├── .editorconfig ├── .gitignore ├── .travis.yml ├── LICENSE ├── README.md ├── pom.xml └── src ├── main └── java │ └── com │ └── github │ └── binarywang │ └── utils │ └── qrcode │ ├── BufferedImageLuminanceSource.java │ ├── MatrixToImageWriter.java │ ├── MatrixToLogoImageConfig.java │ └── QrcodeUtils.java └── test ├── java └── com │ └── github │ └── binarywang │ └── utils │ └── qrcode │ └── QrcodeUtilsTest.java └── resources └── logo.png /.editorconfig: -------------------------------------------------------------------------------- 1 | # EditorConfig: http://editorconfig.org/ 2 | 3 | root = true 4 | 5 | [*] 6 | indent_style = space 7 | indent_size = 2 8 | end_of_line = lf 9 | charset = utf-8 10 | trim_trailing_whitespace = true 11 | insert_final_newline = true 12 | 13 | [*.md] 14 | trim_trailing_whitespace = false 15 | 16 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | *.class 2 | 3 | # Mobile Tools for Java (J2ME) 4 | .mtj.tmp/ 5 | 6 | # Package Files # 7 | *.jar 8 | *.war 9 | *.ear 10 | 11 | # eclipse 12 | .settings/ 13 | .classpath 14 | .project 15 | .dbeaver/ 16 | 17 | # virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml 18 | hs_err_pid* 19 | /.idea/ 20 | *.iml 21 | /target/ 22 | pom.xml.versionsBackup 23 | -------------------------------------------------------------------------------- /.travis.yml: -------------------------------------------------------------------------------- 1 | language: java 2 | jdk: 3 | - openjdk8 4 | 5 | script: "mvn clean package -Dmaven.test.skip=true" 6 | 7 | branches: 8 | only: 9 | - main 10 | 11 | notifications: 12 | email: 13 | - a@binarywang.com 14 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright {yyyy} {name of copyright owner} 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # qrcode-utils 2 | 二维码生成工具 3 | --------------------------------- 4 | [![Maven Central](https://maven-badges.herokuapp.com/maven-central/com.github.binarywang/qrcode-utils/badge.svg)](https://maven-badges.herokuapp.com/maven-central/com.github.binarywang/qrcode-utils) 5 | [![Build Status](https://app.travis-ci.com/binarywang/qrcode-utils.svg?branch=main)](https://app.travis-ci.com/github/binarywang/qrcode-utils) 6 | 7 | #### Maven： 8 | 9 | 10 | 11 | com.github.binarywang 12 | qrcode-utils 13 | 1.3 14 | 15 | -------------------------------------------------------------------------------- /pom.xml: -------------------------------------------------------------------------------- 1 | 3 | 4.0.0 4 | com.github.binarywang 5 | qrcode-utils 6 | jar 7 | 1.3 8 | qrcode-utils 9 | https://github.com/binarywang/qrcode-utils 10 | qrcode utils 11 | 12 | 13 | The Apache License, Version 2.0 14 | http://www.apache.org/licenses/LICENSE-2.0.txt 15 | 16 | 17 | 18 | 19 | scm:git:https://github.com/binarywang/qrcode-utils.git 20 | scm:git:git@github.com:binarywang/qrcode-utils.git 21 | https://github.com/binarywang/qrcode-utils 22 | 23 | 24 | 25 | 26 | Binary Wang 27 | binarywang@gmail.com 28 | https://github.com/binarywang 29 | 30 | 31 | 32 | 33 | 1.7 34 | 1.7 35 | 36 | UTF-8 37 | 38 | 39 | 40 | org.testng 41 | testng 42 | 6.9.10 43 | test 44 | 45 | 46 | 47 | com.google.zxing 48 | core 49 | 3.5.0 50 | 51 | 52 | commons-io 53 | commons-io 54 | 2.14.0 55 | 56 | 57 | com.google.guava 58 | guava 59 | 33.2.0-jre 60 | 61 | 62 | org.slf4j 63 | slf4j-api 64 | 1.7.22 65 | 66 | 67 | org.slf4j 68 | slf4j-log4j12 69 | 1.7.36 70 | test 71 | 72 | 73 | org.projectlombok 74 | lombok 75 | 1.18.24 76 | provided 77 | 78 | 79 | 80 | 81 | 82 | ossrh 83 | https://oss.sonatype.org/content/repositories/snapshots 84 | 85 | 86 | ossrh 