相关疑难解决方法(0)

我正在做以下内容上传带参数的PNG文件:

    Alamofire.upload(
        multipartFormData: { multipartFormData in
            multipartFormData.append(UIImagePNGRepresentation(tempImage!)!, withName: "file", fileName: "picture.png", mimeType: "image/png")

            // Send parameters
            multipartFormData.append((UserDefaults.standard.value(forKey: Email) as! String).data(using: .utf8)!, withName: "email")
            multipartFormData.append("png".data(using: .utf8)!, withName: "type")

        },
        to: "user/picture",
        encodingCompletion: { encodingResult in
            switch encodingResult {
            case .success(let upload, _, _):
                upload.responseJSON { response in
                    debugPrint("SUCCESS RESPONSE: \(response)")
                }
            case .failure(let encodingError):
                self.removeSpinnerFromView()
                print("ERROR RESPONSE: \(encodingError)")

            }
        }
    )

问题是在我的服务器上我没有看到email和type表单字段.我按照在线发布的示例进行了操作.有什么我应该做的不同吗？

编辑

如果我删除我放置的部分:

multipartFormData.append(UIImagePNGRepresentation(tempImage!)!, withName: "file", fileName: "picture.png", mimeType: "image/png")

然后包括参数.否则,我认为这是Alamofire 4.0.1中的一个错误.

我已完成图像上传,并使用以下方法成功上传到服务器上.

现在我想上传图像及其进度,以便有人告诉我该怎么做？我在各处找到但没有得到正确的解决方案.

图像上传代码没有它的进展:

@IBAction func uploadClick(_ sender: AnyObject) {

    // define parameters
    let parameters = [
        "file_name": "swift_file.jpeg"
    ]

    Alamofire.upload(multipartFormData: { (multipartFormData) in
        multipartFormData.append(UIImageJPEGRepresentation(self.photoImageView.image!, 0.5)!, withName: "photo_path", fileName: "swift_file.jpeg", mimeType: "image/jpeg")
        for (key, value) in parameters {
            multipartFormData.append(value.data(using: String.Encoding.utf8)!, withName: key)
        }
        }, to:"http://server1/upload_img.php")
    { (result) in
        switch result {
        case .success(let upload, _, _):

            upload.responseJSON { response in
                //self.delegate?.showSuccessAlert()
                print(response.request)  // original URL request
                print(response.response) // URL response
                print(response.data)     // server data
                print(response.result)   // result of response serialization
                // …