Swift에서 JSON 쓰기에 잘못된 최상위 유형이 있습니다.

Question

AFNetworking을 사용하여 PUT을 수행하려고합니다. 경쟁에서 참가자의 배열을 보낼 필요가 있지만 "JSON에서 유효하지 않은 최상위 형식을 신속하게 작성"오류가 나타납니다. 내가 생성하는 JSON은 완벽합니다. REST Client를 사용하면 모든 것이 작동합니다.

*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** +[NSJSONSerialization dataWithJSONObject:options:error:]: Invalid top-level type in JSON write' 
*** First throw call stack: 
(
0 CoreFoundation      0x0000000103b5df35 __exceptionPreprocess + 165 
1 libobjc.A.dylib      0x00000001037f6bb7 objc_exception_throw + 45 
2 CoreFoundation      0x0000000103b5de6d +[NSException raise:format:] + 205 
3 Foundation       0x000000010349b0ea +[NSJSONSerialization dataWithJSONObject:options:error:] + 264 
4 MLB         0x00000001031cb23c -[AFJSONRequestSerializer requestBySerializingRequest:withParameters:error:] + 1164 
5 MLB         0x00000001031c13bd -[AFHTTPRequestSerializer requestWithMethod:URLString:parameters:error:] + 1869 
6 MLB         0x00000001031e6d14 -[AFHTTPRequestOperationManager PUT:parameters:success:failure:] + 388 
7 MLB         0x000000010317acf0 _TFC3MLB12UsersManager9sendUsersfS0_FFGSqCSo7NSError_T_T_ + 8656 
8 MLB         0x0000000103166426 _TFC3MLB22MainMenuViewController9alertViewfS0_FTCSo11UIAlertView20clickedButtonAtIndexSi_T_ + 630 
9 MLB         0x0000000103166602 _TToFC3MLB22MainMenuViewController9alertViewfS0_FTCSo11UIAlertView20clickedButtonAtIndexSi_T_ + 66 
10 UIKit        0x00000001046773e0 -[UIAlertView _prepareToDismissForTappedIndex:] + 161 
11 UIKit        0x0000000104676ede __35-[UIAlertView _prepareAlertActions]_block_invoke50 + 43 
12 UIKit        0x0000000104670464 -[UIAlertController _dismissAnimated:triggeringAction:triggeredByPopoverDimmingView:] + 89 
13 UIKit        0x00000001047c6540 _UIGestureRecognizerUpdate + 9487 
14 UIKit        0x000000010445eff6 -[UIWindow _sendGesturesForEvent:] + 1041 
15 UIKit        0x000000010445fc23 -[UIWindow sendEvent:] + 667 
16 UIKit        0x000000010442c9b1 -[UIApplication sendEvent:] + 246 
17 UIKit        0x0000000104439a7d _UIApplicationHandleEventFromQueueEvent + 17370 
18 UIKit        0x0000000104415103 _UIApplicationHandleEventQueue + 1961 
19 CoreFoundation      0x0000000103a93551 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17 
20 CoreFoundation      0x0000000103a8941d __CFRunLoopDoSources0 + 269 
21 CoreFoundation      0x0000000103a88a54 __CFRunLoopRun + 868 
22 CoreFoundation      0x0000000103a88486 CFRunLoopRunSpecific + 470 
23 GraphicsServices     0x00000001084ca9f0 GSEventRunModal + 161 
24 UIKit        0x0000000104418420 UIApplicationMain + 1282 
25 MLB         0x000000010319f84e top_level_code + 78 
26 MLB         0x000000010319f88a main + 42 
27 libdyld.dylib      0x000000010679c145 start + 1 
) 
libc++abi.dylib: terminating with uncaught exception of type NSException 

I : 나는 응용 프로그램을 실행하고 요청을 보내는 경우

func createDictionaryOfParticipations() -> NSArray { 
    var dict: NSMutableDictionary = NSMutableDictionary() 
    var participants: NSMutableArray = NSMutableArray() 
    var savedParticipants: [User] = self.getUsers() as [User] 
    for participant: User in savedParticipants { 
     var participantDict: NSMutableDictionary = NSMutableDictionary() 
     participantDict.setValue(participant.name, forKey: kNameKey) 
     participantDict.setValue(participant.firstSurname, forKey: kFirstSurnameKey) 
     participantDict.setValue(participant.secondSurname, forKey: kSecondSurnameKey) 
     participantDict.setValue(participant.dni, forKey: kDniKey) 
     participantDict.setValue(participant.address, forKey: kAddressKey) 
     participantDict.setValue(participant.postalCode, forKey: kPostalCodeKey) 
     participantDict.setValue(participant.city, forKey: kCityKey) 
     participantDict.setValue(participant.province, forKey: kProvinceKey) 
     participantDict.setValue(participant.phone, forKey: kPhoneKey) 
     participantDict.setValue(participant.email, forKey: kEmailKey) 
     participantDict.setValue(participant.code, forKey: kCodeKey) 
     participantDict.setValue(participant.prize, forKey: kPrizeKey) 
     participants.addObject(participantDict) 
    } 
    return participants 
} 

, 나는이 오류를 얻을 : I가 된 JSONObject를 만들어 내

func sendUsers(onComplete: (NSError?) -> Void) { 
    var error: NSError? 
    var jsonData: NSData = NSJSONSerialization.dataWithJSONObject(self.createDictionaryOfParticipations(), options: NSJSONWritingOptions.allZeros, error: &error)! 
    var jsonString: String = NSString(data: jsonData, encoding: NSUTF8StringEncoding)! 
    println("Json: \(jsonString)") 
    if self.requestManager == nil { 
     self.requestManager = AFHTTPRequestOperationManager(); 
    } 
    self.requestManager?.responseSerializer = AFJSONResponseSerializer(); 
    let requestSerializer = AFJSONRequestSerializer() 
    self.requestManager?.requestSerializer = requestSerializer; 
    self.requestManager?.requestSerializer.setValue("application/json", forHTTPHeaderField: "Content-Type"); 
    self.requestManager?.PUT(kParticipantsUrl, parameters: jsonString, success: { (operation: AFHTTPRequestOperation!, object: AnyObject!) -> Void in 
     self.persistUsers([]) 
     onComplete(nil) 
     }, failure: { (operation: AFHTTPRequestOperation!, error: NSError!) -> Void in 
      onComplete(error) 
    }) 
} 

및 방법 : 여기 내 코드입니다 어디에 문제가 있는지 모르겠다 ... 내가 JSON에 넣은 속성은 NSObject이고 JSON에 넣은 모든 필드는 String (String 유형, NSString이 아님)이고 NSString을 사용하려고했지만 여전히 오류가 발생합니다. . 어떤 아이디어? Thx

Answer 1

직접 JSON 직렬화를 수행하고 AFN에 다시 요청하므로 NSString을 전달하고 JSON에 직렬화하도록 요청하면 작동하지 않습니다.

당신은 NSArray 대신 createDictionaryOfParticipations에서 반환 통과 일을해야한다 :

self.requestManager?.PUT(kParticipantsUrl, parameters: self.createDictionaryOfParticipations(), success:...