如何用Java创建设计QR码？

<dependency>
    <groupId>com.google.zxing</groupId>
    <artifactId>core</artifactId>
    <version>3.4.1</version>
</dependency>

import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.qrcode.QRCodeWriter;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;

public static void generateQRCode(String text, int width, int height, String filePath) {
    try {
        // 设置QR码的一些参数
        HashMap<EncodeHintType, Object> hints = new HashMap<>();
        hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
        hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L);
        hints.put(EncodeHintType.MARGIN, 1);

        // 使用ZXing库生成QR码的位矩阵
        BitMatrix bitMatrix = new MultiFormatWriter().encode(text, BarcodeFormat.QR_CODE, width, height, hints);

        // 将位矩阵渲染为图像
        BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
        for (int x = 0; x < width; x++) {
            for (int y = 0; y < height; y++) {
                image.setRGB(x, y, bitMatrix.get(x, y) ? 0x000000 : 0xFFFFFF);
            }
        }

        // 将图像保存到文件
        ImageIO.write(image, "PNG", new File(filePath));
    } catch (Exception e) {
        e.printStackTrace();
    }
}

public static void main(String[] args) {
    String text = "Hello, QR Code!";
    int width = 200;
    int height = 200;
    String filePath = "path/to/save/qrcode.png";
    generateQRCode(text, width, height, filePath);
}