代号为One的图像到字节数组

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

public class ImageToByteArray {
    public static void main(String[] args) {
        try {
            // 读取图像文件
            File imageFile = new File("One.jpg");
            BufferedImage image = ImageIO.read(imageFile);

            // 将图像转换为字节数组
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            ImageIO.write(image, "jpg", baos);
            byte[] byteArray = baos.toByteArray();

            // 打印字节数组长度
            System.out.println("字节数组长度：" + byteArray.length);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}