java获取图片分辨率

package com.haiyisoft.hyoaPc;

import java.awt.image.BufferedImage;

import java.io.IOException;

import java.io.InputStream;

import java.net.URL;

import javax.imageio.ImageIO;

public class ReturnImgWH {

public static String getWidthAndHeight(String url) {

try {

InputStream is = new URL(url).openStream();

BufferedImage sourceImg = ImageIO.read(is);

int width = sourceImg.getWidth();

int height = sourceImg.getHeight();

return width+"*"+height;

} catch (IOException e) {

}

return "";

}

public static void main(String[] args) {

ReturnImgWH returnImgWH = new ReturnImgWH();

String ss=returnImgWH.getWidthAndHeight("http://172.20.188.232:8017/generic/web/upload/1563446854899.png");

System.out.println(ss);

}

}