錯誤域= NSCocoaErrorDomain代碼= 3840「的操作不能使用AFNetworking

Question

我使用AFNetworking庫使用POST方法來發布服務器上的數據完成。

以下是我的代碼

- (void) callLoginAPI:(NSDictionary *)dictProfile{ 
    // 1 
    NSDictionary *params = [NSDictionary dictionaryWithObjectsAndKeys:[dictProfile valueForKey:@"name"], @"username", 
                    [dictProfile valueForKey:@"first_name"],@"first_name", 
                    [dictProfile valueForKey:@"last_name"],@"last_name", 
                    [dictProfile valueForKey:@"email"],@"email", 
                    [dictProfile valueForKey:@"birthday"],@"dob", 
                    [dictProfile valueForKey:@"gender"],@"gender", 
                    [[dictProfile valueForKey:@"location"] valueForKey:@"name"],@"location", 
                    [dictProfile valueForKey:@"timezone"],@"timezone", 
                    @"",@"language", 
                    [NSString stringWithFormat:@"http://graph.facebook.com/%@/picture?type=large",[dictProfile valueForKey:@"id"]],@"profile_pic_url", 
                    @"",@"cover_pic_url",nil]; 



    AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; 
    manager.requestSerializer = [AFJSONRequestSerializer serializer]; 



    [manager POST:@"http://10.1.81.35:8000/api/login/" parameters:params success:^(AFHTTPRequestOperation *operation, id responseObject) { 
     NSLog(@"JSON: %@", responseObject); 
    } failure:^(AFHTTPRequestOperation *operation, NSError *error) { 
     NSLog(@"Error: %@", error); 
    }]; 
} 

但我得到了響應

Error 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=0x797f2620 {NSDebugDescription=JSON text did not start with array or object and option to allow fragments not set.} 

我不明白什麼是代碼中的問題下面的錯誤。

Answer 1

問題來自響應分析。 您正在嘗試反序列化一個JSON響應（它必須包含在NSArray或NSDictionary中），但是您的響應不屬於上述情況（很可能是簡單的字符串）。

此外，嘗試設置「允許片段」到響應串行器。

AFJSONResponseSerializer *responseSerializer = [AFJSONResponseSerializer serializerWithReadingOptions:NSJSONReadingAllowFragments]; 

Answer 2

可能是您需要身份驗證才能訪問JSON響應。這樣的設置身份驗證：

[manager.requestSerializer setAuthorizationHeaderFieldWithUsername:@"XYZ" password:@"xyzzzz"]; 

試試這個：而不是

AFJSONResponseSerializer *responseSerializer = [AFJSONResponseSerializer serializerWithReadingOptions:NSJSONReadingAllowFragments]; 
[self setResponseSerializer:responseSerializer]; 

：

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; 
manager.requestSerializer = [AFJSONRequestSerializer serializer];