使用Alamofire上载图片的问题（有图片作为参数）

本文介绍了使用Alamofire上载图片的问题（有图片作为参数）的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

这就是我尝试使用Alamofire上传图像的方式。但是程序崩溃，提示类似... 'NSInvalidArgumentException'，原因：'-[____ SwiftTypePreservingNSNumber dataUsingEncoding：]：无法识别的选择器已发送至实例... 我无法找出确切原因。这就是我发出请求的方式...

This is how I am trying to upload an image using Alamofire. But the program crashes saying something like...'NSInvalidArgumentException', reason: '-[_SwiftTypePreservingNSNumber dataUsingEncoding:]: unrecognized selector sent to instance... I'm not able figure the exact reason.This is how I'm making the request...

for i in 1...(imageArray.count) { for img in imageArray { let url = "myapp/a/images_upload" let headers = [ "Content-Type":"application/x-www-form-urlencoded"] let imageData: Data = (UIImageJPEGRepresentation(img, 0.6) as Data?)! print(imageData) let parameters: [String: Any] = [ "access_token": commonVarForAccessToken, "seller_id": idForNewOldUser, "product_id": self.productId, "is_default": "1", "sequence": i, "image": imageData ] Alamofire.upload(multipartFormData: { (multipartFormData) in print(parameters) multipartFormData.append(imageData as Data, withName: "home-\(self.index)", fileName: "home-\(self.index)", mimeType: "image/jpeg") for (key, value) in parameters { print(key,value) multipartFormData.append((value as AnyObject).data(using: String.Encoding.utf8.rawValue)!, withName: key) } }, to:url) { (result) in switch result { case .success(let upload, _, _): upload.uploadProgress(closure: { (Progress) in //Print progress }) upload.responseJSON { response in print(response.request) // original URL request if let JSON = response.result.value { print("JSON: \(JSON)") } } case .failure(let encodingError): print(encodingError) break }}}}

希望有人可以帮忙...谢谢...：）

Hope somebody can help...Thanks...:)

推荐答案

尝试使用此代码。它对我有用。 p>

Try to use this code.It's working for me.

let para: [String: Any] Alamofire.upload(multipartFormData: {(multipartFormData) in for i in 0..<uploadImages.count{ multipartFormData.append(UIImageJPEGRepresentation(uploadImages[i], 0.3)!, withName: "image\(i)", fileName: "swift_file\(i).jpeg", mimeType: "image/jpg") } for (key, value ) in para { multipartFormData.append((value).data(using: String.Encoding.utf8)!, withName: key) } }, to: apiURL) { (result) in switch result { case .success(let upload, _,_ ): upload.uploadProgress(closure: { (progress) in UILabel().text = "\((progress.fractionCompleted * 100)) %" print (progress.fractionCompleted * 100) }) upload.responseJSON { response in guard ((response.result.value) != nil) else{ print(response.result.error!.localizedDescription) return }