Домен = NSCocoaErrorDomain Код = 3840 «Операция не может быть завершена

Question

Domain=NSCocoaErrorDomain Code=3840 "The operation couldn’t be completed. (Cocoa error 3840.)" (JSON text did not start with array or object and option to allow fragments not set.) UserInfo=0x7fac23c3a250 {NSDebugDescription=JSON text did not start with array or object and option to allow fragments not set.} 

Я использую этот код

NSString *jsonString = [NSString stringWithContentsOfURL:url1 encoding:NSUTF8StringEncoding error:nil]; 
    // NSError *err; 
    NSLog(@"the jsonString==%@",jsonString); 

    NSError *jsonError; 
    NSData *data = [jsonString dataUsingEncoding:NSUTF8StringEncoding]; 

    NSMutableDictionary *jsonResponse = [NSJSONSerialization JSONObjectWithData:data 
                   options:NSJSONReadingMutableContainers 
                    error:&jsonError]; 
    NSLog(@"jjsonError=======================%@",jsonError); 

получая jsonResponse нуль. И у меня есть данные в jsonString и данных. Как решить эту проблему . я использовал эту ссылку, но его не работает Cocoa error 3840 using JSON (iOS)

jsonString я получаю как этот

jsonString ==j==jsonFlickrApi({"sizes":{"canblog":0,"canprint":0,"candownload":0,"size":[{"label":"Square","width":75,"height":75,"source":"https:\/\/farm3.staticflickr.com\/2929\/14103359278_239cffa6c4_s.jpg","url":"https:\/\/www.flickr.com\/photos\/124934434029@N02\/14103359278\/sizes\/sq\/","media":"photo"},{"label":"Large Square","width":"150","height":"150","source":"https:\/\/farm3.staticflickr.com\/2929\/14103359278_239cffa6c4_q.jpg","url":"https:\/\/www.flickr.com\/photos\/124934029@N02\/14103359278\/sizes\/q\/","media":"photo"},{"label":"Thumbnail","width":"100","height":"66","source":"https:\/\/farm3.staticflickr.com\/2929\/14103359278_239cffa6c4_t.jpg","url":"https:\/\/www.flickr.com\/photos\/124934029@N02\/14103359278\/sizes\/t\/","media":"photo"},{"label":"Small","width":"240","height":"159","source":"https:\/\/farm3.staticflickr.com\/2929\/14103359278_239cffa6c4_m.jpg","url":"https:\/\/www.flickr.com\/photos\/12444934029@N02\/14103359278\/sizes\/s\/","media":"photo"},{"label":"Small 320","width":"320","height":213,"source":"https:\/\/farm3.staticflickr.com\/2929\/14103359278_239cffa6c4_n.jpg","url":"https:\/\/www.flickr.com\/photos\/124934029@N02\/14103359278\/sizes\/n\/","media":"photo"},{"label":"Medium","width":"500","height":"332","source":"https:\/\/farm3.staticflickr.com\/2929\/14103359278_239cffa6c4.jpg","url":"https:\/\/www.flickr.com\/photos\/124934029@N02\/14103359278\/sizes\/m\/","media":"photo"},{"label":"Medium 640","width":"640","height":"425","source":"https:\/\/farm3.staticflickr.com\/2929\/14103359278_239cffa6c4_z.jpg","url":"https:\/\/www.flickr.com\/photos\/124934029@N02\/14103359278\/sizes\/z\/","media":"photo"},{"label":"Medium 800","width":"800","height":531,"source":"https:\/\/farm3.staticflickr.com\/2929\/14103359278_239cffa6c4_c.jpg","url":"https:\/\/www.flickr.com\/photos\/124934029@N02\/14103359278\/sizes\/c\/","media":"photo"},{"label":"Large","width":"1024","height":"680","source":"https:\/\/farm3.staticflickr.com\/2929\/14103359278_239cffa6c4_b.jpg","url":"https:\/\/www.flickr.com\/photos\/124934029@N02\/14103359278\/sizes\/l\/","media":"photo"},{"label":"Large 1600","width":"1600","height":1063,"source":"https:\/\/farm3.staticflickr.com\/2929\/14103359278_cce6d96d28_h.jpg","url":"https:\/\/www.flickr.com\/photos\/124934029@N02\/14103359278\/sizes\/h\/","media":"photo"},{"label":"Large 2048","width":"2048","height":1360,"source":"https:\/\/farm3.staticflickr.com\/2929\/14103359278_c6218398b6_k.jpg","url":"https:\/\/www.flickr.com\/photos\/124934029@N02\/14103359278\/sizes\/k\/","media":"photo"}]},"stat":"ok"}) 
2015-01-12 13:12:59.320 jsonsamp[1225:690335] 

Answer 1

вы попробуете этот код, может быть, это работает отлично для вас. Сначала вы проверяете API, используя Advanced REST client.

NSString *post =[[NSString alloc] initWithFormat:@"shop_name=%@&title=%@",shopname,chatType]; 

NSLog(@"PostData: %@",post); 

NSURL *url=[NSURL URLWithString:@"http://localhost/load_tailors"]; 


NSLog(@"%@",url); 

NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES]; 

NSString *postLength = [NSString stringWithFormat:@"%lu", (unsigned long)[postData length]]; 

NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init]; 
[request setURL:url]; 
[request setHTTPMethod:@"POST"]; 
[request setValue:postLength forHTTPHeaderField:@"Content-Length"]; 
[request setValue:@"application/json" forHTTPHeaderField:@"Accept"]; 
[request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"]; 
[request setHTTPBody:postData]; 

//[NSURLRequest setAllowsAnyHTTPSCertificate:YES forHost:[url host]]; 

NSError *error = [[NSError alloc] init]; 
NSHTTPURLResponse *response = nil; 
NSData *urlData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error]; 

NSLog(@"Response code: %ld", (long)[response statusCode]); 


if ([response statusCode] >= 200 && [response statusCode] < 300) 
{ 
    NSString *responseData = [[NSString alloc]initWithData:urlData encoding:NSUTF8StringEncoding]; 
    NSLog(@"Response ==> %@", responseData); 

    NSError *error = nil; 
    jsonData = [NSJSONSerialization 
           JSONObjectWithData:urlData 
           options:NSJSONReadingMutableContainers 
           error:&error]; 
    NSLog(@"%@",jsonData); 

}