Swift 3 Alamofire 4 上传带参数的图片数组

Question

我正在尝试使用 Alamofire 4 和 Swift 3 上传一系列图片以及一些参数。

参数似乎有效，因为更新已完成，但图像未到达服务器

在 Postman 中我可以毫无问题地做到这一点：

Postman request sample

到目前为止，这是我的代码：

    let parameters = [
        "service_request_id" : servicesID,
        "status_id" : "4",
    ]
    Alamofire.upload(
        multipartFormData: { multipartFormData in
            
            for (key,value) in parameters {
                if let value = value as? String {
                    multipartFormData.append(value.data(using: String.Encoding.utf8)!, withName: key)
                }
            }
            
            for (image) in self.imagesArray {
                if  let imageData = UIImageJPEGRepresentation(image, 1) {
                    multipartFormData.append(imageData, withName: "image", fileName: "image.jpeg", mimeType: "image/jpeg")
                }
            }
    },
        to: ConnectionWS.UpdateServicesURL,
        method: .put,
        encodingCompletion: { encodingResult in
            switch encodingResult {
            case .success(let upload, _, _):
                
                upload.uploadProgress(closure: { (progress) in
                    print(progress)
                })
                
                upload.responseJSON { response in
                    
                    // If the request to get activities is succesfull, store them
                    if response.result.isSuccess{
                        print(response.debugDescription)
                        alert.dismiss(animated: true, completion:
                            {
                                self.dismiss(animated: true, completion:
                                    {
                                        self.delegate?.statusChanged(IsFinish: false)
                                })
                                
                        })
                        
                        // Else throw an error
                    } else {
                        
                        
                        var errorMessage = "ERROR MESSAGE: "
                        if let data = response.data {
                            // Print message
                            let responseJSON = JSON(data: data)
                            if let message: String = responseJSON["error"]["message"].string {
                                if !message.isEmpty {
                                    errorMessage += message
                                }
                            }
                        }
                        print(errorMessage) //Contains General error message or specific.
                        print(response.debugDescription)
                    }
                    
                    alert.dismiss(animated: true, completion:
                        {
                            self.dismiss(animated: true, completion:nil)
                            
                    })
                }
            case .failure(let encodingError):
                print("FALLE ------------")
                print(encodingError)
            }
    }
    )

我是不是做错了什么？

请帮忙。

Answer 1

所以错误来自服务器端，它对图像的大小限制非常小，这就是它们没有保存的原因。我更新了来自

的 JPEG 图像的压缩

if  let imageData = UIImageJPEGRepresentation(image, 1)

至

if  let imageData = UIImageJPEGRepresentation(image, 0.6)

现在一切正常。

感谢@Sneak 提供的链接。

Answer 2

for (key,value) in parameters {
                if let value = value as? String {
                    multipartFormData.append(value.data(using: String.Encoding.utf8)!, withName: key)
                }
            }

            for (image) in self.imagesArray {
                if  let imageData = UIImageJPEGRepresentation(image, 1) {
                    multipartFormData.append(imageData, withName: "image", fileName: "image.jpeg", mimeType: "image/jpeg")
                }
            }

//change this code to below 

for (key,value) in parameters {
                if let value = value as? String {
                    if value == "image" {
                        multipartFormData.append(imageData, withName: "image", fileName: "image.jpeg", mimeType: "image/jpeg")
                    } else {
                        multipartFormData.append(value.data(using: String.Encoding.utf8)!, withName: key)

                    }
                }
            }

Swift 3 Alamofire 4 上传带参数的图片数组

Swift 3 Alamofire 4 Upload array of images with parameters

multipartform-data

ios

swift

alamofire

swift3