87 | https://oss.sonatype.org/service/local/staging/deploy/maven2/ 88 | 89 | 90 | 91 | 92 | 93 | doclint-java8-disable 94 | 95 | [1.8,) 96 | 97 | 98 | -Xdoclint:none 99 | 100 | 101 | 102 | 103 | release 104 | 105 | 106 | 107 | org.apache.maven.plugins 108 | maven-source-plugin 109 | 2.2.1 110 | 111 | 112 | attach-sources 113 | 114 | jar-no-fork 115 | 116 | 117 | 118 | 119 | 120 | org.apache.maven.plugins 121 | maven-javadoc-plugin 122 | 2.9.1 123 | 124 | 125 | attach-javadocs 126 | 127 | jar 128 | 129 | 130 | 131 | 132 | ${javadoc.opts} 133 | UTF-8 134 | zh_CN 135 | 136 | 137 | 138 | org.apache.maven.plugins 139 | maven-gpg-plugin 140 | 1.5 141 | 142 | 143 | sign-artifacts 144 | verify 145 | 146 | sign 147 | 148 | 149 | 150 | 151 | 152 | 153 | 154 | 155 | 156 | 157 | 158 | 159 | 160 | org.apache.maven.plugins 161 | maven-surefire-plugin 162 | 2.17 163 | 164 | 165 | 166 | 167 | 168 | 169 | org.sonatype.plugins 170 | nexus-staging-maven-plugin 171 | 1.6.3 172 | true 173 | 174 | ossrh 175 | https://oss.sonatype.org/ 176 | true 177 | 178 | 179 | 180 | org.apache.maven.plugins 181 | maven-release-plugin 182 | 2.5.1 183 | 184 | true 185 | false 186 | release 187 | deploy 188 | 189 | 190 | 191 | org.apache.maven.plugins 192 | maven-compiler-plugin 193 | 3.6.0 194 | 195 | UTF-8 196 | 197 | 198 | 199 | 200 | 201 | -------------------------------------------------------------------------------- /src/main/java/com/github/binarywang/utils/qrcode/BufferedImageLuminanceSource.java: -------------------------------------------------------------------------------- 1 | package com.github.binarywang.utils.qrcode; 2 | 3 | import com.google.zxing.LuminanceSource; 4 | 5 | import java.awt.*; 6 | import java.awt.geom.AffineTransform; 7 | import java.awt.image.BufferedImage; 8 | 9 | /** 10 | * 
 11 |  * Created by Binary Wang on 2017-01-05.
 12 |  * @author binarywang(Binary Wang)
 13 |  *
14 | */ 15 | public final class BufferedImageLuminanceSource extends LuminanceSource { 16 | 17 | private final BufferedImage image; 18 | private final int left; 19 | private final int top; 20 | 21 | public BufferedImageLuminanceSource(BufferedImage image) { 22 | this(image, 0, 0, image.getWidth(), image.getHeight()); 23 | } 24 | 25 | public BufferedImageLuminanceSource(BufferedImage image, int left, int top, 26 | int width, int height) { 27 | super(width, height); 28 | 29 | int sourceWidth = image.getWidth(); 30 | int sourceHeight = image.getHeight(); 31 | if (left + width > sourceWidth || top + height > sourceHeight) { 32 | throw new IllegalArgumentException("Crop rectangle does not fit within image data."); 33 | } 34 | 35 | for (int y = top; y < top + height; y++) { 36 | for (int x = left; x < left + width; x++) { 37 | if ((image.getRGB(x, y) & 0xFF000000) == 0) { 38 | image.setRGB(x, y, 0xFFFFFFFF);// = white 39 | } 40 | } 41 | } 42 | 43 | this.image = new BufferedImage(sourceWidth, sourceHeight, 44 | BufferedImage.TYPE_BYTE_GRAY); 45 | this.image.getGraphics().drawImage(image, 0, 0, null); 46 | this.left = left; 47 | this.top = top; 48 | } 49 | 50 | @Override 51 | public byte[] getRow(int y, byte[] row) { 52 | if (y < 0 || y >= getHeight()) { 53 | throw new IllegalArgumentException( 54 | "Requested row is outside the image: " + y); 55 | } 56 | int width = getWidth(); 57 | if (row == null || row.length < width) { 58 | row = new byte[width]; 59 | } 60 | this.image.getRaster().getDataElements(this.left, this.top + y, width, 61 | 1, row); 62 | return row; 63 | } 64 | 65 | @Override 66 | public byte[] getMatrix() { 67 | int width = getWidth(); 68 | int height = getHeight(); 69 | int area = width * height; 70 | byte[] matrix = new byte[area]; 71 | this.image.getRaster().getDataElements(this.left, this.top, width, 72 | height, matrix); 73 | return matrix; 74 | } 75 | 76 | @Override 77 | public boolean isCropSupported() { 78 | return true; 79 | } 80 | 81 | @Override 82 | public LuminanceSource crop(int left, int top, int width, int height) { 83 | return new BufferedImageLuminanceSource(this.image, this.left + left, 84 | this.top + top, width, height); 85 | } 86 | 87 | @Override 88 | public boolean isRotateSupported() { 89 | return true; 90 | } 91 | 92 | @Override 93 | public LuminanceSource rotateCounterClockwise() { 94 | 95 | int sourceWidth = this.image.getWidth(); 96 | int sourceHeight = this.image.getHeight(); 97 | 98 | AffineTransform transform = new AffineTransform(0.0, -1.0, 1.0, 0.0, 99 | 0.0, sourceWidth); 100 | 101 | BufferedImage rotatedImage = new BufferedImage(sourceHeight, 102 | sourceWidth, BufferedImage.TYPE_BYTE_GRAY); 103 | 104 | Graphics2D g = rotatedImage.createGraphics(); 105 | g.drawImage(this.image, transform, null); 106 | g.dispose(); 107 | 108 | int width = getWidth(); 109 | return new BufferedImageLuminanceSource(rotatedImage, this.top, 110 | sourceWidth - (this.left + width), getHeight(), width); 111 | } 112 | 113 | } 114 | -------------------------------------------------------------------------------- /src/main/java/com/github/binarywang/utils/qrcode/MatrixToImageWriter.java: -------------------------------------------------------------------------------- 1 | package com.github.binarywang.utils.qrcode; 2 | 3 | import com.google.zxing.common.BitMatrix; 4 | 5 | import javax.imageio.ImageIO; 6 | import java.awt.image.BufferedImage; 7 | import java.io.File; 8 | import java.io.IOException; 9 | import java.io.OutputStream; 10 | 11 | /** 12 | * 
13 |  * Created by Binary Wang on 2017-01-05.
14 |  * @author binarywang(Binary Wang)
15 |  *
16 | */ 17 | public final class MatrixToImageWriter { 18 | 19 | private static final int BLACK = 0xFF000000; 20 | private static final int WHITE = 0xFFFFFFFF; 21 | 22 | private MatrixToImageWriter() { 23 | } 24 | 25 | public static BufferedImage toBufferedImage(BitMatrix matrix) { 26 | int width = matrix.getWidth(); 27 | int height = matrix.getHeight(); 28 | BufferedImage image = new BufferedImage(width, height, 29 | BufferedImage.TYPE_INT_RGB); 30 | for (int x = 0; x < width; x++) { 31 | for (int y = 0; y < height; y++) { 32 | image.setRGB(x, y, matrix.get(x, y) ? BLACK : WHITE); 33 | } 34 | } 35 | 36 | return image; 37 | } 38 | 39 | public static void writeToFile(BitMatrix matrix, String format, File file) 40 | throws IOException { 41 | BufferedImage image = toBufferedImage(matrix); 42 | if (!ImageIO.write(image, format, file)) { 43 | throw new IOException("Could not write an image of format " + format + " to " + file); 44 | } 45 | } 46 | 47 | public static void writeToStream(BitMatrix matrix, String format, OutputStream stream) 48 | throws IOException { 49 | BufferedImage image = toBufferedImage(matrix); 50 | if (!ImageIO.write(image, format, stream)) { 51 | throw new IOException("Could not write an image of format " + format); 52 | } 53 | } 54 | 55 | } 56 | -------------------------------------------------------------------------------- /src/main/java/com/github/binarywang/utils/qrcode/MatrixToLogoImageConfig.java: -------------------------------------------------------------------------------- 1 | package com.github.binarywang.utils.qrcode; 2 | 3 | import java.awt.*; 4 | 5 | /** 6 | * 
 7 |  * Created by Binary Wang on 2017-01-05.
