简体   繁体   English

如何将ImageView转换为InputStream

[英]How to convert a ImageView to InputStream

I have an ImageView that contains an image, what I need is to make a getImage() of the ImageView and convert it to an InputStream . 我有一个包含图像的ImageView ,我需要做一个ImageView的getImage()并将其转换为InputStream This is the code that I have: 这是我的代码:

try {

    File fileImage = new File(ivImage.getImage());

    InputStream isImage = (InputStream) new FileInputStream(fileImage);

} catch (FileNotFoundException e) {
    e.printStackTrace();
}

Is there a way to get the ImageView image and convert it to InputStream ? 有没有办法获取ImageView图像并将其转换为InputStream

Thanks 谢谢

What if you get bytes from an image and create ByteArrayInputStream? 如果您从图像获取字节并创建ByteArrayInputStream怎么办?

ImageView view = new ImageView();
BufferedImage bImage = SwingFXUtils.fromFXImage(view.getImage(), null);
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
try {
    ImageIO.write(bImage, "png", outputStream);
    byte[] res  = outputStream.toByteArray();
    InputStream inputStream = new ByteArrayInputStream(res);
} catch (IOException e) {
    e.printStackTrace();
}

声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.

 
粤ICP备18138465号  © 2020-2024 STACKOOM.COM