Question

我正在使用alamofire上传图片。这是注册API，您可以在其中注册个人资料照片（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）;这只是用于测试什么是错误的）

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)
            }
    })
}

但是当我运行此代码时，我遇到了这样的消息：

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

我知道为什么我收到此消息，这是因为响应不是JSON格式。但响应实际上是JSON

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

当我使用URL测试API时，它可以正常工作。

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

.response：

(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)

有任何帮助吗？提前谢谢！

Answer 1

尝试替换成功块： -

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!)


                        })
    }

Answer 2

如果在获得值之前失败或成功，请检查结果。 E.g：

switch response.result {
case .Success(let value):
    print("Value: \(value)")
    break
case .Failure(let error):
    print("Error: \(error)")
    break
}

Alamofire .responseJSON不适用于JSON响应

2 个答案: