从图片文件或BufferedImage中得到InputStream

 

1.如何从BufferedImage对象中获取InputStream对象
public InputStream getImageStream(String layerName,List colors,String[] pixels){
        InputStream is = null;

        BufferedImage bi = createImage(layerName, colors, pixels);

        bi.flush();

        ByteArrayOutputStream bs = new ByteArrayOutputStream();

        ImageOutputStream imOut;
        try {
            imOut = ImageIO.createImageOutputStream(bs);

            ImageIO.write(bi, "png",imOut);

            is= new ByteArrayInputStream(bs.toByteArray());

        } catch (IOException e) {
            e.printStackTrace();
        }
        return is;
    }

 

转载于:https://blog.51cto.com/shpshao/647529