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26
studio/common/common-qrcode/pom.xml
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26
studio/common/common-qrcode/pom.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<parent>
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<artifactId>common</artifactId>
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<groupId>com.platform</groupId>
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<version>0.4.x</version>
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</parent>
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<modelVersion>4.0.0</modelVersion>
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<version>0.4.x</version>
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<artifactId>common-qrcode</artifactId>
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<dependencies>
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<dependency>
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<groupId>com.google.zxing</groupId>
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<artifactId>core</artifactId>
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<version>${zxing.version}</version>
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</dependency>
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<dependency>
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<groupId>com.google.zxing</groupId>
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<artifactId>javase</artifactId>
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<version>${zxing.version}</version>
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</dependency>
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</dependencies>
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</project>
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package cn.datax.common.qrcode;
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import java.awt.*;
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import java.awt.geom.RoundRectangle2D;
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import java.awt.image.BufferedImage;
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import java.io.*;
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import java.util.HashMap;
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import java.util.Map;
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import javax.imageio.ImageIO;
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import com.google.zxing.BarcodeFormat;
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import com.google.zxing.BinaryBitmap;
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import com.google.zxing.DecodeHintType;
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import com.google.zxing.EncodeHintType;
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import com.google.zxing.MultiFormatReader;
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import com.google.zxing.MultiFormatWriter;
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import com.google.zxing.NotFoundException;
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import com.google.zxing.Result;
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import com.google.zxing.WriterException;
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import com.google.zxing.client.j2se.BufferedImageLuminanceSource;
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import com.google.zxing.client.j2se.MatrixToImageConfig;
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import com.google.zxing.client.j2se.MatrixToImageWriter;
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import com.google.zxing.common.BitMatrix;
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import com.google.zxing.common.HybridBinarizer;
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import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
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import lombok.extern.slf4j.Slf4j;
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/**
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* 二维码 工具类
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*/
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@Slf4j
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public class QrCodeUtil {
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/**
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* 生成带图片的二维码(到destImagePath指向的File)
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*
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* @param content 二维码的内容
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* @param width 二维码的宽度(px)
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* @param height 二维码的高度(px)
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* @param embeddedImgPath 被镶嵌的图片的地址(null表示不带logo图片)
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* @param destImagePath 生成二维码图片的地址
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*
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* @return 生成的二维码文件path
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* @throws IOException IOException
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* @throws WriterException WriterException
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*/
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public static String QREncode(String content, int width, int height, String embeddedImgPath, String destImagePath) throws IOException, WriterException {
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File dest = getFile(destImagePath);
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// 图像类型
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String format = "jpg";
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Map<EncodeHintType, Object> hints = new HashMap<>(4);
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//设置UTF-8， 防止中文乱码
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hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
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//设置二维码四周白色区域的大小
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hints.put(EncodeHintType.MARGIN, 1);
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//设置二维码的容错性
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hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
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//画二维码，记得调用multiFormatWriter.encode()时最后要带上hints参数，不然上面设置无效
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BitMatrix bitMatrix = new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, width, height, hints);
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//开始画二维码
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MatrixToImageWriter.writeToPath(bitMatrix, format, dest.toPath());
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if (null != embeddedImgPath){
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MatrixToImageConfig matrixToImageConfig = new MatrixToImageConfig(0xFF000001, 0xFFFFFFFF);
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BufferedImage bufferedImage = LogoMatrix(MatrixToImageWriter.toBufferedImage(bitMatrix, matrixToImageConfig), embeddedImgPath);
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//输出带logo图片
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ImageIO.write(bufferedImage, format, dest);
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}
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log.info("generate Qr code file {}", destImagePath);
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return destImagePath;
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}
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/**
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* 生成带图片的二维码(到outputStream流)
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*
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* @param content 二维码的内容
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* @param width 二维码的宽度(px)
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* @param height 二维码的高度(px)
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* @param embeddedImgPath 被镶嵌的图片的地址(null表示不带logo图片)
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* @param outputStream 生成二维码图片的地址
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*
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* @return 生成的二维码文件path
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* @throws IOException IOException
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* @throws WriterException WriterException
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*/
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public static void QREncode(String content, int width, int height, String embeddedImgPath, OutputStream outputStream) throws IOException, WriterException {
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// 图像类型
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String format = "jpg";
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Map<EncodeHintType, Object> hints = new HashMap<>(4);
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//设置UTF-8， 防止中文乱码
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hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
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//设置二维码四周白色区域的大小
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hints.put(EncodeHintType.MARGIN, 1);
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//设置二维码的容错性
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hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
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//画二维码，记得调用multiFormatWriter.encode()时最后要带上hints参数，不然上面设置无效
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BitMatrix bitMatrix = new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, width, height, hints);
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//开始画二维码
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MatrixToImageConfig matrixToImageConfig = new MatrixToImageConfig(0xFF000001, 0xFFFFFFFF);
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BufferedImage bufferedImage = MatrixToImageWriter.toBufferedImage(bitMatrix, matrixToImageConfig);
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if (null != embeddedImgPath){
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bufferedImage = LogoMatrix(bufferedImage, embeddedImgPath);
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}
