Hi all,
I worked on this for several hours today and I'm pretty close
to a solution but clearly need some help from someone who's pulled this off. I'm trying
to post an
image to a web service from the iPhone. I'll post the code first then explain everything I've tried:
NSData *imageData = UIImageJPEGRepresentation(barCodePic, .9);
NSString *soapMsg =
[NSString stringWithFormat:
@"<?xml version=\"1.0\" encoding=\"utf-8\"?><soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\"><soap:Body><WriteImage xmlns=\"http://myserver/imagewebservice/\"><ImgIn>%@</ImgIn></WriteImage></soap:Body></soap:Envelope>", [NSData dataWithData:imageData]
];
NSURL *url = [NSURL URLWithString:@"http://myserver/imagewebservice/service1.asmx"];
NSMutableURLRequest *req = [NSMutableURLRequest requestWithURL:url];
NSString *msgLength =
[NSString stringWithFormat:@"%d", [soapMsg length]];
[req addValue:@"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"];
[req addValue:@"http://myserver/imagewebservice/WriteImage" forHTTPHeaderField:@"SOAPAction"];
[req addValue:msgLength forHTTPHeaderField:@"Content-Length"];
[req setHTTPMethod:@"POST"];
[req setHTTPBody: [soapMsg dataUsingEncoding:NSUTF8StringEncoding]];
conn = [[NSURLConnection alloc] initWithRequest:req delegate:self];
if (conn) {
webData = [[NSMutableData data] retain];
}
First thing, this code works fine for anything but an
image. The web service is running on my local network and I can change the source code at will and if I change the "ImgIn" parameter
to a string and pass
a string
in, everything works fine, I get
a return value no problem. So there are no connectivity issues at all, I'm able
to call and get data from this web service on this server no problems. But I need
to upload an
image to this web service via the ImgIn parameter, so the above code is my best shot so far. I also have didReceiveResponse, didReceiveData, didFailWithError, etc all being handled. The above code fires off didRecieveResponse every time. However didReceiveData is never fired and it's like the web service itself never even runs. When I debug the web service itself, it runs and debugs fine when I use
a string parameter, but with the
image parameter, it never even debugs when I call it. It's almost like the ImgIn parameter is too long (it's huge when I output it
to the screen) and the web service just chokes on it. I've read about having
to encode
to Base64 when using this method, but I can't find any good links on
how that's done. If that's what I'm doing wrong, can you PLEASE provide code as
to how to do this, not just "you need
to use Base64", I'd really appreciate it as I can find almost nothing on
how to implement this with an example. Other than that, I'm kind of lost, it seems like I'm doing everything else right. Please help!
Thanks
