学步园

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

import javax.imageio.ImageIO;

public class WriteImage {
	public static void main(String[] args) {
		BufferedImage image = null;
		try {

			URL url = new URL("http://www.google.com/logos/classicplus.png");
			image = ImageIO.read(url);

			ImageIO.write(image, "jpg", new File("E:\\Test\\classicplus.jpg"));
			ImageIO.write(image, "gif", new File("E:\\Test\\classicplus.gif"));
			ImageIO.write(image, "png", new File("E:\\Test\\classicplus.png"));

		} catch (IOException e) {
			e.printStackTrace();
		}
		System.out.println("Done");
	}
}