java获取上传图片的宽高

package util;

import java.awt.image.BufferedImage;

import java.io.File;

import java.io.FileInputStream;

import java.io.InputStream;

public class ImageTools {

public static int getImgWidth(File file) {

InputStream is = null;

BufferedImage src = null;

int ret = -1;

try {

is = new FileInputStream(file);

src = javax.imageio.ImageIO.read(is);

ret = src.getWidth(null); // 得到源图宽

is.close();

} catch (Exception e) {

e.printStackTrace();

}

return ret;

}

public static int getImgHeight(File file) {

InputStream is = null;

BufferedImage src = null;

int ret = -1;

try {

is = new FileInputStream(file);

src = javax.imageio.ImageIO.read(is);

ret = src.getHeight(null); // 得到源图高

is.close();

} catch (Exception e) {

e.printStackTrace();

}

return ret;

}

}

package util;

import java.awt.Image;

import java.awt.image.BufferedImage;

import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.net.MalformedURLException;

import java.net.URL;

import java.util.Map;

import javax.imageio.ImageIO;

public class test {

public static void main(String[] args) {

String imagePath="F:\images\1.jpg";

//System.out.println("高"+ImagesUtil.GetPhotoHeight(imagePath));

//System.out.println("宽"+ImagesUtil.GetPhotoWidth(imagePath));

String imageUrl="http://avatar.csdn.net/9/F/2/1_5iasp.jpg";

String url="F:/images/1.jpg";

File file=new File(url);

Integer i= ImageTools.getImgHeight(file);

System.out.println(i);

}

}