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//输出带logo图片
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boolean result = ImageIO.write(bufferedImage, format, outputStream);
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log.info("generate Qr code file to OutputStream {}", result ? "success" : "fail");
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}
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/**
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* 识别二维码内容信息
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*
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* @param file 二维码图片文件
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*
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* @return 二维码内容
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* @throws NotFoundException NotFoundException
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* @throws IOException IOException
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*/
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public static String QRReader(File file) throws NotFoundException, IOException {
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BufferedImage bufferedImage;
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bufferedImage = ImageIO.read(file);
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if (bufferedImage == null) {
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return null;
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}
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String data = decodeQrCode(bufferedImage);
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bufferedImage.flush();
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log.info("Qr code from [{}] data is -> {}", file.getAbsolutePath(), data);
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return data;
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}
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/**
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* 识别二维码内容信息
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*
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* @param is 二维码图片文件流
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*
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* @return 二维码内容
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* @throws NotFoundException NotFoundException
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* @throws IOException IOException
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*/
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public static String QRReader(InputStream is) throws NotFoundException, IOException {
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BufferedImage bufferedImage;
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bufferedImage = ImageIO.read(is);
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if (bufferedImage == null) {
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return null;
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}
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String data = decodeQrCode(bufferedImage);
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bufferedImage.flush();
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log.info("Qr code from InputStream data is -> {}", data);
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return data;
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}
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// ---------------------------------------------------以下为辅助方法、辅助类-----------------------------------------
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/**
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* 获取文件(顺带创建文件夹，如果需要的话)
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*
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* @param filePath 文件path
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* @return 文件对象
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*/
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private static File getFile(String filePath) {
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File file = new File(filePath);
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if (!file.getParentFile().exists()) {
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boolean result = file.getParentFile().mkdirs();
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log.info("create directory {} {}", file.getParent(), result);
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}
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return file;
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}
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/**
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* 二维码添加logo
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*
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* @param matrixImage 源二维码图片
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* @param embeddedImgPath logo图片地址
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* @return 返回带有logo的二维码图片
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*/
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public static BufferedImage LogoMatrix(BufferedImage matrixImage, String embeddedImgPath) throws IOException{
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/**
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* 读取二维码图片，并构建绘图对象
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*/
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Graphics2D g2 = matrixImage.createGraphics();
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int matrixWidth = matrixImage.getWidth();
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int matrixHeigh = matrixImage.getHeight();
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/**
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* 读取Logo图片
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*/
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File logoFile = getFile(embeddedImgPath);
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BufferedImage logo = ImageIO.read(logoFile);
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// 开始绘制图片
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g2.drawImage(logo, matrixWidth/5*2, matrixHeigh/5*2, matrixWidth/5, matrixHeigh/5, null);
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BasicStroke stroke = new BasicStroke(5, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);
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// 设置笔画对象
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g2.setStroke(stroke);
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// 指定弧度的圆角矩形
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RoundRectangle2D.Float round = new RoundRectangle2D.Float(matrixWidth/5*2, matrixHeigh/5*2, matrixWidth/5, matrixHeigh/5, 20, 20);
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g2.setColor(Color.white);
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// 绘制圆弧矩形
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g2.draw(round);
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// 设置logo 有一道灰色边框
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BasicStroke stroke2 = new BasicStroke(1, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);
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// 设置笔画对象
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g2.setStroke(stroke2);
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RoundRectangle2D.Float round2 = new RoundRectangle2D.Float(matrixWidth/5*2+2, matrixHeigh/5*2+2, matrixWidth/5-4, matrixHeigh/5-4, 20, 20);
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g2.setColor(new Color(128, 128, 128));
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// 绘制圆弧矩形
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g2.draw(round2);
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g2.dispose();
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matrixImage.flush();
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return matrixImage;
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}
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/**
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* 识别二维码内容信息
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*二维码图片信息BufferedImage
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* @param image
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*
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* @return 二维码内容
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* @throws NotFoundException NotFoundException
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*/
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private static String decodeQrCode(BufferedImage image) throws NotFoundException {
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BufferedImageLuminanceSource source = new BufferedImageLuminanceSource(image);
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BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
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HashMap<DecodeHintType, Object> hints = new HashMap<>(4);
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hints.put(DecodeHintType.CHARACTER_SET, "UTF-8");
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Result result = new MultiFormatReader().decode(bitmap, hints);
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return result.getText();
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}
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public static void main(String[] args) throws IOException, WriterException, NotFoundException {
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// 生成二维码
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// QrCodeUtil.QREncode("java开发", 500, 500, null, "F://qrcode2//二维码.jpg");
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// // 生成带图片的二维码
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// QrCodeUtil.QREncode("java开发", 500, 500, "F://qrcode2//1.jpg", "F://qrcode2//带图片的二维码.jpg");
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// // 识别二维码
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// QrCodeUtil.QRReader(new File("F://qrcode2//二维码.jpg"));
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// QrCodeUtil.decodeQrCode(new FileInputStream("F://qrcode//带文字带图片的二维码.jpg"));
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}
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}
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