在iOS中将图像（png / jpeg）转换为多部分对象

Question

I have an app thats needs to connect to a backend server. The Java developer tells me the app must send an image as a multipart object. I've spent hours searching the web for information on converting images to multipart files in ios but I've found nothing useful. I have no prior knowledge of multipart also.

Could someone post a sample code or point me in the right direction/necessary steps involved? Or share any knowledge that they may have in regards to sending images as multipart objects.

Sorry I hope this isnt a bit vague and I can supply more information if needed.

-the server uses json

Answer 1

You might consider using something like AFNetworking , which has a http client class that can take care of the multipart data upload for you.

    NSMutableURLRequest *request = [httpClient multipartFormRequestWithMethod:@"POST" path:@"upload/" 
               parameters:nil 
constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
        [formData appendPartWithFileData:yourData 
                                    name:@"attachment" 
                                fileName:@"attachment.jpg" 
                                mimeType:@"image/jpg"];
    }];