使用AFNetworking将图像上传到服务器达到了损坏

我一直在努力上传一个图像到服务器，它成功上传，但在服务器端，如果我试图打开它说cannot be displayed because it contains errors的图像， cannot be displayed because it contains errors 。我使用AFNetworking转换成JPEGRepresentation后上传图像。

 let uploadManager : AFHTTPSessionManager = AFHTTPSessionManager() uploadManager.responseSerializer = AFHTTPResponseSerializer() as AFHTTPResponseSerializer uploadManager.requestSerializer = AFHTTPRequestSerializer() as AFHTTPRequestSerializer uploadManager.requestSerializer.timeoutInterval = 20 uploadManager.POST(baseURL, parameters: nil, constructingBodyWithBlock: { (formData) -> Void in let selectedImage = self.userImage.image let imageData : NSData = UIImageJPEGRepresentation(selectedImage!, 0.5)! formData.appendPartWithFileData(imageData, name: "1", fileName: "userimage\(self.objManager.userID)", mimeType: "image/jpeg") print("Size of Image(Kbytes):\(imageData.length/1024)") print(baseURL) }, progress: nil, success: { (task, responseObject) -> Void in let jsonData: NSData = responseObject as! NSData let dataString = String(data: jsonData, encoding: NSUTF8StringEncoding) print(dataString) }) { (task, error) -> Void in } 

该图像来自imagePickerController ：

 func imagePickerController(picker: UIImagePickerController, didFinishPickingImage image: UIImage, editingInfo: [String : AnyObject]?) { print("Did finish picking the image succesfully") self.userImage.image = image picker.dismissViewControllerAnimated(true, completion: nil) // call uploading image function } 

什么导致图像被损坏？ 我一直在与后端开发人员联系，他的机制是接收字节数组！ 发送NSData到服务器，然后服务器将我的NSData转换为字节数组损坏图像？ 还是好的？ 我如何解决这个问题？ 当我发送图像时是否有什么错误？

Answer 1

1）在(task, error) -> Void in打印错误，如果它存在，因为如果出现问题，你会收到错误。

 NSLog("%@", error.localizedDescription) 

2）你确定这个name: "1"是name: "1"吗？ 因为这是后端获取文件数据的字段的名称（请询问您的后端开发人员的该字段名称）

3）追加文件typesjpeg上传图片名称：

 formData.appendPartWithFileData(imageData, name: "1", fileName: "userimage\(self.objManager.userID).jpeg", mimeType: "image/jpeg")