 8 |  * @author binarywang(Binary Wang)
 9 |  *
10 | */ 11 | public class MatrixToLogoImageConfig { 12 | /** 13 | * logo默认边框颜色 14 | */ 15 | public static final Color DEFAULT_BORDERCOLOR = Color.WHITE; 16 | /** 17 | * logo默认边框宽度 18 | */ 19 | public static final int DEFAULT_BORDER = 5; 20 | /** 21 | * logo大小默认为照片的1/5 22 | */ 23 | public static final int DEFAULT_LOGOPART = 5; 24 | 25 | private final int border; 26 | private final Color borderColor; 27 | private final int logoPart; 28 | 29 | public MatrixToLogoImageConfig() { 30 | this(DEFAULT_BORDERCOLOR, DEFAULT_LOGOPART); 31 | } 32 | 33 | public MatrixToLogoImageConfig(Color borderColor, int logoPart) { 34 | this(borderColor, logoPart, DEFAULT_BORDER); 35 | } 36 | 37 | public MatrixToLogoImageConfig(Color borderColor, int logoPart, int border) { 38 | this.borderColor = borderColor; 39 | this.logoPart = logoPart; 40 | this.border = border; 41 | } 42 | 43 | 44 | public Color getBorderColor() { 45 | return this.borderColor; 46 | } 47 | 48 | public int getBorder() { 49 | return this.border; 50 | } 51 | 52 | public int getLogoPart() { 53 | return this.logoPart; 54 | } 55 | 56 | } 57 | -------------------------------------------------------------------------------- /src/main/java/com/github/binarywang/utils/qrcode/QrcodeUtils.java: -------------------------------------------------------------------------------- 1 | package com.github.binarywang.utils.qrcode; 2 | 3 | import com.google.common.collect.Maps; 4 | import com.google.zxing.*; 5 | import com.google.zxing.common.BitMatrix; 6 | import com.google.zxing.common.HybridBinarizer; 7 | import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel; 8 | import lombok.experimental.UtilityClass; 9 | import lombok.extern.slf4j.Slf4j; 10 | 11 | import javax.imageio.ImageIO; 12 | import java.awt.*; 13 | import java.awt.geom.RoundRectangle2D; 14 | import java.awt.image.BufferedImage; 15 | import java.io.*; 16 | import java.nio.charset.StandardCharsets; 17 | import java.nio.file.Files; 18 | import java.util.Map; 19 | 20 | /** 21 | * 
 22 |  * Created by Binary Wang on 2017-01-05.
 23 |  * @author binarywang(Binary Wang)
 24 |  *
25 | */ 26 | @Slf4j 27 | @UtilityClass 28 | public class QrcodeUtils { 29 | /** 30 | * 生成二维码的默认边长，因为是正方形的，所以高度和宽度一致 31 | */ 32 | private static final int DEFAULT_LENGTH = 400; 33 | /** 34 | * 生成二维码的格式 35 | */ 36 | private static final String FORMAT = "jpg"; 37 | 38 | /** 39 | * 根据内容生成二维码数据 40 | * 41 | * @param content 二维码文字内容[为了信息安全性，一般都要先进行数据加密] 42 | * @param length 二维码图片宽度和高度 43 | */ 44 | public static BitMatrix createQrcodeMatrix(String content, int length) { 45 | return createQrcodeMatrix(content, length, ErrorCorrectionLevel.H); 46 | } 47 | 48 | public static BitMatrix createQrcodeMatrix(String content, int length, ErrorCorrectionLevel level) { 49 | Map hints = Maps.newEnumMap(EncodeHintType.class); 50 | // 设置字符编码 51 | hints.put(EncodeHintType.CHARACTER_SET, StandardCharsets.UTF_8.name()); 52 | // 指定纠错等级 53 | hints.put(EncodeHintType.ERROR_CORRECTION, level); 54 | 55 | try { 56 | return new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, length, length, hints); 57 | } catch (WriterException e) { 58 | throw new RuntimeException("内容为：【" + content + "】的二维码生成失败！", e); 59 | } 60 | } 61 | 62 | /** 63 | * 根据指定边长创建生成的二维码，允许配置logo属性 64 | * 65 | * @param content 二维码内容 66 | * @param length 二维码的高度和宽度 67 | * @param logoFile logo 文件对象，可以为空 68 | * @param logoConfig logo配置，可设置logo展示长宽，边框颜色 69 | * @return 二维码图片的字节数组 70 | */ 71 | public static byte[] createQrcode(String content, int length, File logoFile, MatrixToLogoImageConfig logoConfig) 72 | throws Exception { 73 | if (logoFile != null && !logoFile.exists()) { 74 | throw new