Google提供的Zxing 带图片的log ，复制代码即可食用只要更改图片存地址和log地址即可 Demo级代码，规范的话更改即可

青旅半醒 2021-09-02 03:09 161阅读 0赞

//导入jar包

<dependency>
                <groupId>com.google.zxing</groupId>
                <artifactId>core</artifactId>
                <version>3.3.3</version>
            </dependency>
    
        
            <dependency>
                <groupId>com.google.zxing</groupId>
                <artifactId>javase</artifactId>
                <version>3.3.3</version>
            </dependency>

//放入代码

import java.awt.Graphics2D;
    import java.awt.image.BufferedImage;
    import java.io.File;
    import java.util.HashMap;
    import java.util.Map;
    import java.util.Objects;
    import javax.imageio.ImageIO;
    import com.google.zxing.BarcodeFormat;
    import com.google.zxing.EncodeHintType;
    import com.google.zxing.MultiFormatWriter;
    import com.google.zxing.WriterException;
    import com.google.zxing.common.BitMatrix;
    import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
    
    
    public class Demo1 { 
    
    
        private static final int QRCOLOR = 0xFF000000; // 默认是黑色
        private static final int BGWHITE = 0xFFFFFFFF; // 背景颜色
        private static final int WIDTH = 400; // 二维码宽
        private static final int HEIGHT = 400; // 二维码高
    
        // 用于设置QR二维码参数
        private static Map<EncodeHintType, Object> hints = new HashMap<EncodeHintType, Object>() { 
            private static final long serialVersionUID = 1L;
            { 
                put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);// 设置QR二维码的纠错级别（H为最高级别）具体级别信息
                put(EncodeHintType.CHARACTER_SET, "utf-8");// 设置编码方式
            }
        };
    
        // 生成带logo的二维码图片
        public static void drawLogoQRCode(File logoFile, File codeFile, String qrUrl) { 
            try { 
                MultiFormatWriter 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
                BitMatrix bm = multiFormatWriter.encode(qrUrl, BarcodeFormat.QR_CODE, WIDTH, HEIGHT, hints);
                BufferedImage image = new BufferedImage(WIDTH, HEIGHT, BufferedImage.TYPE_INT_RGB);
    
                // 开始利用二维码数据创建Bitmap图片，分别设为黑（0xFFFFFFFF）白（0xFF000000）两色
                for (int x = 0; x < WIDTH; x++) { 
                    for (int y = 0; y < HEIGHT; y++) { 
                        image.setRGB(x, y, bm.get(x, y) ? QRCOLOR : BGWHITE);
                    }
                }
    
                int width = image.getWidth();
                int height = image.getHeight();
                if (Objects.nonNull(logoFile) && logoFile.exists()) { 
                    // 构建绘图对象
                    Graphics2D g = image.createGraphics();
                    // 读取Logo图片
                    BufferedImage logo = ImageIO.read(logoFile);
                    // 开始绘制logo图片
                    g.drawImage(logo, width * 2 / 5, height * 2 / 5, width * 2 / 10, height * 2 / 10, null);
                    g.dispose();
                    logo.flush();
                }
                image.flush();
                ImageIO.write(image, "png", codeFile); // TODO
            } catch (Exception e) { 
                e.printStackTrace();
            }
        }
        public static void main(String[] args) throws WriterException { 
            File logoFile = new File("C:\\Users\\lenovo1\\Pictures\\butterfly.jpg"); //logo
            File QrCodeFile = new File("D:\\i-tool\\demo\\"+ "qqqq"+".png");  //二维码生成地址以及名称格式
            String url = "https://www.baidu.com"; // 扫描二维码进入网址
            Demo1.drawLogoQRCode(logoFile, QrCodeFile, url);
        }
    
    }

//demo级代码使用的是相对路径 假如存放在服务器端的话 更改路径即可  
//代码的话插入即可使用，一些命名之类的更改 即可