发送带有特定参数的图像？

Question

我发送纯文本没有问题。

例如，我有这样的要求：

func buyWholeSaler(url : String, token:String, manager:String, fio:String,phone:String, sender:String, carrier:String, document:String,shipping_id:String,pay_type:String, shipping_pay:String, amount_nalogi:String, shipping_return:String,money_recipient :String,comment:String, completion: @escaping (JSON)-> Void) {
        let headers: HTTPHeaders = [
            "Authorization": "Bearer \(token)",
            "Accept": "application/json"
        ]

        let parameters: Parameters = [
            "shipping_id" : shipping_id,
            "pay_type": pay_type,
            "manager" : manager,
            "fio" : fio,
            "phone" : phone,
            "sender" : sender,
            "carrier" : carrier,
            "document" : document,
            "shipping_pay": shipping_pay,
            "amount_nalogi": amount_nalogi,
            "shipping_return" :shipping_return,
            "money_recipient" : money_recipient,
            "comment" : comment
        ]
        AF.request(url,method: .post, parameters: parameters, headers:headers).responseJSON { response in
            switch response.result {
            case .success(let value):
                let json = JSON(value)
                completion(json)
            case .failure(let error):
                print(error)
            }
        }
    }

但是如何发送带有这些参数的图片呢？

我有 2 张图片

var image1 = UIImage()
var image2 = UIImage()

如何重写请求以便正确发送？例如：

let parameters: Parameters = [
            "shipping_id" : shipping_id,
            "pay_type": pay_type,
            ...
            "ur_file_pdv": image1,
            "ur_file_er": image1
        ]

我找到了这个请求，但我不明白它是如何工作的：

AF.upload(multipartFormData: { multiPart in
                        for p in parameters {
                            multiPart.append("\(p.value)".data(using: String.Encoding.utf8)!, withName: p.key)
                        }
                        multiPart.append(imageVityagPdv.jpegData(compressionQuality: 0.4)!, withName: "ur_file_pdv", fileName: "ur_file_pdv.jpg", mimeType: "image/jpg")
                        multiPart.append(imageVityag.jpegData(compressionQuality: 0.4)!, withName: "ur_file_er", fileName: "ur_file_er.jpg", mimeType: "image/jpg")
                    }, to: url, method: .post, headers: headers) .uploadProgress(queue: .main, closure: { progress in
                        print("Upload Progress: \(progress.fractionCompleted)")
                    }).responseJSON(completionHandler: { data in
                        print("upload finished: \(data)")
                        let success = json["success"].stringValue
                    }).response { (response) in
                        switch response.result {
                        case .success(let resut):
                            print("upload success result: \(resut!)")
 case .failure(let err):
                            print("upload err: \(err)")
                        }
                    }

似乎正在向服务器上传一些东西，但订单没有发生

Answer 1

您不能将“数据”添加为参数，特别是因为“请求”是为了从服务器检索数据而发出的，并且应该非常小，只需向服务器提供您实际希望从中接收的信息（以文本形式）。要上传内容，您可以使用 POST 请求，您可以使用 AF.upload 在 Alamofire 中执行该请求，如下所示。

“订单未发生”是什么意思？也许你有一些服务器代码，所以我们可以看到问题是什么？可能是它希望参数为 GET，在这种情况下，您可以将它们直接添加到 URL。

func buyWholeSaler(url : String, token: String, manager: String,
    fio: String, phone: String, sender: String, carrier: String,
    document: String, shipping_id: String, pay_type: String,
    shipping_pay: String, amount_nalogi: String,
    shipping_return: String, money_recipient: String, comment:String,
    completion: @escaping (JSON) -> Void) {

    let headers: HTTPHeaders = [
        "Authorization": "Bearer \(token)",
        "Accept": "application/json"
    ]

    let parameters: Parameters = [
        "shipping_id" : shipping_id,
        "pay_type": pay_type,
        "manager" : manager,
        "fio" : fio,
        "phone" : phone,
        "sender" : sender,
        "carrier" : carrier,
        "document" : document,
        "shipping_pay": shipping_pay,
        "amount_nalogi": amount_nalogi,
        "shipping_return" :shipping_return,
        "money_recipient" : money_recipient,
        "comment" : comment
    ]

    AF.upload(multipartFormData: { (multipartFormData) in
        parameters.forEach({ multipartFormData.append("\(p.value)".data(using: .utf8)!, withName: p.key) })
        multipartFormData.append(image1.jpegData(compressionQuality: 0.4)!,
            withName: "ur_file_pdv", fileName: "ur_file_pdv.jpg", mimeType: "image/jpg")
        multipartFormData.append(image2.jpegData(compressionQuality: 0.4)!,
            withName: "ur_file_er", fileName: "ur_file_er.jpg", mimeType: "image/jpg")
    },
    to: url, method: .post, headers : headers).responseJSON { (response) in
        switch response.result {
        case .success(let value): completion(JSON(value))
        case .failure(let error): print(error)
        }
    }
}

Answer 2

   self.uploadMultipart(buildedWith: { (multipartData) in
        multipartData.append(assestPath, withName: "file", fileName: "mp4", mimeType: "")

assest path 是图片的url，应该是本地路径，也可以转成数据形式，但是直接追加路径比较好。