问题
I've been trying to upload an image to my AWS server using multipart form data afnetworking 3.0 but apparently, every image I tried to upload ended up in the failure block. The codes in written in objective-c.
- (NSURLSessionUploadTask *)uploadImageTask:(NSMutableDictionary *)dictionary
{
NSString *s3BucketUrl = [dictionary objectForKey:@"s3BucketUrl"];
NSData *imageData = [dictionary objectForKey:@"imageData"];
NSString *contentType = [dictionary objectForKey:@"contentType"];
NSString *filename = [dictionary objectForKey:@"filename"];
NSMutableURLRequest *request = [[AFHTTPRequestSerializer serializer] multipartFormRequestWithMethod:@"POST" URLString:s3BucketUrl parameters:dictionary constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
[formData appendPartWithFileData:imageData name:@"file" fileName:filename mimeType:contentType];
} error:nil];
AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];
NSURLSessionUploadTask *uploadTask = [[NSURLSessionUploadTask alloc] init];
uploadTask = [manager
uploadTaskWithStreamedRequest:request
progress:^(NSProgress * _Nonnull uploadProgress) {
// This is not called back on the main queue.
// You are responsible for dispatching to the main queue for UI updates
dispatch_async(dispatch_get_main_queue(), ^{
//Update the progress view
});
}
completionHandler:^(NSURLResponse * _Nonnull response, id _Nullable responseObject, NSError * _Nullable error) {
if (!error) {
if (self.delegate != nil && [self.delegate respondsToSelector:@selector(onUploadImageTask:)])
{
[self.delegate onUploadImageTask:nil];
}
} else {
if (self.delegate != nil && [self.delegate respondsToSelector:@selector(onUploadImageTask:)])
{
[self.delegate onUploadImageTask:error];
}
}
}];
[uploadTask resume];
return uploadTask;
}
The error I'm getting is
Error Domain=com.alamofire.error.serialization.response Code=-1011 "Request failed: bad request (400)" UserInfo={NSUnderlyingError=0x170248940 {Error Domain=com.alamofire.error.serialization.response Code=-1016 "Request failed: unacceptable content-type: application/xml" UserInfo={com.alamofire.serialization.response.error.response= { URL: https://....s3.amazonaws.com/ } { status code: 400, headers { Connection = close; "Content-Type" = "application/xml"; Date = "Tue, 20 Dec 2016 01:53:47 GMT"; Server = AmazonS3; "Transfer-Encoding" = Identity; "x-amz-id-2" = "....."; "x-amz-request-id" = ....; } },
I tried changing the content-type for the response serializer and still fail.
回答1:
Use this method
-(void)callWebserviceToUploadImageWithParams:(NSMutableDictionary *)_params imgParams:(NSMutableDictionary *)_imgParams videoParms:(NSMutableDictionary *)_videoParams action:(NSString *)_action success:(void (^)(id))_success failure:(void (^)(NSError *))_failure
{
if ([[AFNetworkReachabilityManager sharedManager] isReachable]) {
//Here BASE_URL is my URL of web service
NSString *urlString = [BASE_URL stringByAppendingString:_action];
NSLog(@"URL : %@",urlString);
NSMutableURLRequest *urlRequest = [[NSMutableURLRequest alloc] init];
[urlRequest setURL:[NSURL URLWithString:urlString]];
[urlRequest setHTTPMethod:@"POST"];
NSString *boundary = @"---------------------------14737809831466499882746641449";
NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@",boundary];
[urlRequest addValue:contentType forHTTPHeaderField: @"Content-Type"];
// [urlRequest setValue:contentType forHTTPHeaderField:@"Content-type: application/json"]
NSMutableData *body = [NSMutableData data];
[_params enumerateKeysAndObjectsUsingBlock: ^(NSString *key, NSString *object, BOOL *stop) {
[body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"\r\n\r\n",key] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:@"%@",object] dataUsingEncoding:NSUTF8StringEncoding]];
}];
[_imgParams enumerateKeysAndObjectsUsingBlock: ^(NSString *key, NSData *object, BOOL *stop) {
if ([object isKindOfClass:[NSData class]]) {
if (object.length > 0) {
[body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
NSLog(@"Timestamp:%@",TimeStamp);
[body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"; filename=\"%@.jpg\"\r\n",key,TimeStamp] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:@"Content-Type: application/octet-stream\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[NSData dataWithData:object]];
}
}
}];
[_videoParams enumerateKeysAndObjectsUsingBlock: ^(NSString *key, NSData *object, BOOL *stop) {
if (object.length > 0) {
[body appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
NSLog(@"Timestamp:%@",TimeStamp);
[body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"; filename=\"%@.mp4\"\r\n",key,TimeStamp] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[[NSString stringWithFormat:@"Content-Type: application/octet-stream\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];
[body appendData:[NSData dataWithData:object]];
}
}];
[body appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n",boundary] dataUsingEncoding:NSUTF8StringEncoding]];
[urlRequest setHTTPBody:body];
AFHTTPSessionManager* manager = [AFHTTPSessionManager manager];
manager.responseSerializer.acceptableContentTypes = nil;
NSURLSessionDataTask *dataTask = [manager dataTaskWithRequest:urlRequest completionHandler:^(NSURLResponse *response, id responseObject, NSError *error) {
if (error) {
NSLog(@"Error: %@", error);
if( _failure )
{
_failure( error) ;
}
} else {
if( _success )
{
_success( responseObject ) ;
}
}
}];
[dataTask resume];
}
else
{
[Utility showInterNetConnectionMessage];
NSError *error;
if( _failure )
{
_failure( error) ;
}
}
}
If you are not uploading any video or image then give as nil
USE:
#pragma -mark callwebservice for login
-(void)callWebserviceFor_upload_Sticker {
// Check whether Company user login or Individual User login.
[SVProgressHUD setDefaultMaskType:SVProgressHUDMaskTypeClear];
//user_id, user_token, emoji_weburl(optional), emoji_picture(file)
NSMutableDictionary *dict_user_data = [Utility getUserPlistData];
NSMutableDictionary *params = [[NSMutableDictionary alloc]init];
[params setValue:[dict_user_data valueForKey:@"user_id"] forKey:@"user_id"];
[params setValue:[dict_user_data valueForKey:@"user_token"] forKey:@"user_token"];
NSLog(@"%@",params);
NSMutableDictionary *imgParams = [[NSMutableDictionary alloc]init];
[imgParams setValue:UIImageJPEGRepresentation(img_to_upload, 0) forKey:@"emoji_picture"];
void ( ^successed )( id _responseObject ) = ^( id _responseObject )
{
NSLog(@"%@",_responseObject);
//Your logic after success
} ;
void ( ^failure )( NSError* _error ) = ^( NSError* _error ) {
[SVProgressHUD showErrorWithStatus:@"Failed"];
} ;
[[WebServiceHendler sharedManager]callWebserviceToUploadImageWithParams:params imgParams:imgParams videoParms:nil action:UPDATE_EMOJI success:successed failure:failure];
}
来源：https://stackoverflow.com/questions/41233839/afnetworking-3-0-multipart-form-data-for-uploading-image-error