JSON Binary Array to Image in Java

I'm consuming a .NET json service that outputs a byte array. The byte arrary gets converted into the integer representation of each byte. When viewed in Fiddler, it looks like this:

{"imageBackground":[137,80,78,71,13,10,26,10,0,0,0,13,73,72,68,...]}

In Java, I've got the data back into a JSONObject, but I'm unfamiliar with Java so I'm not sure where to go from here to convert that into something usable. I suspect if I can get it back into a stream of some开发者_StackOverflow社区 sort I should be able to make it viewable as an image (PNG/JPG/etc)...

Any tips form here?

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Get imageBackground as a byte array, and then hand it off to ImageIO:

byte[] imageBackground = // set me here;
ByteArrayInputStream input = new ByteArrayInputStream(imageBackground);
try {
    BufferedImage ImageIO.read(input);
    // do fun stuff with the image...
}
finally {
    input.close();
}

I'm not sure what your application wants to do as the image, but once you have a BufferedImage you can use ImageIO to convert it to another type, you can do transforms, output to a file...the sky's the limit. You can find a tutorial for that and more by Googling.

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Something like this (the methods names are probably incorrect, don't know them from the top of my head)

JSONArray jBytes = theObject.getArray("imageBackground");
byte[] imData = new byte[jBytes.size()];
for (int i = 0; i < jBytes.size(); i++) {
   imData[i] = jBytes.get(i);
}

That's how you make it a real byte array. Then do what stevevls posted, or whatever you want.