Swift 3 Alamofire 4使用参数上传图像数组 [英] Swift 3 Alamofire 4 Upload array of images with parameters

问题描述

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.

I'm trying to upload an array of pictures along with some parameters using Alamofire 4 and Swift 3.

参数似乎起作用，因为更新已完成，但是图像未到达服务器

The parameters seem to work because the update is done, but the images don't get to the server

在邮递员中，我可以毫无问题地做到这一点:

In Postman I can do this fine with no problem:

邮递员请求示例

到目前为止，这是我的代码:

This is my code so far:

    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)
            }
    }
    )

我做错什么了吗?

请帮助.

推荐答案

所以错误出在服务器端，图像的大小限制非常小，这就是为什么它们没有保存的原因.我从

So the error was from the server side, that had a very small size limit for images and that's why they weren't saving. I updated the compression for the JPEG images from

if  let imageData = UIImageJPEGRepresentation(image, 1)

到

if  let imageData = UIImageJPEGRepresentation(image, 0.6)

现在工作正常.

感谢@Sneak提供的链接.

Thank you @Sneak for your links.

这篇关于Swift 3 Alamofire 4使用参数上传图像数组的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！