使用Alamofire在swift上传多个图像

我正在使用以下代码将单个图像上传到服务器： 

private static func urlRequestWithComponents(urlString:String, parameters:Dictionary, imageData:NSData?, imageName: String) -> (URLRequestConvertible , NSData) { // create url request to send let mutableURLRequest = NSMutableURLRequest(URL: NSURL(string: urlString)!) mutableURLRequest.HTTPMethod = Alamofire.Method.POST.rawValue let boundaryConstant = "myRandomBoundary12345"; let contentType = "multipart/form-data;boundary="+boundaryConstant mutableURLRequest.setValue(contentType, forHTTPHeaderField: "Content-Type") // create upload data to send let uploadData = NSMutableData() if(imageData != nil && imageData?.length != 0) { // add image uploadData.appendData("\r\n--\(boundaryConstant)\r\n".dataUsingEncoding(NSUTF8StringEncoding)!) uploadData.appendData("Content-Disposition: form-data; name=\"\(imageName)\"; filename=\"\(StringHelper.sharedInstance.randomString(5)).png\"\r\n".dataUsingEncoding(NSUTF8StringEncoding)!) uploadData.appendData("Content-Type: image/png\r\n\r\n".dataUsingEncoding(NSUTF8StringEncoding)!) uploadData.appendData(imageData!) } // add parameters for (key, value) in parameters { uploadData.appendData("\r\n--\(boundaryConstant)\r\n".dataUsingEncoding(NSUTF8StringEncoding)!) uploadData.appendData("Content-Disposition: form-data; name=\"\(key)\"\r\n\r\n\(value)".dataUsingEncoding(NSUTF8StringEncoding)!) } uploadData.appendData("\r\n--\(boundaryConstant)--\r\n".dataUsingEncoding(NSUTF8StringEncoding)!) print("upload",parameters) // return URLRequestConvertible and NSData return (Alamofire.ParameterEncoding.URL.encode(mutableURLRequest, parameters: nil).0, uploadData) }

如何通过编辑此代码在单个参数中上传多个图像？

Swift 3只需使用“[]”和图像上传参数来制作图像数组。 

 Alamofire.upload(multipartFormData: { multipartFormData in // import image to request for imageData in imagesData { multipartFormData.append(imageData, withName: "\(imageParamName)[]", fileName: "\(Date().timeIntervalSince1970).jpeg", mimeType: "image/jpeg") } for (key, value) in parameters { multipartFormData.append(value.data(using: String.Encoding.utf8)!, withName: key) } }, to: urlString, encodingCompletion: { encodingResult in switch encodingResult { case .success(let upload, _, _): upload.responseJSON { response in } case .failure(let error): print(error) } })

这个帮助我： 

 private func urlRequestWithComponentsForUploadMultipleImages(urlString:String, parameters:Dictionary, imagesData:[Data], imageName: String) -> (URLRequestConvertible , Data) { // create url request to send var mutableURLRequest = URLRequest(url: NSURL(string: urlString)! as URL) mutableURLRequest.httpMethod = Alamofire.HTTPMethod.post.rawValue let boundaryConstant = "myRandomBoundary12345"; let contentType = "multipart/form-data;boundary="+boundaryConstant mutableURLRequest.setValue(contentType, forHTTPHeaderField: "Content-Type") // create upload data to send var uploadData = Data() // add image for data in imagesData { uploadData.append("\r\n--\(boundaryConstant)\r\n".data(using: String.Encoding.utf8)!) uploadData.append("Content-Disposition: form-data; name=\"\(imageName)\"; filename=\"\(Date().timeIntervalSince1970).jpeg\"\r\n".data(using: String.Encoding.utf8)!) uploadData.append("Content-Type: image/jpeg\r\n\r\n".data(using: String.Encoding.utf8)!) uploadData.append(data) } // add parameters for (key, value) in parameters { uploadData.append("\r\n--\(boundaryConstant)\r\n".data(using: String.Encoding.utf8)!) uploadData.append("Content-Disposition: form-data; name=\"\(key)\"\r\n\r\n\(value)".data(using: String.Encoding.utf8)!) } uploadData.append("\r\n--\(boundaryConstant)--\r\n".data(using: String.Encoding.utf8)!) print("upload",parameters) return (mutableURLRequest , uploadData) }

看起来这个问题已经在SO上得到了解答，可能在多个地方。 这是我找到的一个链接：

如何使用Alamofire上传多部分图像？

为方便起见，我会粘贴他们的解决方案，但他们说它适用于Swift 3.x： 

 //MARK: - upload multiple photos func uploadImagesAndData(params:[String : AnyObject]?,image1: UIImage,image2: UIImage,image3: UIImage,image4: UIImage,headers : [String : String]?, completionHandler:@escaping CompletionHandler) -> Void { let imageData1 = UIImageJPEGRepresentation(image1, 0.5)! let imageData2 = UIImageJPEGRepresentation(image2, 0.5)! let imageData3 = UIImageJPEGRepresentation(image3, 0.5)! let imageData4 = UIImageJPEGRepresentation(image4, 0.5)! Alamofire.upload(multipartFormData: { multipartFormData in for (key, value) in params! { if let data = value.data(using: String.Encoding.utf8.rawValue) { multipartFormData.append(data, withName: key) } } multipartFormData.append(imageData1, withName: "file", fileName: "image.jpg", mimeType: "image/jpeg") multipartFormData.append(imageData2, withName: "file", fileName: "image.jpg", mimeType: "image/jpeg") multipartFormData.append(imageData3, withName: "file", fileName: "image.jpg", mimeType: "image/jpeg") multipartFormData.append(imageData4, withName: "file", fileName: "image.jpg", mimeType: "image/jpeg") }, to: K_BASEURL + K_API_LOGINDATA, encodingCompletion: { encodingResult in switch encodingResult { case .success(let upload, _, _): upload .validate() .responseJSON { response in switch response.result { case .success(let value): print("responseObject: \(value)") case .failure(let responseError): print("responseError: \(responseError)") } } case .failure(let encodingError): print("encodingError: \(encodingError)") } })

该解决方案似乎基于Alamofire文档中详述的推荐方法： https ： //github.com/Alamofire/Alamofire#uploading-multipartformdata 

 Alamofire.upload( multipartFormData: { multipartFormData in multipartFormData.append(unicornImageURL, withName: "unicorn") multipartFormData.append(rainbowImageURL, withName: "rainbow") }, to: "https://httpbin.org/post", encodingCompletion: { encodingResult in switch encodingResult { case .success(let upload, _, _): upload.responseJSON { response in debugPrint(response) } case .failure(let encodingError): print(encodingError) } })

这是我的解决方案，它将100％没有错误.. 

  Alamofire.upload(multipartFormData: { (multipartFormData : MultipartFormData) in let count = imageToUpload.count for i in 0..

在这里，imagetoupload数组是我之前制作的图像数据数组。

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