IllegalArgumentException("请提供正确的logo文件！"); 75 | } 76 | 77 | try (InputStream logo = logoFile == null ? null : new FileInputStream(logoFile)) { 78 | return createQrcode(content, length, logo, logoConfig); 79 | } 80 | } 81 | 82 | public static byte[] createQrcode(String content, int length, InputStream logo, MatrixToLogoImageConfig logoConfig) throws Exception { 83 | BufferedImage img = generateQRCodeImage(content, length, logo, logoConfig); 84 | ByteArrayOutputStream baos = new ByteArrayOutputStream(); 85 | ImageIO.write(img, FORMAT, baos); 86 | return baos.toByteArray(); 87 | } 88 | 89 | /** 90 | * 根据指定边长创建生成的二维码 91 | * 92 | * @param content 二维码内容 93 | * @param length 二维码的高度和宽度 94 | * @param logoFile logo 文件对象，可以为空 95 | * @return 二维码图片的字节数组 96 | */ 97 | public static byte[] createQrcode(String content, int length, File logoFile) throws Exception { 98 | return createQrcode(content, length, logoFile, new MatrixToLogoImageConfig()); 99 | } 100 | 101 | /** 102 | * 创建生成默认高度(400)的二维码图片 103 | * 可以指定是否贷logo 104 | * 105 | * @param content 二维码内容 106 | * @param logoFile logo 文件对象，可以为空 107 | * @return 二维码图片的字节数组 108 | */ 109 | public static byte[] createQrcode(String content, File logoFile) throws Exception { 110 | return createQrcode(content, DEFAULT_LENGTH, logoFile); 111 | } 112 | 113 | public static BufferedImage generateQRCodeImage(String content, int length, InputStream logo, MatrixToLogoImageConfig logoConfig) throws Exception { 114 | // 生成二维码图像 115 | BitMatrix qrCodeMatrix = createQrcodeMatrix(content, length); 116 | BufferedImage img = MatrixToImageWriter.toBufferedImage(qrCodeMatrix); 117 | try { 118 | if (logo != null) { 119 | overlapImage(img, FORMAT, logo, logoConfig); 120 | } 121 | } catch (Exception e) { 122 | throw new RuntimeException("为二维码添加LOGO时失败！", e); 123 | } 124 | return img; 125 | } 126 | 127 | public static BufferedImage generateQRCodeImage(String content, int length, File logoFile, MatrixToLogoImageConfig logoConfig) throws Exception { 128 | if (logoFile != null && !logoFile.exists()) { 129 | throw new IllegalArgumentException("请提供正确的logo文件！"); 130 | } 131 | try (InputStream logo = Files.newInputStream(logoFile.toPath())) { 132 | return generateQRCodeImage(content, length, logo, logoConfig); 133 | } 134 | } 135 | 136 | public static BufferedImage generateQRCodeImage(String content, int length, InputStream logo) throws Exception { 137 | return generateQRCodeImage(content, length, logo, new MatrixToLogoImageConfig()); 138 | } 139 | 140 | public static BufferedImage generateQRCodeImage(String content, int length, File logoFile) throws Exception { 141 | return generateQRCodeImage(content, length, logoFile, new MatrixToLogoImageConfig()); 142 | } 143 | 144 | public static BufferedImage generateQRCodeImage(String content, InputStream logo) throws Exception { 145 | return generateQRCodeImage(content, DEFAULT_LENGTH, logo); 146 | } 147 | 148 | public static BufferedImage generateQRCodeImage(String content, File logoFile) throws Exception { 149 | return generateQRCodeImage(content, DEFAULT_LENGTH, logoFile); 150 | } 151 | 152 | /** 153 | * 将logo添加到二维码中间 154 | * 155 | * @param image 生成的二维码图片对象 156 | * @param logo logo文件对象 157 | * @param ignoredFormat 图片格式 158 | */ 159 | private static void overlapImage(final BufferedImage image, String ignoredFormat, final InputStream logo, 160 | MatrixToLogoImageConfig logoConfig) throws IOException { 161 | BufferedImage logoImg = ImageIO.read(logo); 162 | logoImg = clipRound(logoImg); 163 | Graphics2D g = logoImg.createGraphics(); 164 | // 考虑到logo图片贴到二维码中，建议大小不要超过二维码的1/5; 165 | int width = image.getWidth() / logoConfig.getLogoPart(); 166 | int height = image.getHeight() / logoConfig.getLogoPart(); 167 | int