ios - 使用 Alamofire 将图像上传到服务器不起作用

Question

我想通过 API 调用将图像从图库发送到服务器。该图像必须作为参数传递。为了将图像作为参数传递，我尝试像这样获取图像的 url，但它没有给出正确的 url..

var selectedImage : UIImage = image
let imageData: NSData = UIImagePNGRepresentation(selectedImage)! as NSData
let imageStr = imageData.base64EncodedString(options:.endLineWithCarriageReturn)
imageArray.append(image)

我也尝试像这样上传图像......

        for img in imageArray {

            let url = "http://myApp..com/a/images_upload"
            let headers = [ "Content-Type":"application/x-www-form-urlencoded"]

            let URL = try! URLRequest(url: url, method: .post, headers: headers)
            let parameters =
                [
                    "access_token": accessToken
                    "image": img
                    ] as [String : Any]


            let imgData = UIImageJPEGRepresentation(img, 0.2)!

            Alamofire.upload(multipartFormData: { (multipartFormData) in
                multipartFormData.append(imgData, withName: "image",fileName: "file.jpg", mimeType: "file")
                for (key, value) in parameters {
                    multipartFormData.append((value as AnyObject).data(using: String.Encoding.utf8.rawValue)!, withName: key)
                }
            }, with: URL) { (result) in
                switch result {
                case .success(let upload, _, _):

                    upload.uploadProgress(closure: { (progress) in
                        print("Upload Progress: \(progress.fractionCompleted)")
                    })

                    upload.responseJSON { response in
                        print(response.result.value)
                        if let value = response.result.value {                                
                            print("IMG UPLOADED!!!")
                        }
                    }
                    case .failure(let encodingError):
                    print(“ERROR”)
}}}

但这也会崩溃。我已经遇到这个问题有一段时间了...无法弄清楚确切的解决方案是什么...希望有人可以提供帮助...:)也确实经历了很多类似的问题。但找不到解决办法，直到...

编辑:我的参数是:

let Parameters =
                    [
                        "access_token": commonVarForAccessToken,
                        "seller_id": idForNewOldUser, 
                        "product_id": self.productId,
                        "is_default": "1",
                        "sequence": 1,
                        "image": self.localPath
                        ] as [String : Any]

Answer 1

Almofire 与图像:-

Alamofire.upload(multipartFormData: { (multipartFormData) in
            print(parameters)
            if Array(parameters.keys).contains(Keys.Image) {
            multipartFormData.append(UIImageJPEGRepresentation((parameters)[Keys.Image] as! UIImage, 1)!, withName: "image", fileName: "swift_file.jpeg", mimeType: "image/jpeg")
            }
            for (key, value) in parameters {
                print(key,value)
                if key != Keys.Image{
                multipartFormData.append((value as AnyObject).data(using: String.Encoding.utf8.rawValue)!, withName: key)
                }
            }
        }, to:url)
        { (result) in
            switch result {
            case .success(let upload, _, _):
                upload.uploadProgress(closure: { (progress) in
                    //Print progress
                })
                upload.responseJSON { response in
                    print(response.result)
                    self.getValidDict(result: response.result, completion: { (dict, error) in
                        var dict = dict
                        print(dict!)
                        print(parameters)
                        if dict == nil {
                            dict = NSDictionary.init(dictionary:
                                [kResultMessageKey: error?.localizedDescription ?? "Some error has been occured",
                                 kResultStatusKey: false])
                        }
                           Completion(true,dict![Keys.result]! as AnyObject)
                    })
               }
            case .failure(let encodingError):
                //print(encodingError.description)
                Completion(false,encodingError.localizedDescription as AnyObject)
                break
            }
        }