart; } }
BufferedImageLuminanceSource.java
package com.weixin.pay.orcode.logo; import com.google.zxing.LuminanceSource; import java.awt.Graphics2D; import java.awt.geom.AffineTransform; import java.awt.image.BufferedImage; /** * 二维码解析使用类 * * @author X-rapido * */ public 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); } }
ZXingConfig.java
package com.weixin.pay.orcode.logo; import java.util.Map; import com.google.zxing.BarcodeFormat; import com.google.zxing.EncodeHintType; /** * 二维码配置信息 * * @author X-rapido * */ public class ZXingConfig { private boolean logoFlg = false; // 是否添加Log图片 private String content; // 二维码编码内容 private BarcodeFormat barcodeformat = BarcodeFormat.QR_CODE; //编码类型 private int width = 200; // 生成图片宽度 private int height = 200; // 生成图片高度 private Map<EncodeHintType, ?> hints; // 设置参数 private String logoPath; // Logo图片路径 private String putPath; // 图片输出路径 private LogoConfig LogoConfig; // logo图片参数 /** * 获取 是否添加Log图片 * * @return logoFlg 是否添加Log图片 */ public boolean isLogoFlg() { return logoFlg; } /** * 设置 是否添加Log图片 * * @param logoFlg 是否添加Log图片 */ public void setLogoFlg(boolean logoFlg) { this.logoFlg = logoFlg; } /** * 获取 二维码编码内容 * * @return content 二维码编码内容 */ public String getContent() { return content; } /** * 设置 二维码编码内容 * * @param content 二维码编码内容 */ public void setContent(String content) { this.content = content; } /** * 获取 编码类型 * * @return barcodeformat 编码类型 */ public BarcodeFormat getBarcodeformat() { return barcodeformat; } /** * 设置 编码类型 * * @param barcodeformat 编码类型 */ public void setBarcodeformat(BarcodeFormat barcodeformat) { this.barcodeformat = barcodeformat; } /** * 获取 生成图片宽度 * * @return width 生成图片宽度 */ public int getWidth() { return width; } /** * 设置 生成图片宽度 * * @param width 生成图片宽度 */ public void setWidth(int width) { this.width = width; } /** * 获取 生成图片高度 * * @return height 生成图片高度 */ public int getHeight() { return height; } /** * 设置 生成图片高度 * * @param height 生成图片高度 */ public void setHeight(int height) { this.height = height; } /** * 获取 设置参数 * * @return hints 设置参数 */ public Map<EncodeHintType, ?> getHints() { return hints; } /** * 设置 设置参数 * * @param hints 设置参数 */ public void setHints(Map<EncodeHintType, ?> hints) { this.hints = hints; } /** * 获取 Logo图片路径 * * @return logoPath Logo图片路径 */ public String getLogoPath() { return logoPath; } /** * 设置 Logo图片路径 * * @param logoPath Logo图片路径 */ public void setLogoPath(String logoPath) { this.logoPath = logoPath; } /** * 获取 图片输出路劲 * * @return putPath 图片输出路劲 */ public String getPutPath() { return putPath; } /** * 设置 图片输出路劲 * * @param putPath 图片输出路劲 */ public void setPutPath(String putPath) { this.putPath = putPath; } /** * 获取 logoConfig * * @return logoConfig logoConfig */ public LogoConfig getLogoConfig() { return LogoConfig; } /** * 设置 logoConfig * * @param logoConfig logoConfig */ public void setLogoConfig(LogoConfig logoConfig) { LogoConfig = logoConfig; } }
ZXingCodeUtil.java