radius = width / 10; 168 | // logo起始位置，此目的是为logo居中显示 169 | int x = (image.getWidth() - width) / 2; 170 | int y = (image.getHeight() - height) / 2; 171 | 172 | // 创建一个支持有透明度的图像缓冲区 173 | BufferedImage buffer = g.getDeviceConfiguration().createCompatibleImage(image.getWidth(), image.getHeight(), Transparency.TRANSLUCENT); 174 | g.dispose(); 175 | 176 | // 绘制阴影 177 | g = buffer.createGraphics(); 178 | g.setComposite(AlphaComposite.getInstance(AlphaComposite.XOR, 0.1f)); 179 | g.setColor(Color.BLACK); 180 | g.fillRoundRect(x + 10, y + 10, width - 20, height, radius, radius); 181 | g.dispose(); 182 | 183 | // 绘制LOGO到缓冲区 184 | g = buffer.createGraphics(); 185 | g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC, 1)); 186 | g.drawImage(logoImg, x, y, width, height, null); 187 | 188 | // 给logo画边框 189 | // 构造一个具有指定线条宽度以及 cap 和 join 风格的默认值的实心 BasicStroke 190 | g.setStroke(new BasicStroke(logoConfig.getBorder())); 191 | g.setColor(logoConfig.getBorderColor()); 192 | g.drawRoundRect(x, y, width, height, radius, radius); 193 | g.setStroke(new BasicStroke(1)); 194 | g.setColor(Color.GRAY); 195 | g.drawRoundRect(x + logoConfig.getBorder() / 2, y + logoConfig.getBorder() / 2, width - logoConfig.getBorder(), 196 | height - logoConfig.getBorder(), radius, radius); 197 | g.dispose(); 198 | 199 | // 将带阴影的图像绘制到二维码上 200 | g = image.createGraphics(); 201 | g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP, 1.0f)); 202 | g.drawImage(buffer, 0, 0, image.getWidth(), image.getHeight(), null); 203 | g.dispose(); 204 | } 205 | 206 | /** 207 | * 为LOGO剪出圆角 208 | * 209 | * @param srcImage LOGO图像 210 | */ 211 | private static BufferedImage clipRound(BufferedImage srcImage) { 212 | int width = srcImage.getWidth(); 213 | int height = srcImage.getHeight(); 214 | int radius = width / 10; 215 | 216 | BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB); 217 | Graphics2D g = image.createGraphics(); 218 | g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); 219 | g.setClip(new RoundRectangle2D.Double(0, 0, width, height, radius, radius)); 220 | g.drawImage(srcImage, 0, 0, null); 221 | g.dispose(); 222 | return image; 223 | } 224 | 225 | /** 226 | * 解析二维码 227 | * 228 | * @param file 二维码文件内容 229 | * @return 二维码的内容 230 | */ 231 | public static String decodeQrcode(File file) throws IOException, NotFoundException { 232 | BufferedImage image = ImageIO.read(file); 233 | LuminanceSource source = new BufferedImageLuminanceSource(image); 234 | Binarizer binarizer = new HybridBinarizer(source); 235 | BinaryBitmap binaryBitmap = new BinaryBitmap(binarizer); 236 | Map hints = Maps.newEnumMap(DecodeHintType.class); 237 | hints.put(DecodeHintType.CHARACTER_SET, StandardCharsets.UTF_8.name()); 238 | return new MultiFormatReader().decode(binaryBitmap, hints).getText(); 239 | } 240 | } 241 | -------------------------------------------------------------------------------- /src/test/java/com/github/binarywang/utils/qrcode/QrcodeUtilsTest.java: -------------------------------------------------------------------------------- 1 | package com.github.binarywang.utils.qrcode; 2 | 3 | import com.beust.jcommander.internal.Lists; 4 | import lombok.extern.slf4j.Slf4j; 5 | import org.apache.commons.io.FileUtils; 6 | import org.apache.log4j.BasicConfigurator; 7 | import org.testng.Assert; 8 | import org.testng.annotations.BeforeTest; 9 | import org.testng.annotations.Test; 10 | 11 | import javax.imageio.ImageIO; 12 | import java.awt.*; 13 | import java.awt.image.BufferedImage; 14 | import java.io.File; 15 | import java.io.InputStream; 16 | import java.nio.file.Files; 17 | import java.nio.file.Path; 18 | import java.util.List; 19 | 20 | /** 21 | * 
22 |  * Created by Binary Wang on 2017-01-05.
