我正在使用AFNetworking发布带有一些数据的音频.我得到以下异常.
*** Terminating app due to uncaught exception 'NSinvalidargumentexception',reason: 'Invalid type in JSON write (NSConcreteData)'
我正在使用此代码..
dict=@{@"access_token":[defaults valueForKey:@"TOKEN"],@"email":email,@"prayer":passData}; if ([NSJSONSerialization isValidJSONObject:dict]) { NSLog(@"Proper JSON Object"); } NSError *error; NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dict options:NSJSONWritingPrettyPrinted error:&error]; NSURL *URL = [NSURL URLWithString:url]; NSMutableuRLRequest *request = [NSMutableuRLRequest requestWithURL:URL cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:10]; [request setHTTPMethod:@"POST"]; [request setValue: @"application/json" forHTTPHeaderField:@"Content-Type"]; [request setHTTPBody:jsonData]; AFHTTPRequestOperation *op = [[AFHTTPRequestOperation alloc] initWithRequest:request]; op.responseSerializer = [AFJSONResponseSerializer serializerWithReadingOptions:NSJSONReadingallowFragments]; [op setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation,id responSEObject) {}
我需要以这种格式发布值
{ "access_token" = 2cf0d8a66654fa4f; email = ""; prayer = { audio = <63616666 00010000 64657363 00000000 00000020 40e58880 00000000 696d6134 00000000 00000044 00000040 00000002 00000000 6b756b69 00000000 00000000 66726565 0000000> 98903013 31faae9c bb7b0780 80808080>; "category_id" = ""; description = ""; "expired_date" = "Expiration Date"; "is_audio" = 1; "is_urgent" = 0; "prayer_access_id" = ""; "prayer_type_id" = 1; subject = ""; }; }
我不知道为什么会发生这种情况,我之前用这种格式发布了值,但是当我尝试将音频作为数据发布时,我得到了这个例外.
提前致谢
编辑
我在这里制作数据
NSData *audioFile=[self audioData]; if (audioFile==nil) { [passData setobject:@"" forKey:@"audio"]; [passData setobject:@"0" forKey:@"is_audio"]; }else{ [passData setobject:audioFile forKey:@"audio"]; [passData setobject:@"1" forKey:@"is_audio"]; } -(NSData *)audioData{ NSArray *dirPaths = NSSearchPathForDirectoriesInDomains( NSDocumentDirectory,NSUserDomainMask,YES); Nsstring *docsDir = [dirPaths objectAtIndex:0]; Nsstring *soundFilePath = [docsDir stringByAppendingPathComponent:@"recordTest.caf"]; NSURL *url = [NSURL fileURLWithPath:soundFilePath]; NSData *audioData=[NSData dataWithContentsOfURL:url]; return audioData; }
这就是我插入音频文件
解决方法
问题是你不能把NSData放在JSON中.音频是NSData.正如NSJSONSerialization
documentation所说:
An object that may be converted to JSON must have the following properties:
如果要在JSON中包含NSData,则必须将其转换为字符串.常见的方法是对其进行base64编码(然后在目标中对base64字符串进行解码).