我正在使用alamofire 4.7和swift 4
我需要将image和json上传到服务器。
我使用下面的代码进行上传我发现结果失败但是数据插入服务器但没有得到响应，显示出一些序列化错误就像这样
▿ result : FAILURE: responseSerializationFailed(Alamofire.AFError.ResponseSerializationFailureReason.jsonSerializationFailed(Error Domain=NSCocoaErrorDomain Code=3840 "Invalid value around character 0." UserInfo={NSDebugDescription=Invalid value around character 0.}))
▿ failure : AFError
▿ responseSerializationFailed : ResponseSerializationFailureReason
▿ timeline : Timeline: { "Request Start Time": 548835779.066, "Initial Response Time": 548835779.074, "Request Completed Time": 548835779.127, "Serialization Completed Time": 548835779.127, "Latency": 0.008 secs, "Request Duration": 0.061 secs, "Serialization Duration": 0.000 secs, "Total Duration": 0.061 secs }
- requestStartTime : 548835779.06617701
- initialResponseTime : 548835779.07390201
- requestCompletedTime : 548835779.12704694
- serializationCompletedTime : 548835779.12748504
- latency : 0.0077250003814697266
- requestDuration : 0.060869932174682617
- serializationDuration : 0.00043809413909912109
- totalDuration : 0.061308026313781738
▿ _metrics : Optional<AnyObject>
=============================================== ==================
let auth : String = MitraModal.sharedInstance().getBasicAuthenticationString()
let headers = ["Authorization": auth, "Content-type": "multipart/form-data"]
Alamofire.upload(multipartFormData: { (multipartFormData) in
multipartFormData.append("\(parameters)".data(using: String.Encoding.utf8)!, withName: "data" as String)
if (!imageArray.isEmpty) {
for item in imageArray {
multipartFormData.append(item!, withName: "file", fileName: "image.png", mimeType: "image/png")
}
}
}, usingThreshold: UInt64.init(), to: url, method: .post, headers: headers) { (result) in
switch result{
case .success(let upload, _, _):
upload.responseJSON { response in
if let JSON = response.result.value
{
print("JSON: \(JSON)")
onCompletion?(JSON as? JSON)
print("Successfully uploaded")
}
if let err = response.error {
onError?(err)
return
}
onCompletion?(nil)
}
case .failure(let error):
print("Error in upload: \(error.localizedDescription)")
onError?(error)
}
}
}
有人帮忙吗？
答案 0 :(得分：3)
由于我是新手，但几天前，我在上传图片时遇到同样的问题，您必须在服务器端使用文件接受图片，因为您的图片标记包含 withName：“file”。
func AlamofireUploadImages(){
let url : String = URL_IP+"/ZameenServer/api/addNewProperty.php"
for img in HOUSEImages{
let data = UIImageJPEGRepresentation(img, 0.2)!
ImagesData.append(data)
}
let parameters = [
"userId" : "5",
"unit" : "6789"
] //Optional for extra parameter
Alamofire.upload(multipartFormData: { multipartFormData in
for imageData in self.ImagesData {
multipartFormData.append(imageData, withName: "file[]", fileName: self.randomString(length: 5)+".jpeg", mimeType: "image/jpeg")
}
for (key, value) in parameters {
multipartFormData.append((value?.data(using: String.Encoding.utf8)!)!, withName: key)
} //Optional for extra parameters
},
to:url)
{ (result) in
switch result {
case .success(let upload, _, _):
upload.uploadProgress(closure: { (progress) in
print("Upload Progress: \(progress.fractionCompleted)")
})
upload.responseJSON
{
response in
print("Response :\(response.result.value)")
}
case .failure(let encodingError):
print("no Error :\(encodingError)")
}
}
}
注意：由于我正在上传多个图片，因此要上传多个图片，请使用 withName：“file []”，或者使用 withName： “文件”
可能会帮助你。
由于
答案 1 :(得分：0)
let url = BaseViewController.API_URL + "uploads"
let image = info[UIImagePickerControllerEditedImage] as? UIImage
let imgData = UIImageJPEGRepresentation(image!, 0.2)!
let parameters = [
"user_id" : UserDefaults.standard.value(forKey: "userId")!
]
Alamofire.upload(multipartFormData: { multipartFormData in
multipartFormData.append(imgData, withName: "uload_data",fileName: "file.jpg", mimeType: "image/jpg")
for (key, value) in parameters {
multipartFormData.append((value as AnyObject).data(using: String.Encoding.utf8.rawValue)!, withName: key)
} //Optional for extra parameters
},
to:url)
{ (result) in
switch result {
case .success(let upload, _, _):
upload.uploadProgress(closure: { (progress) in
print("Upload Progress: \(progress.fractionCompleted)")
})
upload.responseJSON { response in
self.objHudHide()
print(response.result.value)
let jsonDict : NSDictionary = response.result.value as! NSDictionary
print(jsonDict)
if jsonDict["status"] as! String == "Success"
{
let detailDict : Dictionary = jsonDict["detail"] as! Dictionary<String,Any>
if let getTotalPrice = detailDict["total_price"]
{
self.lblTotalPrice.text = "$ \(getTotalPrice) + Free Shipping"
}
if let getTotalSize = detailDict["total_upload_size"]
{
self.lblTotalSize.text = "Total Size : \(getTotalSize)"
}
}
else
{
let alertViewController = UIAlertController(title: NSLocalizedString("Alert!", comment: ""), message:"Something Went wrong please try again." , preferredStyle: .alert)
let okAction = UIAlertAction(title: NSLocalizedString("Ok", comment: ""), style: .default) { (action) -> Void in
}
alertViewController.addAction(okAction)
self.present(alertViewController, animated: true, completion: nil)
}
}
case .failure(let encodingError):
print(encodingError)
}
}
答案 2 :(得分：0)
我也遇到类似的问题。这可能导致多种原因。在我的情况下，这是POST请求的参数键错误。当您执行以下行
multipartFormData.append(item!, withName: "file", fileName: "image.png", mimeType: "image/png")
withName:"file"属性引用POST请求图像的参数密钥（Json请求的密钥）。因此，您无法在此处使用任何想要的文本。请添加API所引用图像的正确参数键，而不要添加"file"。假设API使用“ fileImage”作为参数键来访问图像。因此，上一行应该是这样的。
multipartFormData.append(item!, withName: "fileImage", fileName: "image.png", mimeType: "image/png")