Problem parsing xml(J2ME Web Service spec) containing image in cldc/midp

Question

Hi,
I have created a restful web service that generates xml file in app server. I have created xml file using JAXB2.1 spec. This xml file has many elements starting from char data to image (binary data). I could successfully create xml file and developed another test client to read the same file using JAXB. However, I am finding a problem while getting the image in the java me client (cldc1.1 and midp2.0).
I am using J2ME Web Services Specification, using javax.xml.parsers.SAXParser to parse the xml file. Parsing is successful and got the character data. But the image data is not accurate, so I am not getting the image. I suspect the problem is with encoding but not sure how to solve this. At the server end, I verified that xml file is encoded with "UTF-8" encoding, not sure how to decode at the client end.
I am totally confused as how to get the accurate image data, not sure if I use kxml parser would solve my problem.
I would really appreciate if somebody can get back to me as this is very very important.

Answer 1

Try to send to your web service the byte array instead of string and then convert the byte array into an image
using a method like the following one in your service:
// C# code
public Image ByteArrayToImage(byte[] byteArrayIn)
     MemoryStream ms = new MemoryStream(byteArrayIn);
     Image returnImage = Image.FromStream(ms);
     return returnImage;
}There can be some problem between encoding in J2ME and .Net so try different encodings in gathering the image bytes in your j2ME application, but, instead of jpg which has more encodings, try png that is a more standardized image compression(open standard).