ios - 如何使用 Alamofire multipart 在参数中发送数组

Question

我正在使用 Alamofire 将图像和文件上传到服务器。但是我在发送带有图像参数的数组时遇到了问题。但是当我在参数中发送一个数组时，它会将数组转换为 JSON 字符串。但我想在参数中发送一个数组，而不是 JSON 字符串。我搜索了很多，但没有找到任何解决方案。所以请告诉我我的代码有什么问题。我正在使用以下代码:

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)
                   }
            }

Answer 1

您需要将图像参数与其他请求参数一起传递。在下面的代码中像这样传递数组参数:

Alamofire.upload(
            multipartFormData: { multipartFormData in
                // Pass your image parameter in imgObj
                if  let imageData = UIImageJPEGRepresentation(imgObj, 1) {                        
                    multipartFormData.append(UIImagePNGRepresentation(imgObj)!, withName: "profile_image", fileName: "THDC", mimeType: "image/png")
                }
                // Send other request parameters
                for (key, value) in yourArray {
                    multipartFormData.append((value as! String).data(using: .utf8)!, withName: key)
                }
        },to: YourURL,headers:[:],
          encodingCompletion: { encodingResult in

            switch encodingResult {
            case .success(let upload, _, _):
                upload.responseJSON { response in
                    SVProgressHUD.dismiss()
                    debugPrint("SUCCESS RESPONSE: \(response)")

                    if let dicObj = response.result.value as? NSDictionary {
                        print(dicObj)

                        }
                }
            case .failure(let encodingError):
                SVProgressHUD.dismiss()
                print("ERROR RESPONSE: \(encodingError)")
            }
        }
        )