用Java编码和解码图像

Question

how do you encode and decode images in java?

I have this following scenario, I want to encode an image for example(abc.gif) in any format (bytes, base64). Then Send it over a SOAP message and decode the image and save the image in a folder on another computer.

I am exposing this as a web service. I am using TIBCO designer to invoke this web service of encoding of images.

Any way to do the java encoding of images?

Answer 1

You can create an Image from an array of bytes with Toolkit.createImage . To encode an image you could use an ImageWriter . In general, the complete javax.imageio package can probably help you a lot.

Answer 2

If you're looking for libraries to do Base64 or similar encoding/decoding, then I would say Apache Commons Codec . At least that's what I've used in the past.

Answer 3

I'd just transfer the bytes of the image file plus additional information like filename etc. Then you just write the bytes to a new file and you're done. It's more like general file streaming, but you might also put some information on the image into the header (where the filename is).