图片转换成Base64后 获取图片信息(长宽)

 

 

byte[] strBase64 = new BASE64Decoder().decodeBuffer(data);
try {
InputStream is = new ByteArrayInputStream(strBase64);
BufferedImage image = ImageIO.read(is);
System.out.println(image.getHeight());
System.out.println(image.getWidth());
}catch (Exception e){
e.printStackTrace();
}