帮我写一段Java代码生成二维码,并二维码中心携带log,且log是彩色的,

好的，以下是Java代码生成带彩色logo的二维码：

import java.awt.Color;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.File;
import javax.imageio.ImageIO;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.qrcode.QRCodeWriter;
import com.google.zxing.client.j2se.MatrixToImageWriter;
import com.google.zxing.client.j2se.MatrixToImageConfig;

public class QRCodeGenerator {

    public static void main(String[] args) {
        String qrCodeText = "https://www.example.com";
        String filePath = "qrcode.png";
        String logoPath = "logo.png";
        int size = 300;

        try {
            QRCodeWriter qrWriter = new QRCodeWriter();
            BitMatrix bitMatrix = qrWriter.encode(qrCodeText, BarcodeFormat.QR_CODE, size, size);

            BufferedImage qrImage = MatrixToImageWriter.toBufferedImage(bitMatrix, getMatrixConfig());

            BufferedImage logoImage = ImageIO.read(new File(logoPath));
            Graphics2D graphics = qrImage.createGraphics();

            int logoSize = size * 25 / 100;

            // 设置logo的中心位置
            int centerX = (qrImage.getWidth() - logoSize) / 2;
            int centerY = (qrImage.getHeight() - logoSize) / 2;

            graphics.drawImage(logoImage, centerX, centerY, logoSize, logoSize, null);

            // 设置彩色logo
            graphics.setPaint(Color.RED);
            graphics.fillRoundRect(centerX, centerY, logoSize, logoSize, 50, 50);
            graphics.setComposite(java.awt.AlphaComposite.SrcIn);

            graphics.drawImage(logoImage, centerX, centerY, logoSize, logoSize, null);

            ImageIO.write(qrImage, "png", new File(filePath));
            System.out.println("QR Code with logo has been generated.");
        } catch (Exception e) {
            System.out.println(e.getMessage());
        }
    }

    private static MatrixToImageConfig getMatrixConfig() {
        // 黑色背景, 白色前景
        return new MatrixToImageConfig(0xFF000000, 0xFFFFFFFF);
    }
}

这段代码会生成一个二维码，其中包含指定的文本，并将彩色的logo添加到二维码中间。你需要将logo命名为`logo.png`，并与代码放在同一目录下，二维码将保存在`qrcode.png`。