Alamofire multipartFormData 使用 [String : Any] 參數

Question

您好，我正在嘗試發布參數和/或圖像。 我的參數是一個帶有字符串、日期、整數、值的 [String : Any]。 當我只發布一個參數時，我使用 URLEncoding.default 編碼。 但是，當我需要同時發布參數和圖像時，我使用 multipartFormData。 我的代碼在下面

if url == ""{

            AF.upload(multipartFormData: { multipartFormData in
                for (key,value) in parameters {
                    multipartFormData.append((value as! String).data(using: .utf8)!, withName: key)
                }

                let jpegData = art!.jpegData(compressionQuality: 1.0)
                multipartFormData.append(Data((jpegData)!), withName: "photo")

            }, to: "\(NetworkManager.rootURL)/api/add/")
                .responseJSON { response in
                    debugPrint(response)
            }
        }else{
            AF.request("\(NetworkManager.rootURL)/api/add/", method: .post, parameters: parameters, encoding: URLEncoding.default, headers: nil).response { (reponse) in
                let status = reponse.response!.statusCode
                if status == 200{
                    completion(200)
                }else{
                    completion(401)
                }
            }
        }

我的問題是，因為我的參數是帶有字符串日期 int 值的 any，所以我得到了一個Could not cast value of type 'Swift.Int' (0x1c3f1f1e8) to 'Swift.String' (0x1c3f21390). 有什么解決方法嗎？ 還是我必須將所有內容更改為字符串...

任何幫助表示贊賞

Answer 1

您需要將任何值作為String路徑才能工作，因為這是將其傳輸到Data的唯一方法，其他一些使用

for (key, value) in parameters {
   multipartFormData.append((value as AnyObject).data(using: String.Encoding.utf8.rawValue)!, withName: key)
}

Answer 2

我已經為使用 Multipart 將帶有參數的圖像上傳到服務器制作了塊功能

//Here strUrl = YOUR WEBSERVICE URL
//postParam = post Request parameter i.e. 
//let postParam : [String : Any] = [first_name : "name"]
//imageArray = image upload array i.e.
//var imageArray : [[String:Data]] = [["image_name" : YOUR IMAGE DATA]]

func postImageRequestWithURL(withUrl strURL: String,withParam postParam: Dictionary<String, Any>,withImages imageArray:[[String:Data]], completion:@escaping (_ isSuccess: Bool, _ response:NSDictionary) -> Void)
{
   let requetURL = strURL

   Alamofire.upload(multipartFormData: { (MultipartFormData) in

    for (imageDic) in imageArray
    {
        for (key,value) in imageDic
        {
            MultipartFormData.append(value, withName:key,fileName: "file.jpg", mimeType: "image/jpg")
        }
    }

    for (key, value) in postParam
    {
        MultipartFormData.append("\(value)".data(using: .utf8)!, withName: key)

      // MultipartFormData.append(value, withName: key)
    }

}, usingThreshold: UInt64.init(), to: requetURL, method: .post, headers: ["Accept": "application/json"]) { (result) in

    switch result {
    case .success(let upload, _, _):

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

        upload.responseJSON { response in

            let desiredString = NSString(data: response.data!, encoding: String.Encoding.utf8.rawValue)

            print("Response ====================")

            print(desiredString!)

            if let json = response.result.value as? NSDictionary
            {
                if response.response?.statusCode == 200
                    || response.response?.statusCode == 201
                    || response.response?.statusCode == 202
                {
                    completion(true,json);
                }
                else
                {
                    completion(false,json);
                }
            }
            else
            {
                completion(false,[:]);
            }
        }

    case .failure(let encodingError):
        print(encodingError)

        completion(false,[:]);
    }

  }
}

您還可以使用此上傳多張圖片我希望這會有所幫助...