package com.weixin.pay.orcode.logo; import java.awt.BasicStroke; import java.awt.Color; import java.awt.Graphics2D; import java.awt.image.BufferedImage; import java.io.File; import java.util.HashMap; import java.util.Map; import javax.imageio.ImageIO; 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.weixin.pay.orcode.ZXingConfig; /** * 二维码生成google zxing * * @author X-rapido * */ public class ZXingCodeUtil { /** * 二维码图片添加Logo * * @param bim 图片流 * @param logoPic Logo图片物理位置 * @param logoConfig Logo图片设置参数 * @throws Exception 异常上抛 */ private void addLogo_QRCode(BufferedImage bim, File logoPic, LogoConfig logoConfig) throws Exception { try { // 对象流传输 BufferedImage image = bim; 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.getWidth(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; // 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(); } catch (Exception e) { throw e; } } /** * 二维码的解析 * * @param image 图片文件流 * @return 解析后的Result结果集 * @throws Exception 错误异常上抛 */ @SuppressWarnings("unchecked") public Result parseQR_CODEImage(BufferedImage image) throws Exception { // 设置解析 Result result = null; try { MultiFormatReader formatReader = new MultiFormatReader(); LuminanceSource source = new BufferedImageLuminanceSource(image); Binarizer binarizer = new HybridBinarizer(source); BinaryBitmap binaryBitmap = new BinaryBitmap(binarizer); @SuppressWarnings("rawtypes") Map hints = new HashMap(); hints.put(EncodeHintType.CHARACTER_SET, "UTF-8"); result = formatReader.decode(binaryBitmap, hints); System.out.println("resultFormat = " + result.getBarcodeFormat()); System.out.println("resultText = " + result.getText()); } catch (Exception e) { throw e; } return result; } /** * 生成二维码bufferedImage图片 * @param zxingconfig 二维码配置信息 * @return 生成后的 BufferedImage * @throws Exception 异常上抛 */ public BufferedImage getQR_CODEBufferedImage(ZXingConfig zxingconfig) throws Exception { // Google配置文件 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(zxingconfig.getContent(), zxingconfig.getBarcodeformat(), zxingconfig.getWidth(), zxingconfig.getHeight(), zxingconfig.getHints()); 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,分别设为黑白两色 for (int x = 0; x < w; x++) { for (int y = 0; y < h; y++) { image.setRGB(x, y, bm.get(x, y) ? Color.BLACK.getRGB() : Color.WHITE.getRGB()); } } // 是否设置Logo图片 if (zxingconfig.isLogoFlg()) { this.addLogo_QRCode(image, new File(zxingconfig.getLogoPath()), zxingconfig.getLogoConfig()); } } catch (WriterException e) { throw e; } 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; } /** * 这个工具类 ZXingCodeUtil 是提供二维码图片生成的工具 首先使用的时候需要实例化 * ZXingCodeUtil 然后实例化参数 ZXingConfig 和 LogoConfig 通过下面的演示可以详细看参数是按照什么循序进行设置 最后调用 * ZXingCodeUtil 中方法 getQR_CODEBufferedImage来生成二维码 */ public static void main(String[] args) throws WriterException { String content = "http://www.baidu.com"; System.out.println("inputParam:" + content); try { // 生成二维码 File file = new File("D:/Michael_QRCode.png"); ZXingCodeUtil zp = new ZXingCodeUtil(); // 实例化二维码工具 ZXingConfig zxingconfig = new ZXingConfig(); // 实例化二维码配置参数 zxingconfig.setHints(zp.getDecodeHintType()); // 设置二维码的格式参数 zxingconfig.setContent(content);// 设置二维码生成内容 zxingconfig.setLogoPath("D:/logo.jpg"); // 设置Logo图片 zxingconfig.setLogoConfig(new LogoConfig()); // Logo图片参数设置 zxingconfig.setLogoFlg(true); // 设置生成Logo图片 BufferedImage bim = zp.getQR_CODEBufferedImage(zxingconfig);// 生成二维码 ImageIO.write(bim, "png", file); // 图片写出 Thread.sleep(500); // 缓冲 zp.parseQR_CODEImage(bim); // 解析调用 } catch (Exception e) { e.printStackTrace(); } } }
资源Demo实例,点击二维码自动切换验证码,下载链接:
http://download.csdn.net/detail/xiaokui_wingfly/8846895