How to use Data URI from Image as an InputStream?

Question

I have retrieved the base64 data uri from a html5 canvas. Within my servlet, I would like to decode the data uri and use it as an input stream as shown in \"xxx\" below. The

Answer 1

This needs almost the exact opposite to this answer! Or at least, the reverse of it. It answers Image to base 64 String, whereas this use-case is String to Image.

Look to javax.xml.bind.DatatypeConverter.parseBase64Binary(String) to get a byte[] of the String.

Use the byte[] to construct a ByteArrayInputStream.