Swift 4 - Alamofire 4 上传带参数的图片

Question

我知道有很多关于此的教程或问题。我已经尝试了所有方法，但我没有运气。

我需要从Alamofire 获取上传进度。这是我的代码：

func uploadpp(data1: Array<Any>, data2: Data?){
    guard let url = URL(string: "\(API.storage)/upload/profile/picture?format=json") else {
        return
    }

    let parameters: Parameters = [
        "crop": [],
        "folder_type": "1",
        "folderid": "0",
        "image_byte": data1,
        "image_url": "",
        "partnerid": "\(memberid)",
        "partneruserid": "0",
        "publicip": "",
        "sourceid": "4"
    ]

    let headers: HTTPHeaders = [
        "Authorization": API.basicstring,
        "Content-type": "multipart/form-data"
    ]

    Alamofire.upload(multipartFormData: { (multipartFormData) in
        if let data = data2 {
            multipartFormData.append(data, withName: "image", fileName: "image.jpeg", mimeType: "image/jpeg")
        }

        for (key, value) in parameters {
            multipartFormData.append("\(value)".data(using: String.Encoding.utf8)!, withName: key)
        }
    }, usingThreshold: UInt64.init(), to: url, method: .post, headers: headers) { (result) in
        switch result {
        case .success(let upload, _, _):
            upload.uploadProgress(closure: { (progress) in
                print("proses", progress.fractionCompleted)
            })

            upload.responseJSON { response in
                print("Succesfully uploaded")
                if let err = response.error {
                    print("upload:", err)
                    return
                }

                if let s = response.result.value {
                    print("result:", s)
                    return
                }
            }
        case .failure(let error):
            print("Error in upload: \(error.localizedDescription)")
        }
    }
}

data1 是图像的字节数组。我需要这个，因为我的 API 必须读取这种类型。而data2 是UIImageJPEGRepresentation(img, 0.5) 的结果。

然后当我尝试这个时，它打印了Successfully uploaded，但随后给了我错误：

responseSerializationFailed(reason: Alamofire.AFError.ResponseSerializationFailureReason.jsonSerializationFailed(error: Error Domain=NSCocoaErrorDomain Code=3840 "Invalid value around character 3." UserInfo={NSDebugDescription=Invalid value around character 3.}))

据我所知，当您在 url、参数或标题上出错时会出现此错误（请使用 CMIIW）。

但我已尝试将其发送给 Alamofire.request，所以这是我的另一个代码：

func uploadpp(data: Array<Any>){
    guard let url = URL(string: "\(API.storage)/upload/profile/picture?format=json") else {
        return
    }

    let parameters: Parameters = [
        "crop": [],
        "folder_type": "1",
        "folderid": "0",
        "image_byte": data,
        "image_url": "",
        "partnerid": "\(memberid)",
        "partneruserid": "0",
        "publicip": "",
        "sourceid": "4"
    ]

    let headers: HTTPHeaders = [
        "Authorization": API.basicstring,
        "Accept": "application/json"
    ]

    let req = Alamofire.request(url, method: .post, parameters: parameters, encoding: JSONEncoding.default, headers: headers)
    req.downloadProgress { progress in
        print("lalala", Float(req.progress.fractionCompleted), progress.completedUnitCount)
    }

    req.responseJSON { response in
        if response.result.isSuccess {
            _ = self.getdata(json: JSON(response.result.value!))
            print(response.result.value!)
        }
        else {
            print("upload:", response.result.error!)
        }
    }
}

这是成功的，但没有给我进展。它只是给出了“1.0”。

也许我对Alamofire.request 和Alamofire.upload 的使用感到困惑，或者这一切。所以请有人帮我解决这个问题。

提前致谢。

Answer 1

你可以使用MultipartFormData来解决这个问题，试试这个

let parameters = [
            "station_id" :        "1000",
            "title":      "Murat Akdeniz",
            "body":        "xxxxxx"]

let imgData = UIImageJPEGRepresentation(UIImage(named: "1.png")!,1)



    Alamofire.upload(
        multipartFormData: { MultipartFormData in
        //    multipartFormData.append(imageData, withName: "user", fileName: "user.jpg", mimeType: "image/jpeg")

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

        MultipartFormData.append(UIImageJPEGRepresentation(UIImage(named: "1.png")!, 1)!, withName: "photos[1]", fileName: "swift_file.jpeg", mimeType: "image/jpeg")
        MultipartFormData.append(UIImageJPEGRepresentation(UIImage(named: "1.png")!, 1)!, withName: "photos[2]", fileName: "swift_file.jpeg", mimeType: "image/jpeg")


    }, to: "http://url") { (result) in

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

            upload.responseJSON { response in
                print(response.result.value)
            }

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


    }