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出现以下问题，事实是有时图像没有上传到服务器。所有数据都正确，图像存在，变量排列顺序正确，函数报告上传成功，但有时图像仍然没有到达服务器。Retorfit 库没有这样的问题，但使用 Alamofire 时经常会出现这种问题。我还不知道为什么。

class func write_photo(params:[String:String],image:UIImage, in_position:String, completion:_ js:String, _ success:Bool -> Void, failure:_ errorMessage:String,_ failure:Bool -> Void) {
    let url = BaseURL + "xdb_items.write_photo"
    let URL = try! URLRequest(url: url, method: .post)
    let in_idclient = params["in_idclient"]
    let in_iditem = params["in_iditem"]
    let imgData = UIImageJPEGRepresentation(image, 0.5)!
    sessionManagerImage.upload(multipartFormData: { multipartFormData in
        multipartFormData.append((in_idclient?.data(using: String.Encoding.utf8)!)!, withName: "in_idclient")
        multipartFormData.append((in_iditem?.data(using: String.Encoding.utf8)!)!, withName: "in_iditem")
        multipartFormData.append(imgData, withName: "in_filename", fileName: "photo", mimeType: "image/png")
        multipartFormData.append((in_position.data(using: String.Encoding.utf8)!), withName: "in_position")
    }, with: URL, encodingCompletion: {
        encodingResult in
        switch encodingResult {
            case .success(let upload, _, _):
            upload.response { response in
                completion("", true)
            }
            case .failure(let encodingError):
            print("ERROR RESPONSE: \(encodingError)")
        }
    })
}

朋友们，当我进行应用程序推出时，Xcode 在 id_item 变量上发出了这样的警告：在进程中无法执行支持代码来读取 Objective-C 类数据。在真正的 iPhone 设备上，也许这就是问题所在

发现错误，状态码500，是因为什么原因导致的？

邮差干得好！截图邮递员： 在此处输入图像描述 在此处 输入图像描述

Postman 提供的代码，但我需要 Alamofire：

    import Foundation

let headers = [
  "content-type": "multipart/form-data; boundary=----WeXXXXXXXXXXXXXXXXXXrZu0gW",
  "Authorization": "Basic dXXXXXXXXXXXX=",
  "cache-control": "no-cache",
  "Postman-Token": "2c1bXXXXXXXXXXXXXXXXX4e"
]
let parameters = [
  [
    "name": "in_filename",
    "fileName": "/home/iv/Рабочий стол/Скрины/Скрин6.png"
  ],
  [
    "name": "in_idclient",
    "value": "516"
  ],
  [
    "name": "in_iditem",
    "value": "1232"
  ],
  [
    "name": "in_position",
    "value": "5"
  ]
]

let boundary = "----WeXXXXXXXXXXXXXXXXXXrZu0gW"

var body = ""
var error: NSError? = nil
for param in parameters {
  let paramName = param["name"]!
  body += "--\(boundary)\r\n"
  body += "Content-Disposition:form-data; name=\"\(paramName)\""
  if let filename = param["fileName"] {
    let contentType = param["content-type"]!
    let fileContent = String(contentsOfFile: filename, encoding: String.Encoding.utf8)
    if (error != nil) {
      print(error)
    }
    body += "; filename=\"\(filename)\"\r\n"
    body += "Content-Type: \(contentType)\r\n\r\n"
    body += fileContent
  } else if let paramValue = param["value"] {
    body += "\r\n\r\n\(paramValue)"
  }
}

let request = NSMutableURLRequest(url: NSURL(string: "http://XXXXXXXXXX:XXXX/XX/xdb_items.write_photo")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
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2 回答 2

0

试试这个

multipartFormData.append(imgData, withName: "in_filename", fileName: "photo", mimeType: "image/png")

至

multipartFormData.append(imgData, withName: "profile_photo")

可能这对你有帮助

于 2018-12-14T11:21:12.973 回答
0 
let imageData : Data! = (UIImage converted to Data) 

Alamofire.upload(multipartFormData: { (multipartFormData) in
                multipartFormData.append(imageData, withName: "image", fileName: "file.jpeg", mimeType: "image/jpeg")
            }, to: NSURL(string: "http://URL you want to upload it to")! as URL)
            { (result) in
                switch result {
                case .success(let upload, _, _):
                   //Success
                case .failure(let encodingError):
                    //Failure
                }
            }
于 2018-12-14T11:31:39.200 回答