23 |  * @author binarywang(Binary Wang)
24 |  *
25 | */ 26 | @Slf4j 27 | public class QrcodeUtilsTest { 28 | 29 | private String content = "abc"; 30 | private List generatedQrcodePaths = Lists.newArrayList(); 31 | 32 | @BeforeTest 33 | public void setup() { 34 | BasicConfigurator.configure(); 35 | } 36 | 37 | @Test 38 | public void testCreateQrcode() throws Exception { 39 | byte[] bytes = QrcodeUtils.createQrcode(content, 800, null); 40 | Path path = Files.createTempFile("qrcode_800_", ".jpg"); 41 | generatedQrcodePaths.add(path); 42 | log.info("{}", path.toAbsolutePath()); 43 | Files.write(path, bytes); 44 | 45 | bytes = QrcodeUtils.createQrcode(content, null); 46 | path = Files.createTempFile("qrcode_400_", ".jpg"); 47 | generatedQrcodePaths.add(path); 48 | log.info("{}", path.toAbsolutePath()); 49 | Files.write(path, bytes); 50 | } 51 | 52 | @Test 53 | public void testCreateQrcodeWithLogo() throws Exception { 54 | try (InputStream inputStream = ClassLoader.getSystemResourceAsStream("logo.png")) { 55 | File logoFile = Files.createTempFile("logo_", ".jpg").toFile(); 56 | FileUtils.copyInputStreamToFile(inputStream, logoFile); 57 | log.info("{}", logoFile); 58 | byte[] bytes = QrcodeUtils.createQrcode(content, 800, logoFile); 59 | Path path = Files.createTempFile("qrcode_with_logo_", ".jpg"); 60 | generatedQrcodePaths.add(path); 61 | log.info("{}", path.toAbsolutePath()); 62 | Files.write(path, bytes); 63 | } 64 | } 65 | 66 | @Test(dependsOnMethods = {"testCreateQrcode", "testCreateQrcodeWithLogo"}) 67 | public void testDecodeQrcode() throws Exception { 68 | for (Path path : generatedQrcodePaths) { 69 | Assert.assertEquals(QrcodeUtils.decodeQrcode(path.toFile()), content); 70 | } 71 | } 72 | 73 | 74 | @Test 75 | public void testPersonCode() throws Exception { 76 | BufferedImage img = QrcodeUtils.generateQRCodeImage(content, 400, ClassLoader.getSystemResourceAsStream("logo.png")); 77 | File outFile = Files.createTempFile("qrcode_with_logo_", ".png").toFile(); 78 | log.info("{}", outFile.getAbsolutePath()); 79 | ImageIO.write(img, "png", outFile); 80 | Desktop.getDesktop().open(outFile); 81 | } 82 | 83 | } 84 | -------------------------------------------------------------------------------- /src/test/resources/logo.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/binarywang/qrcode-utils/16b6c6f894cff4d27e07649013fdb1bfb2a4a441/src/test/resources/logo.png --------------------------------------------------------------------------------