Web API for IOSにフォームデータファイルを追加する方法

Question

Guys私は郵便配達員に送信しようとすると、画像をサーバーに送信しようとしています。しかし、私は私のIOSコードで同じを実装しようとするとき。そこに私は希望の結果を受け取っていません。以下はファイルを追加するためのIOSコードです、残りのヘッダー/ URLパラメータは正常に動作しています。

NSData *postData; 
postData =[[NSString stringWithFormat:@"Content-Disposition: form-data; content=\"%@\"", pBytes] dataUsingEncoding:NSUTF8StringEncoding]; 
[request setHTTPBody:postData]; 
theConnection = [NSURLConnection connectionWithRequest:request delegate:self]; 

ここは、Postmanのスクリーンショット（https://www.dropbox.com/s/r8ar1pr0k4s3qqm/Screen%20Shot%202016-06-23%20at%2010.15.54%20AM.png?dl=0）です。スクリーンショットでは、画像はファイルとして追加されます。郵便配達員と同じ結果を達成するために、コードで何を追加しますか。

ご使用AFNetworkingこのコードを使用している場合は任意のヘルプは

Answer 1

使用このコードが、以下のコードは、私の提案は、上記のある古い形式であると思います新しい回答です。

NSMutableDictionary* _params = [[NSMutableDictionary alloc] init]; 
[_params setObject:[NSString stringWithString:@"1.0"] forKey:[NSString stringWithString:@"ver"]]; 
[_params setObject:[NSString stringWithString:@"en"] forKey:[NSString stringWithString:@"lan"]]; 
[_params setObject:[NSString stringWithFormat:@"%d", userId] forKey:[NSString stringWithString:@"userId"]]; 
[_params setObject:[NSString stringWithFormat:@"%@",title] forKey:[NSString stringWithString:@"title"]]; 

// the boundary string : a random string, that will not repeat in post data, to separate post data fields. 
NSString *BoundaryConstant = [NSString stringWithString:@"----------V2ymHFg03ehbqgZCaKO6jy"]; 

// string constant for the post parameter 'file'. My server uses this name: `file`. Your's may differ 
NSString* FileParamConstant = [NSString stringWithString:@"file"]; 

// the server url to which the image (or the media) is uploaded. Use your server url here 
NSURL* requestURL = [NSURL URLWithString:@""]; 

// create request 
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];          
[request setCachePolicy:NSURLRequestReloadIgnoringLocalCacheData]; 
[request setHTTPShouldHandleCookies:NO]; 
[request setTimeoutInterval:30]; 
[request setHTTPMethod:@"POST"]; 

// set Content-Type in HTTP header 
NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@", BoundaryConstant]; 
[request setValue:contentType forHTTPHeaderField: @"Content-Type"]; 

// post body 
NSMutableData *body = [NSMutableData data]; 

// add params (all params are strings) 
for (NSString *param in _params) { 
    [body appendData:[[NSString stringWithFormat:@"--%@\r\n", BoundaryConstant] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"\r\n\r\n", param] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [body appendData:[[NSString stringWithFormat:@"%@\r\n", [_params objectForKey:param]] dataUsingEncoding:NSUTF8StringEncoding]]; 
} 

// add image data 
NSData *imageData = UIImageJPEGRepresentation(imageToPost, 1.0); 
if (imageData) { 
    [body appendData:[[NSString stringWithFormat:@"--%@\r\n", BoundaryConstant] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\"; filename=\"image.jpg\"\r\n", FileParamConstant] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [body appendData:[[NSString stringWithString:@"Content-Type: image/jpeg\r\n\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; 
    [body appendData:imageData]; 
    [body appendData:[[NSString stringWithFormat:@"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; 
} 

[body appendData:[[NSString stringWithFormat:@"--%@--\r\n", BoundaryConstant] dataUsingEncoding:NSUTF8StringEncoding]]; 

// setting the body of the post to the reqeust 
[request setHTTPBody:body]; 

// set the content-length 
NSString *postLength = [NSString stringWithFormat:@"%d", [body length]]; 
[request setValue:postLength forHTTPHeaderField:@"Content-Length"]; 

// set URL 
[request setURL:requestURL]; 

希望しています

Answer 2

を理解されるであろう、

NSData *data1 = UIImagePNGRepresentation (self.myimageView.image); 

NSMutableDictionary *parameters = [NSMutableDictionary dictionary]; 
[parameters setObject:firstnametf.text forKey:@"FirstName"]; 
[parameters setObject:lastnametf.text forKey:@"LastName"]; 
[parameters setObject:emailtf.text forKey:@"Email"]; 

[parameters setObject:data1 forKey:@"Photo"]; 



AFHTTPSessionManager *manager = [[AFHTTPSessionManager alloc] initWithBaseURL:@"URL"]; 

[manager POST:path parameters:parameters constructingBodyWithBlock:^(id<AFMultipartFormData> formData) { 
         //do not put image inside parameters dictionary as I did, but append it! 

         [formData appendPartWithFileData:data1 name:@"Photo" fileName:@"Image.png" mimeType:@"image/png"]; 

        } success:^(NSURLSessionDataTask *task, id responseObject) 
        { 

         NSLog(@"JSON: %@", responseObject); 
         //here is place for code executed in success case 

        } failure:^(NSURLSessionDataTask *task, NSError *error) { 

         //here is place for code executed in success case 
         UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Error while sending POST" 
                      message:@"Sorry, try again." 
                      delegate:nil 
                    cancelButtonTitle:@"Ok" 
                    otherButtonTitles:nil]; 
         [alertView show]; 

         NSLog(@"Error: %@", [error localizedDescription]); 
        }]; 

は、その有用