引入jar包
zxing-2.3.0.jar、IKAnalyzer2012_u6.jar
下载地址：https://yvioo.lanzous.com/b00nlbp6h
密码:5jge
ZxingLogoConfig.java
import java.awt.Color; public class ZxingLogoConfig { // 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 ZxingLogoConfig() { this(DEFAULT_BORDERCOLOR, DEFAULT_LOGOPART); } public ZxingLogoConfig(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; } }
ZXingCode .java
package com.util; import java.awt.BasicStroke; import java.awt.Color; import java.awt.Font; 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 org.apache.commons.lang.StringUtils; 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;/** * @Description: (二维码) * @author 。 */ public class ZXingCode { private static final int BLACK = 0xFF000000;//黑色 private static final int WHITE = 0xFFFFFFFF;//白色 private static class SingletonHolder{ private final static ZXingCode INSTANCE=new ZXingCode(); } private ZXingCode(){} public static ZXingCode getInstance(){ return SingletonHolder.INSTANCE; } /** * 给二维码图片添加Logo * * @param qrPic * @param logoPic */ public void addLogoQRCode(File qrPic, File logoPic, ZxingLogoConfig 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.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; /** * 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:/test/2.jpg")); } catch (Exception e) { e.printStackTrace(); } } public BufferedImage addLogoQRCode(BufferedImage image, File logoPic, ZxingLogoConfig logoConfig) { try { if (image==null || !logoPic.isFile()) { System.out.print("file not find !"); return image; } /** * 读取二维码图片，并构建绘图对象 */ 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; /** * 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(); return image; } catch (Exception e) { e.printStackTrace(); } return image; } public BufferedImage addLogoWordQRCode(BufferedImage image, String logoWord, Integer fontSize, ZxingLogoConfig logoConfig) { try { if (image==null || StringUtils.isBlank(logoWord)) { System.out.print("file not find !"); return image; } Graphics2D g = image.createGraphics(); int widthLogo = g.getFontMetrics().stringWidth(logoWord); int heightLogo= 10; int x = (image.getWidth() - widthLogo) / 2; int y = (image.getHeight() - heightLogo) / 2; // 开始绘制图片 Font font=new Font("黑体", Font.PLAIN, fontSize); g.setFont(font); g.setColor(Color.BLACK); g.drawString(logoWord, x, y); g.dispose(); image.flush(); return image; } catch (Exception e) { e.printStackTrace(); } return image; } /** * 二维码的解析 * * @param file */ public void parseQRCODEImage(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); } catch (Exception e) { e.printStackTrace(); } } /** * 将二维码生成为文件 * * @param bm * @param imageFormat * @param file */ public void decodeQRCODE2ImageFile(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, "png", 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 getQRCODEBufferedImage(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，分别设为黑（0xFF000000）白（0xFFFFFFFF）两色 for (int x = 0; x < w; x++) { for (int y = 0; y < h; y++) { image.setRGB(x, y, bm.get(x, y) ? BLACK : WHITE); } } } 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*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; } }
控制器方法请求代码
package com.test; import java.awt.image.BufferedImage; import javax.imageio.ImageIO; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.lang.StringUtils; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import com.google.zxing.BarcodeFormat; import com.util.ZXingCode; /** * 二维码Action */ @Controller public class DimensionCodeAct { /** * 生成二维码图片 * @param content url链接 * @param fontSize 文字大小 * @param size 图片大小 * @param request * @param response */ @RequestMapping("/o_create_dimensioncode") public void createCodeImg(String content, Integer fontSize,Integer size, HttpServletRequest request, HttpServletResponse response) { if(StringUtils.isNotBlank(content)){ if(size==null){ size=100; } if(fontSize==null){ fontSize=10; } response.setContentType("image/png"); try { ZXingCode zp = ZXingCode.getInstance(); BufferedImage bim = zp.getQRCODEBufferedImage(content, BarcodeFormat.QR_CODE, size, size, zp.getDecodeHintType()); ImageIO.write(bim, "png", response.getOutputStream());
//如果是只要生成到本地文件夹 用以下写法
//File file=new File("存放的绝对路径，例：D://xxx.jpg");
//ImageIO.write(bim, "png", file); } catch (Exception e) { //e.printStackTrace(); } } } }
页面调用
<img src="/o_create_dimensioncode.jspx?content=${url!}&size=90" style="width:150px;height:150px;"/>