问题描述
我一直在努力将图像上传到服务器并且上传成功，但在服务器端如果我尝试打开图像，则表示无法显示，因为它包含错误。我在使用AFNetworking将图像转换为JPEGRepresentation后上传图像。
Ive been trying so hard to upload an Image to the server and it uploads successfully but on the server side if i tried opening the image it says cannot be displayed because it contains errors.I am using AFNetworking to upload the image after converting it to JPEGRepresentation.
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
}
图片来自 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
}
导致图像损坏的原因是什么？我一直与后端开发人员联系，他的机制是接收字节数组！将NSData发送到服务器，然后服务器将我的NSData转换为字节数组是否会破坏图像？还是好的？我该如何解决这个问题？我发送图像时有什么问题吗？
What is causing the image to be damaged ? I've been in contact with backend developer and his mechanism is to receive byte array ! sending NSData to the server and then the server convert my NSData to byte array is damaging the image ? or its ok ? How do i fix this issue ? is there is anything wrong I'm doing when i am sending the image ?
推荐答案
1）在（任务，错误） - > Void in 打印错误（如果存在），因为如果出现问题，您会收到错误。
1) In (task, error) -> Void in print error if it exists, because if something goes wrong you receive error there.
NSLog("%@", error.localizedDescription)
2）您确定名称：1是否写入？因为这是后端获取文件数据的字段名称（询问后端开发人员的此字段名称）
2) Are you sure that name: "1" is write? Because this is the name of field where the backend get the file data (ask about this field name your backend developer)
3）将文件类型 jpeg 附加到上传图片名称：
3) Append file type jpeg to uploading image name:
formData.appendPartWithFileData(imageData, name: "1", fileName: "userimage\(self.objManager.userID).jpeg", mimeType: "image/jpeg")
这篇关于使用AFNetworking将图像上传到服务器已损坏的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！