Java如何转换图片的格式

package ImageIO;import java.awt.Color;import java.awt.image.BufferedImage;import java.io.File;import java.io.IOException;import javax.imageio.ImageIO;public class ConvertImageFile {

public static void main(String[] args) {

BufferedImage bufferedImage; try { //1.读取图片
bufferedImage = ImageIO.read(new File("D:\\1.png")); //2.创建一个空白大小相同的RGB背景
BufferedImage newBufferedImage = new BufferedImage(bufferedImage.getWidth(),
bufferedImage.getHeight(), BufferedImage.TYPE_INT_RGB);
newBufferedImage.createGraphics().drawImage(bufferedImage, 0, 0, Color.WHITE, null); //3.再次写入的时候以jpeg图片格式
ImageIO.write(newBufferedImage, "jpg", new File("D:\\1.jpg"));

System.out.println("成功将png格式图片转换为jpg格式");

} catch (IOException e) {

e.printStackTrace();

}

}

}

如何转换图片的格式