使用Alamofire无法通过服务器上传音频文件

Question

class VoiceRecogViewController: UIViewController, AVAudioPlayerDelegate, AVAudioRecorderDelegate { 


var audioPlayer: AVAudioPlayer? 
var audioRecorder: AVAudioRecorder? 
var error: NSError? 
var soundFileURL: URL? 
var soundFilePath: String = "" 
var data : NSData? 

@IBOutlet weak var startRocordButton: UIButton! 
@IBOutlet weak var stopRecordButton: UIButton! 
@IBOutlet weak var playRecordButton: UIButton! 
@IBOutlet weak var continueButton: UIButton! 

override func viewDidLoad() { 

    super.viewDidLoad() 
    playRecordButton.isEnabled = false 
    stopRecordButton.isEnabled = false 

    let dirPaths = 
     NSSearchPathForDirectoriesInDomains(.documentDirectory, 
              .userDomainMask, true) 

    let docsDir = dirPaths[0] 
    soundFilePath = (docsDir as NSString).appendingPathComponent("sound.wav") 
    soundFileURL = URL(fileURLWithPath: soundFilePath) 

    let recordSettings = [AVEncoderAudioQualityKey: AVAudioQuality.min.rawValue, 
          AVEncoderBitRateKey: 16, 
          AVNumberOfChannelsKey: 2, 
          AVSampleRateKey: 44100.0] as [String : Any] 

    let audioSession = AVAudioSession.sharedInstance() 
    try! audioSession.setCategory(AVAudioSessionCategoryPlayAndRecord, with: []) 
    try! audioSession.setActive(true) 

    if let err = error { 
     print("audioSession error: \(err.localizedDescription)") 
    } 

    do { 
     audioRecorder = try AVAudioRecorder(url: soundFileURL!, 
              settings: recordSettings as [String : AnyObject]) 
    } catch { 
     audioRecorder = nil 
    } 

    audioRecorder?.prepareToRecord() 

    // Do any additional setup after loading the view. 
} 

override func didReceiveMemoryWarning() { 
    super.didReceiveMemoryWarning() 
    // Dispose of any resources that can be recreated. 
} 


@IBAction func startRecord(_ sender: AnyObject) { 
    if audioRecorder?.isRecording == false { 
     playRecordButton.isEnabled = false 
     startRocordButton.isEnabled = false 
     stopRecordButton.isEnabled = true 
     audioRecorder?.record() 
    } 
} 

@IBAction func stopRecord(_ sender: AnyObject) { 
    stopRecordButton.isEnabled = false 
    playRecordButton.isEnabled = true 
    startRocordButton.isEnabled = true 

    if audioRecorder?.isRecording == true { 
     audioRecorder?.stop() 
    } else { 
     audioPlayer?.stop() 
    } 
} 

@IBAction func playRecord(_ sender: AnyObject) { 
    if audioRecorder?.isRecording == false { 
     stopRecordButton.isEnabled = true 
     startRocordButton.isEnabled = false 
    } 

    do { 
     try audioPlayer = AVAudioPlayer(contentsOf: soundFileURL!) 
     audioPlayer?.delegate = self 
     audioPlayer?.prepareToPlay() 
     audioPlayer?.play() 
    } catch { 
     print("audioPlayer error") 
    } 
} 

@IBAction func continueRegist(_ sender: AnyObject) { 

    let headers: HTTPHeaders = ["Authorization": "Token ___(**token**)_____", 
           "Accept": "application/json"] 

    data = NSData (contentsOf: soundFileURL!) 

    let parameters: Parameters = ["from_account_id": "3", 
            "to_account_id": "4", 
            "file": data!, 
           ] 

    let URL = "http://leaofımjpüsmfweüdıpckfw" 

      Alamofire.request(URL, method: .put, parameters: parameters, headers: headers).responseJSON { response in 
       if let data = response.result.value { 
        print(data) 
       } 
      } 
} 
func audioPlayerDidFinishPlaying(_ player: AVAudioPlayer, successfully flag: Bool) { 
    startRocordButton.isEnabled = true 
    stopRecordButton.isEnabled = false 
} 

func audioPlayerDecodeErrorDidOccur(_ player: AVAudioPlayer, error: Error?) { 
    print("Audio Play Decode Error") 
} 

func audioRecorderDidFinishRecording(_ recorder: AVAudioRecorder, successfully flag: Bool) { 
} 

func audioRecorderEncodeErrorDidOccur(_ recorder: AVAudioRecorder, error: Error?) { 
    print("Audio Record Encode Error") 
} 

我在上面分享了我的代码。这里的重点是将音频录制为.wav，在应用程序中播放和continueRegist部分我想用alamofire调用put方法并将音频上传到我们的amazons3服务器。录音和播放音频部分完全正常。问题在于continueRegist方法。调用该方法后，我得到正确的响应，看起来很成功。然后，我从我们的s3服务器的url中检查它。音频看起来像上传，但是当我下载并播放它时，它不起作用。我无法弄清楚问题所在。

此外，当我尝试从邮递员上传文件并提供正确的表格数据信息时，我可以收听我上传到s3服务器的声音。这里可能有什么问题？

下面你可以通过邮递员找到我的要求：

身体：

我忘了选择文件时，我采取的截图，但它只是一个.wav文件。

页眉

请不要犹豫，问我问题那些不能满足你。

希望你能帮助我。

谢谢！

Answer 1

问题出在您的Alamofire请求中：您正在使用JSON中的音频数据构建JSON。但是，您可以在Postman中检查HTTP代码（右上/下传）请求是多部分表单数据。

如何实现多Alamofire： 应该类似于我不知道appendBodyPart陈述的东西。他们取决于你的情况

let audioData: NSData = ...//should be loaded from the file 

Alamofire.Manager.upload(.PUT, 
          URL, 
          headers: headers, 
          multipartFormData: { multipartFormData in 
          multipartFormData.appendBodyPart(data: "3".dataUsingEncoding(NSUTF8StringEncoding), name: "from_account_id") 
          multipartFormData.appendBodyPart(data: "4".dataUsingEncoding(NSUTF8StringEncoding), name: "to_account_id") 
          multipartFormData.appendBodyPart(data: audioData, name: "file", fileName: "file", mimeType: "application/octet-stream") 
          }, 
          encodingCompletion: { encodingResult in 
          switch encodingResult { 

          case .Success(let upload, _, _): 
           upload.responseJSON { response in 

           } 

          case .Failure(let encodingError): 
           // Error while encoding request: 
          } 
})