1,获取本地图片大小(尺寸)
File picture=new File(strSrc);
BufferedImage sourceImg=ImageIO.read(new FileInputStream(picture));
sourceImg.getWidth();
sourceImg.getHeight();
2,获取网络图片大小(尺寸)
BufferedImage sourceImg=ImageIO.read(new URL(strSrc).openStream());
sourceImg.getWidth();
sourceImg.getHeight();
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