对成员"upload(_：to：method：headers：interceptor：)"的不明确引用

Question

我正在使用Alamofire在按下按钮时上传图像，但它在

AF.upload(multipartFormData: { 多部分表单数据行方法

(注：Alamofire.upload在Alamofire 5.0更新后改为AF.upload(

@IBAction func btnUploadImage(_ sender: UIButton) {
    let uploadDict = ["user_id":getUserId] as [String:String]
    AF.upload(multipartFormData: { MultipartFormData in
                let image :Data = UIImageJPEGRepresentation(self.uploadImg.image!, 1.0)!
                MultipartFormData.append(image, withName: "image" , fileName: "image.jpeg" , mimeType: "image/jpeg")
                for(key,value) in uploadDict{
                    MultipartFormData.append(value.data(using: String.Encoding.utf8)!, withName: key)}
            }, to: "http://XXXXXXXXXXXXXXXX/uploadImage", encodingCompletion: {
                EncodingResult in
                switch EncodingResult{
                case .success(let upload, _, _):
                    upload.responseJSON { response in
                        debugPrint("SUCCESS RESPONSE: (response)")
                    }
                case .failure(let encodingError):
                    print("ERROR RESPONSE: (encodingError)")
                }        })

此代码的视图控制器

import UIKit
import Alamofire
class updateVC: UIViewController, UIImagePickerControllerDelegate,UINavigationControllerDelegate {
//MARK:- OUTLETS
@IBOutlet weak var tFeditName: UITextField!
@IBOutlet weak var tFusername: UITextField!
@IBOutlet weak var tFemail: UITextField!
@IBOutlet weak var uploadImg: UIImageView!
@IBOutlet weak var tVeditAddress: UITextView!

//MARK:- DECLARATIONS
var imagePicker = UIImagePickerController()
var editName = String()
var editUserName = String()
var editEmail = String()
var editImage = UIImage()
var editAddress = String()
var getUserId = String()
//MARK:- LIFE CYCLE
override func viewDidLoad() {
    super.viewDidLoad()
    imagePicker.delegate = self
    tFeditName.text = editName
    tFusername.text = editUserName
    tFemail.text = editEmail
    uploadImg.image = editImage
    tVeditAddress.text = editAddress
}
//MARK:- CUSTOM FUNCTIONS
func postJSON() {
    let param = ["fullname":tFeditName.text!,"username":tFusername.text!,"email":tFemail.text!,"address":tVeditAddress.text!,"user_id":getUserId] as NSDictionary

    AF.request("http://XXXXXXXXXXXXXXXXXXXX/updatedetails", method: .post, parameters: param as? Parameters, encoding: URLEncoding.default).responseJSON { response in
        switch response.result{
        case .success(let json):
            print(json)
            DispatchQueue.main.async {
                print(param)
            }
        case.failure(let Error):
            print(Error)
        }
    }
}
//ImageViewPicker
func openCamera()
{
    if UIImagePickerController.isSourceTypeAvailable(UIImagePickerController.SourceType.camera) {
        let imagePicker = UIImagePickerController()
        imagePicker.delegate = self
        imagePicker.sourceType = UIImagePickerController.SourceType.camera
        imagePicker.allowsEditing = false
        self.present(imagePicker, animated: true, completion: nil)
    }
    else
    {
        let alert  = UIAlertController(title: "Warning", message: "You don't have camera", preferredStyle: .alert)
        alert.addAction(UIAlertAction(title: "OK", style: .default, handler: nil))
        self.present(alert, animated: true, completion: nil)
    }
}
func openGallery()
{
    if UIImagePickerController.isSourceTypeAvailable(UIImagePickerController.SourceType.photoLibrary){
        let imagePicker = UIImagePickerController()
        imagePicker.delegate = self
        imagePicker.allowsEditing = true
        imagePicker.sourceType = UIImagePickerController.SourceType.photoLibrary
        self.present(imagePicker, animated: true, completion: nil)
    }
    else
    {
        let alert  = UIAlertController(title: "Warning", message: "You don't have permission to access gallery.", preferredStyle: .alert)
        alert.addAction(UIAlertAction(title: "OK", style: .default, handler: nil))
        self.present(alert, animated: true, completion: nil)
    }
}
internal func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
    if let pickedImage = info[UIImagePickerController.InfoKey.originalImage] as? UIImage {
        uploadImg.image = pickedImage
    }
    picker.dismiss(animated: true, completion: nil)
}

