<!-- 二维码   --><dependency><groupId>com.google.zxing</groupId><artifactId>javase</artifactId><version>3.3.0</version></dependency>package com.hxkj.springboot.core.utils;import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.geom.RoundRectangle2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileInputStream;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.HashMap;
import java.util.Hashtable;import javax.imageio.ImageIO;import com.google.zxing.BarcodeFormat;
import com.google.zxing.Binarizer;
import com.google.zxing.BinaryBitmap;
import com.google.zxing.DecodeHintType;
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.client.j2se.BufferedImageLuminanceSource;
import com.google.zxing.client.j2se.MatrixToImageWriter;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.common.HybridBinarizer;public class QrCodeUtils {/*** @Title: encodeQrCode* @Description: zixing普通二维码生成* @param content*            二维码内容* @param prePath*            保存路径前缀* @param qrCodeName*            二维码文件保存名称* @return* @return String* @author huzhihui_c@qq.com* @date 2016年10月10日 上午10:55:54*/public static String encodeQrCode(String content, String prePath, String qrCodeName) {try {int width = 300; // 二维码图片宽度int height = 300; // 二维码图片高度String format = "png";// 二维码的图片格式Hashtable<EncodeHintType, String> hints = new Hashtable<EncodeHintType, String>();hints.put(EncodeHintType.CHARACTER_SET, "utf-8"); // 内容所使用字符集编码hints.put(EncodeHintType.MARGIN, "2");BitMatrix bitMatrix = new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, width, height, hints);// 生成二维码Path path = Paths.get(prePath, qrCodeName);MatrixToImageWriter.writeToPath(bitMatrix, format, path);System.out.println("success:-------------------生成二维码成功");} catch (Exception e) {System.out.println("error:-------------------生成二维码失败" + e.getMessage());return null;}return qrCodeName;}/*** @Title: decodeQrCode* @Description: zixing二维码解析* @param qrCodeUrl* @return* @return String* @author huzhihui_c@qq.com* @date 2016年10月10日 上午11:35:21*/public static String decodeQrCode(String qrCodeUrl) {String retStr = "";try {BufferedImage bufferedImage = ImageIO.read(new FileInputStream(qrCodeUrl));LuminanceSource source = new BufferedImageLuminanceSource(bufferedImage);Binarizer binarizer = new HybridBinarizer(source);BinaryBitmap bitmap = new BinaryBitmap(binarizer);HashMap<DecodeHintType, Object> hintTypeObjectHashMap = new HashMap<>();hintTypeObjectHashMap.put(DecodeHintType.CHARACTER_SET, "UTF-8");Result result = new MultiFormatReader().decode(bitmap, hintTypeObjectHashMap);retStr = result.getText();System.out.println("success:-------------------二维码解析成功");} catch (Exception e) {System.out.println("error:-------------------二维码解析失败" + e.getMessage());}return retStr;}/*** @Title: encodeLogoQrCode * @Description:     生成带logo的二维码* @param content* @param prePath* @param qrCodeName* @param logoPath* @return   * @return String    * @author huzhihui_c@qq.com* @date 2016年10月10日 下午1:23:22*/public static String encodeLogoQrCode(String content, String prePath, String qrCodeName, String logoPath) {try {// 基本二维码生成int width = 300; // 二维码图片宽度int height = 300; // 二维码图片高度String format = "png";// 二维码的图片格式Hashtable<EncodeHintType, String> hints = new Hashtable<EncodeHintType, String>();hints.put(EncodeHintType.CHARACTER_SET, "utf-8"); // 内容所使用字符集编码hints.put(EncodeHintType.MARGIN, "2");BitMatrix bitMatrix = new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, width, height, hints);BufferedImage bufferQrCodeImage = MatrixToImageWriter.toBufferedImage(bitMatrix);// 普通二维码的图片流BufferedImage bufferLogoImage = ImageIO.read(new File(logoPath));// logo文件Graphics2D g2 = bufferQrCodeImage.createGraphics();int matrixWidth = bufferQrCodeImage.getWidth();int matrixHeigh = bufferQrCodeImage.getHeight();g2.drawImage(bufferLogoImage, matrixWidth / 5 * 2, matrixHeigh / 5 * 2, matrixWidth / 5, matrixHeigh / 5,null);// logo绘制BasicStroke stroke = new BasicStroke(5, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);g2.setStroke(stroke);// 设置笔画对象// 指定弧度的圆角矩形RoundRectangle2D.Float round = new RoundRectangle2D.Float(matrixWidth / 5 * 2, matrixHeigh / 5 * 2,matrixWidth / 5, matrixHeigh / 5, 20, 20);g2.setColor(Color.white);g2.draw(round);// 绘制圆弧矩形// 设置logo 有一道灰色边框BasicStroke stroke2 = new BasicStroke(1, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);g2.setStroke(stroke2);// 设置笔画对象RoundRectangle2D.Float round2 = new RoundRectangle2D.Float(matrixWidth / 5 * 2 + 2, matrixHeigh / 5 * 2 + 2,matrixWidth / 5 - 4, matrixHeigh / 5 - 4, 20, 20);g2.setColor(new Color(128, 128, 128));g2.draw(round2);// 绘制圆弧矩形g2.dispose();bufferQrCodeImage.flush();ImageIO.write(bufferQrCodeImage, format, new File(prePath+qrCodeName));System.out.println("success:-------------------生成带logo二维码成功");} catch (Exception e) {e.printStackTrace();System.out.println("error:-------------------生成带logo二维码失败" + e.getMessage());}return "";}public static void main(String[] args) {encodeLogoQrCode("nihao a ","D:/","aaa.jpg","D:/logo.jpg");}
}