Java避免重复上传相同图片的解决方案

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.concurrent.ThreadLocalRandom;
import javax.imageio.ImageIO;

private File adjustImage(File originalFile) throws IOException {
    BufferedImage originalImage = ImageIO.read(originalFile);
    if (originalImage == null) {
        throw new IOException("无法读取图像文件");
    }

    // 轻微调整大小
    int widthAdjustment = ThreadLocalRandom.current().nextInt(-2, 3);
    int heightAdjustment = ThreadLocalRandom.current().nextInt(-2, 3);
    int newWidth = Math.max(1, originalImage.getWidth() + widthAdjustment);
    int newHeight = Math.max(1, originalImage.getHeight() + heightAdjustment);

    BufferedImage resizedImage = new BufferedImage(newWidth, newHeight, originalImage.getType());
    resizedImage.getGraphics().drawImage(originalImage.getScaledInstance(newWidth, newHeight, java.awt.Image.SCALE_SMOOTH), 0, 0, null);

    // 添加随机噪声
    BufferedImage noisyImage = addOptimizedRandomNoise(resizedImage);

    // 将调整后的图片保存到临时文件
    File adjustedFile = File.createTempFile("adjusted_image", ".jpg");
    ImageIO.write(noisyImage, "jpg", adjustedFile);

    return adjustedFile;
}

private BufferedImage addOptimizedRandomNoise(BufferedImage image) {
    BufferedImage noisyImage = new BufferedImage(image.getWidth(), image.getHeight(), image.getType());
    for (int x = 0; x < image.getWidth(); x++) {
        for (int y = 0; y < image.getHeight(); y++) {
            int pixel = image.getRGB(x, y);
            int red = (pixel >> 16) & 0xff;
            int green = (pixel >> 8) & 0xff;
            int blue = pixel & 0xff;

            // 添加随机噪声，范围缩小到-5到5，并且以0为中心对称分布
            red = Math.min(255, Math.max(0, red + ThreadLocalRandom.current().nextInt(-5, 6)));
            green = Math.min(255, Math.max(0, green + ThreadLocalRandom.current().nextInt(-5, 6)));
            blue = Math.min(255, Math.max(0, blue + ThreadLocalRandom.current().nextInt(-5, 6)));

            int newPixel = (pixel & 0xFF000000) | (red << 16) | (green << 8) | blue;
            noisyImage.setRGB(x, y, newPixel);
        }
    }
    return noisyImage;
}