如何使用Alamofire Multipart在参数中发送数组 [英] How to send array in params using Alamofire multipart

问题描述

我正在使用Alamofire将图像和文件上传到服务器.但是我面临着在图像中发送参数数组的问题.但是，当我以参数形式发送数组时，它将数组转换为JSON字符串.但是我想发送一个参数数组，而不是JSON字符串.我已经搜索了很多，没有找到任何解决方案.因此，请告诉我我的代码有什么问题.我正在使用以下代码:

I am using Alamofire for uploading image and file to the server. But I am facing issue to send an array in parameters with the image. But when I send an array in params it converts the array in JSON string. But I want to send an array in params, not JSON string. I have searched a lot and did not find any solution. So please tell me what's wrong in my code. I am using below code:

let params = ["id":"112","arrayParam":["1232","12344","14325"]]

    let url = www.khxjjhdfsj.com/hsdgs
            let headers: HTTPHeaders = [
                /* "Authorization": "your_access_token",  in case you need authorization header */
                "Content-type": "multipart/form-data"
            ]
            Alamofire.upload(multipartFormData: { (multipartFormData) in
                for (key, value) in params
                {
                     multipartFormData.append("\(value)".data(using: String.Encoding.utf8)!, withName: key as String)
                }
                if let data = imageData
                {
                    multipartFormData.append(data, withName: "file", fileName: fileName, mimeType: "image/png")
                }
                if let data = pdfData
                {
                    multipartFormData.append(data, withName: "file", fileName: fileName, mimeType:"application/pdf")
                }
            }, usingThreshold: UInt64.init(), to: url, method: .post, headers: headers) { (result) in
                switch result{
                case .success(let upload, _, _):
                    upload.responseJSON { response in
                        print("Succesfully uploaded")
                        if let err = response.error
                        {
                            onError?(err)

                            return
                        }



                    }
                case .failure(let error):
                    print("Error in upload: \(error.localizedDescription)")
                    onError?(error)
                   }
            }

推荐答案

您需要在需要的同一键上添加包含多部分数据的数组，就像在代码中一样，您只需要更改给定的代码行即可:

You need to append array with multipart data on the same key required, like in your code you need to change only given line of code:

  for (key, value) in params
        {
             // check the key on which key array is coming
            if key == "arrayParam" {

               let arrData =  try! JSONSerialization.data(withJSONObject: value, options: .prettyPrinted)
                multipartFormData.append(arrData, withName: key as String)
            }
            else {
                multipartFormData.append("\(value)".data(using: String.Encoding.utf8)!, withName: key as String)
            }

        }

其他地方都一样.

这篇关于如何使用Alamofire Multipart在参数中发送数组的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！