//MARK:- ACTIONS
@IBAction func btnSelectImage(_ sender: UIButton) {
    let alert = UIAlertController(title: "Choose Image", message: nil, preferredStyle: .actionSheet)
    alert.addAction(UIAlertAction(title: "Camera", style: .default, handler: { _ in
        self.openCamera()
    }))
    alert.addAction(UIAlertAction(title: "Gallery", style: .default, handler: { _ in
        self.openGallery()
    }))
    alert.addAction(UIAlertAction.init(title: "Cancel", style: .cancel, handler: nil))
    self.present(alert, animated: true, completion: nil)

}
@IBAction func btnUploadImage(_ sender: UIButton) {
    let image: UIImage? = self.uploadImg.image
    let uploadDict = ["user_id":getUserId] as [String:String]
    AF.upload(multipartFormData: { MultipartFormData in
        let image :Data = (image?.jpegData(compressionQuality: 1))!
        MultipartFormData.append(image, withName: "image" , fileName: "image.jpeg" , mimeType: "image/jpeg")
        for(key,value) in uploadDict{
            MultipartFormData.append(value.data(using: String.Encoding.utf8)!, withName: key)}
    }, to: "http://XXXXXXXXXXXXXXXX/uploadImage", encodingCompletion: {
        EncodingResult in
        switch EncodingResult{
        case .success(let upload, _, _):
            upload.responseJSON { response in
                debugPrint("SUCCESS RESPONSE: (response)")
            }
        case .failure(let encodingError):
            print("ERROR RESPONSE: (encodingError)")
        }        })
}
@IBAction func btnUpdateDetails(_ sender: UIButton) {
    postJSON()
    self.navigationController?.popViewController(animated: true)
}

}

Answer 1

来自Alamofire 5.0迁移指南：

• MultilitpartFormData 的 API 已更改，用于创建和上传 MultipartFormData 的顶级上传方法已更新以匹配其他请求 API，因此不再需要处理多部分编码的结果。

所以你的代码应该是这样的：

@IBAction func btnUploadImage(_ sender: UIButton) {
  let uploadDict = ["user_id": "getUserId"] as [String:String]
  AF.upload(multipartFormData: { MultipartFormData in
    let image: Data = self.uploadImg.image!.jpegData(compressionQuality: 1.0)!
     MultipartFormData.append(image, withName: "image" , fileName: "image.jpeg" , mimeType: "image/jpeg")
            for(key,value) in uploadDict {
                MultipartFormData.append(value.data(using: String.Encoding.utf8)!, withName: key)
            }
        }, to: "http://XXXXXXXXXXXXXXXX/uploadImage", method: .post, headers: ["Content-Type": "application/json", 
         "authorization": "bearer (token)"])
   .responseJSON { (response) in
            debugPrint("SUCCESS RESPONSE: (response)")
   }
}

因此，您不需要闭包encodingCompletion并立即使用响应JSON。

Answer 2

检查一下：
https://github.com/Alamofire/Alamofire/issues/2942搜索"创建一个参数字典[字符串：数据]，然后将条目附加到实际文件之前">

Answer 3

我刚刚安装了 pods

pod 'Alamofire', '~> 5.0.0-beta.5'

示例代码

let image: UIImage? = self.uploadImg.image;
    let uploadDict = ["user_id":getUserId] as [String:String]
    Alamofire.upload(multipartFormData: { MultipartFormData in
        let image :Data = (image?.jpegData(compressionQuality: 1))!
        MultipartFormData.append(image, withName: "image" , fileName: "image.jpeg" , mimeType: "image/jpeg")
        for(key,value) in uploadDict{
            MultipartFormData.append(value.data(using: String.Encoding.utf8)!, withName: key)}
    }, to: "http://XXXXXXXXXXXXXXXX/uploadImage", encodingCompletion: {
        EncodingResult in
        switch EncodingResult{
        case .success(let upload, _, _):
            upload.responseJSON { response in
                debugPrint("SUCCESS RESPONSE: (response)")
            }
        case .failure(let encodingError):
            print("ERROR RESPONSE: (encodingError)")
        }        })