使用java将透明gif/png转换为jpeg

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

import javax.imageio.ImageIO;

import net.coobird.thumbnailator.Thumbnails;

public class TransparentImageToJpeg {

    public static void main(String[] args) {
        try {
            // 读取透明GIF/PNG图片
            File inputFile = new File("input.png");
            BufferedImage inputImage = ImageIO.read(inputFile);

            // 使用Thumbnailator将图片转换为JPEG
            BufferedImage outputImage = Thumbnails.of(inputImage)
                    .outputFormat("jpg")
                    .asBufferedImage();

            // 保存JPEG图片
            File outputFile = new File("output.jpg");
            ImageIO.write(outputImage, "jpg", outputFile);

            System.out.println("转换成功！");

        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}