当AFNetworking的POST请求2时，cocoa错误3840
我调用这个函数，每次都返回Cocoa Error 3840。 我尝试debugging和修复它，并在请求而不是parsing结果时出错
请求时，我在故障块中发现了这个错误。
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=0x109230960 {NSDebugDescription=JSON text did not start with array or object and option to allow fragments not et.} 2013-11-01 12:09:30.925 MagicBox[87431:70b] The operation couldn't be completed. (Cocoa error 3840.) 这是我的代码在此先感谢。
- (void)loginWithUserName:(NSString *)userName Password:(NSString *)password orFacebook:(NSString *)facebookID withResponseBlock:(ResponseBlock)responseBlock { if (!userName && !facebookID) { NSError *error = [NSError errorWithDomain:@"Missing Parameters" code:400 userInfo:@{ NSLocalizedDescriptionKey : @"Username or FacebookID is required"}]; responseBlock(error, nil); } NSDictionary *params; if (facebookID) { params = @{ @"fb_id": facebookID }; } else { params = @{ @"username": userName, @"password": password }; } AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; NSString *loginURL = [self requestWithPath:@"/api/login"]; [manager POST:loginURL parameters:params constructingBodyWithBlock:nil success:^(AFHTTPRequestOperation *operation, id responseObject) { if (responseBlock) { responseBlock(nil, responseObject); } } failure:^(AFHTTPRequestOperation *operation, NSError *error) { if (responseBlock) { responseBlock(error, nil); } }]; }
我通过添加下面的代码来解决它
manager.responseSerializer = [AFHTTPResponseSerializer serializer];
一直困住同样的问题。
我解决了这个问题：
self.requestSerializer = [AFJSONRequestSerializer serializer];
即AFHTTPRequestOperationManager检查AFHTTPRequestOperationManager是否使用了正确的请求序列化程序。
希望这可以帮到你！
我通过确保返回的数据与Google电子表格XML响应（而不是JSON）的正确序列化解决了这个问题。
manager.responseSerializer = [AFXMLParserResponseSerializer serializer];
我通过添加下面的代码来解决它
manager.requestSerializer = [AFJSONRequestSerializer serializer];