ios - Alamofire .responseJSON 不适用于 JSON 响应

Question

我正在使用 alamofire 上传图片。 这是注册 API，您可以在其中使用个人资料照片进行注册(这是我必须上传的内容)

所以我的代码是这样的(我将用另一个代码替换 print(JSON)；这只是为了测试哪里出了问题)

func makeUploadRequest(url: String?) {

    let imageData = NSData(data: UIImageJPEGRepresentation(self.userImage.image!, 1)!)

    Alamofire.upload(.POST, url!, headers: ["Content-Type":"application/json"], multipartFormData: { multipartFormData in
        multipartFormData.appendBodyPart(data: imageData, name: "image_file_1")
        }, encodingCompletion: {
            encodingResult in

            switch encodingResult {
            case .Success(let upload, _, _):
                upload.responseJSON { (JSON) in
                    print(JSON)
                }

            case .Failure(let encodingError):
                //Show Alert in UI
                print(encodingError)
            }
    })
}

但是当我运行这段代码时，我遇到了这条消息:

FAILURE: Error Domain=NSCocoaErrorDomain Code=3840 "Invalid value around
character 0." UserInfo={NSDebugDescription=Invalid value around character 0.}

我知道为什么会收到此消息，因为响应不是 JSON 格式。 但响应实际上是 JSON

{
    result: "success",
    msg: "",
    data: {...}
}

当我使用 URL 测试 API 时，它工作正常。

当我使用 .responseString 而不是 .responseJSON 时:它说了一些关于 ASP.NET 的事情

.响应:

(Optional(<NSMutableURLRequest: 0x7f8353217d50> { URL: url }),
 Optional(<NSHTTPURLResponse: 0x7f8353099040> { URL: url }
{ status code: 500, headers {
"Cache-Control" = private;
"Content-Length" = 5136;
"Content-Type" = "text/html; charset=utf-8";
Date = "Tue, 26 Apr 2016 06:09:03 GMT";
Server = "Microsoft-IIS/7.5";
"X-AspNet-Version" = "2.0.50727";
"X-Powered-By" = "ASP.NET";
} }), Optional(<3c68746d ... 2e2d2d3e>), nil)

有什么帮助吗？提前致谢!

Answer 1

尝试替换 Success block :-

case .Success(let upload, _, _):
                upload.responseJSON { response in
                    debugPrint(response)
                    AppHelper.hideLoadingSpinner()
                    if response.result.value is NSNull
                    {
                        print("Response nil")
                    }
                    else
                    {
                        if let JSON = response.result.value {
                            var mydict = NSMutableDictionary()
                            mydict = JSON as! NSMutableDictionary

                            if (self.delegate != nil){
                                print("response:--------------------\n %@",mydict)
                            }
                        }
                        else
                        {
                            print("response not converted to JSON")
                        }

                    }
                    upload.response(completionHandler: { (request, response, data, error) -> Void in

                            NSLog("upload.response : data : %@", String(data: data!, encoding: NSUTF8StringEncoding)!)
                            NSLog("upload.response : response : %@", response!)


                        })
    }