BufferedImage 将照片logo添加到二维码中间

/**
   * 将照片logo添加到二维码中间
   *
   * @param image 生成的二维码照片对象
   * @param imagePath 照片保存路径
   * @param logoPath logo照片路径
   * @param formate 照片格式
   */
  public static void overlapImage(
      BufferedImage image,
      String formate,
      String imagePath,
      String logoPath,
      MatrixToLogoImageConfig logoConfig) {
    try {
      BufferedImage logo = ImageIO.read(new File(logoPath));
      Graphics2D g = image.createGraphics();
      // 考虑到logo照片贴到二维码中，建议大小不要超过二维码的1/5;
      int width = image.getWidth() / logoConfig.getLogoPart();
      int height = image.getHeight() / logoConfig.getLogoPart();
      // logo起始位置，此目的是为logo居中显示
      int x = (image.getWidth() - width) / 2;
      int y = (image.getHeight() - height) / 2;
      // 绘制图
      g.drawImage(logo, x, y, width, height, null);

      // 给logo画边框
      // 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
      g.setStroke(new BasicStroke(logoConfig.getBorder()));
      g.setColor(logoConfig.getBorderColor());
      g.drawRect(x, y, width, height);

      g.dispose();
      // 写入logo照片到二维码
      ImageIO.write(image, formate, new File(imagePath));
    } catch (Exception e) {
      e.printStackTrace();
    }
  }

 /**
  * 插入LOGO
  *
  * @param source 二维码图片
  * @param imgPath LOGO图片地址
  * @param needCompress 是否压缩
  * @throws Exception
  */
 private static void insertImage(BufferedImage source, String imgPath, boolean needCompress)
     throws Exception {
   File file = new File(imgPath);
   if (!file.exists()) {
     System.err.println("" + imgPath + " 该文件不存在！");
     return;
   }
   Image src = ImageIO.read(new File(imgPath));
   int width = src.getWidth(null);
   int height = src.getHeight(null);
   if (needCompress) { // 压缩LOGO
     if (width > WIDTH) {
       width = WIDTH;
     }
     if (height > HEIGHT) {
       height = HEIGHT;
     }
     Image image = src.getScaledInstance(width, height, Image.SCALE_SMOOTH);
     BufferedImage tag = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
     Graphics g = tag.getGraphics();
     g.drawImage(image, 0, 0, null); // 绘制缩小后的图
     g.dispose();
     src = image;
   }
   // 插入LOGO
   Graphics2D graph = source.createGraphics();
   int x = (QRCODE_WIDTH - width) / 2;
   int y = (QRCODE_HEIGHT - height) / 2;
   graph.drawImage(src, x, y, width, height, null);
   Shape shape = new RoundRectangle2D.Float(x, y, width, width, 6, 6);
   graph.setStroke(new BasicStroke(3f));
   graph.draw(shape);
   graph.dispose();
 }

import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import javax.imageio.ImageIO;

public class QRCodeWithLogo {
    public static void main(String[] args) {
        try {
            // Step 1: Generate QR code
            String qrCodeContent = "Your QR code content here";
            BufferedImage qrCodeImage = generateQRCode(qrCodeContent);
            
            // Step 2: Load and resize logo
            BufferedImage logoImage = ImageIO.read(new File("logo.png"));
            int logoWidth = 50; // Adjust the logo size as needed
            int logoHeight = 50;
            Image resizedLogo = logoImage.getScaledInstance(logoWidth, logoHeight, Image.SCALE_SMOOTH);
            
            // Step 3: Calculate center position
            int centerX = (qrCodeImage.getWidth() - logoWidth) / 2;
            int centerY = (qrCodeImage.getHeight() - logoHeight) / 2;
            
            // Step 4: Add logo to QR code
            Graphics2D graphics = qrCodeImage.createGraphics();
            graphics.drawImage(resizedLogo, centerX, centerY, null);
            graphics.dispose();
            
            // Step 5: Save the final QR code with logo
            File outputImage = new File("qrCodeWithLogo.png");
            ImageIO.write(qrCodeImage, "png", outputImage);
            
            System.out.println("QR code with logo created successfully!");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    
    private static BufferedImage generateQRCode(String content) throws Exception {
        // Use a QR code library like ZXing to generate QR code
        // Return the BufferedImage containing the QR code
        // Example: return QRCode.from(content).withSize(200, 200).bufferedImage();
        return null;
    }
}