在swift 4中使用alamofire 4中的multipart上传图像和多个参数

Question

我正在尝试使用带有 swift 4 的 alamofire multipart 上传具有多个参数的图像，但我无法成功上传图像，我得到了类似

的响应

{
  "error" : "error uploading file, please retry"
}

这是我在上传按钮事件中调用的函数。

// selectedLogo = (info["UIImagePickerControllerOriginalImage"] as? UIImage)!
let imageData = UIImageJPEGRepresentation(selectedLogo, 1.0)
let parameters: Parameters = ["id": strUserId,
                              "telephone": self.txtTelephoneNumber.text!,
                              "email": self.txtEmail.text!,
                              "notice":self.txtNotices.text!,
                              "status" : userData["status"]]

print(parameters)

Alamofire.upload(multipartFormData: { (multipartFormData) in
    if let data = imageData{
        multipartFormData.append(data, withName: "club_image", fileName: "file.jpg", mimeType: "image/jpg")
    }
    for (key, value) in parameters {
        multipartFormData.append("\(value)".data(using: String.Encoding.utf8)!,withName: key as String)

    }
}, to:"\(self.app.strBaseAPI)updatedata.php")
{ (result) in
    switch result {
    case .success(let upload, _, _):
        upload.uploadProgress(closure: { (progress) in
            //Print progress
            print(progress)
        })
        upload.validate()

        upload.responseJSON { response in
            if response.response?.statusCode == 200
            {
                if response.result.isSuccess == true
                {
                    if let value = response.result.value
                    {
                        self.json = JSON(value)
                        print(self.json)

                        let strStatus : String = self.json["success"].stringValue
                        if strStatus == "true"
                        {
                            Toast(text: strStatus).show()
                        }else{
                            Toast(text: strStatus).show()
                        }
                    }else{
                        Toast(text: "Something wrong").show()
                    }
                }else{
                    Toast(text: "Something wrong").show()
                }
            }else{
                SVProgressHUD.dismiss()
                Toast(text: "Something wrong").show()
            }
        }

    case .failure(let encodingError):
        //print encodingError.description
        print(encodingError.localizedDescription)
    }

当我使用 UIImagePNGRepresentation 以相同的方法转换图像时，只需更改一行

multipartFormData.append(imageData!, withName: "image", fileName: "image.png", mimeType: "image/png")

它会给我这样的

SUCCESS: {
    error = "error data post";
}

请帮帮我！！

Answer 1

没有像image/jpg 这样的MIME 类型。将其更改为image/jpeg。

Answer 2

所以错误来自服务器端，图像的大小限制非常小，这就是它们没有保存的原因。尝试从

更新JPEG图像的压缩

if  let imageData = UIImageJPEGRepresentation(selectedLogo, 1)

到

if  let imageData = UIImageJPEGRepresentation(selectedLogo, 0.6)

希望这会对你有所帮助。