JAVA获取图片宽高

package test;

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Iterator;

import javax.imageio.ImageIO;
import javax.imageio.ImageReader;
import javax.imageio.stream.ImageInputStream;

public class bbb {
	
	public static void main(String[] args) throws FileNotFoundException, IOException {
		try {
		   //方法1：
		   File file = new File("d:/ant_logo_large.gif");
		   Iterator<ImageReader> readers = ImageIO.getImageReadersByFormatName("gif");
		   ImageReader reader = (ImageReader)readers.next();
		   ImageInputStream iis = ImageIO.createImageInputStream(file);
		   reader.setInput(iis, true);
		   System.out.println("width:"+reader.getWidth(0));
		   System.out.println("height:"+reader.getHeight(0));
		   //方法2：
		   File picture = new File("d:/ant_logo_large.gif");
	       BufferedImage sourceImg =ImageIO.read(new FileInputStream(picture)); 
	       System.out.println(sourceImg.getWidth());
	       System.out.println(sourceImg.getHeight());
		} catch (IOException e) {
		   e.printStackTrace();
		  }
	}
}

 链接：http://immortal2512.iteye.com/blog/406744