如何使用 multipartFormData 和参数上传图像，使用 Alamofire 4.3 请求所需的身份验证
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【中文标题】如何使用 multipartFormData 和参数上传图像，使用 Alamofire 4.3 请求所需的身份验证【英文标题】：How to Upload image using multipartFormData and parameter, request required authentication using Alamofire 4.3 【发布时间】：2017-06-01 06:55:38 【问题描述】：你能帮我上传图片MultipartFormData 参数和请求身份验证。
let username = "username"
let password = "password"
用于请求认证
let kurl = "Server url"
let headers: HTTPHeaders = ["Authorization":"Basic \(base64EncodedCredential)"]
let parmeter = ["name":"taykun","is_user":"1"]
Alamofire.upload(multipartFormData: (multipartFormData) in
, to: kurl, encodingCompletion: (result) in
)
【问题讨论】：
【参考方案1】：为 alamofire 试试这个代码：
func uploadImageWithData(strApiUrl:String,strImageUrl:String,param:Dictionary<String, String>? = nil ,completionHandler: @escaping (_ result: NSDictionary) -> Void) -> Void
Alamofire.upload(multipartFormData: multipartFormData in
let urlImage:URL = URL.init(fileURLWithPath: strImageUrl)
multipartFormData.append(urlImage, withName: "your key for image use in API")
for (key, value) in param!
multipartFormData.append(value.data(using:String.Encoding(rawValue: String.Encoding.utf8.rawValue))!, withName: key)
, to: strApiUrl, encodingCompletion:
(encodingResult) in
print("encoding result:\(encodingResult)")
switch encodingResult
case .success(let upload, _, _):
upload.uploadProgress(closure: (Progress) in
print("Upload Progress: \(Progress.fractionCompleted)")
//send progress using delegate
)
upload.responseJSON (response) in
case .failure(let encodingError):
print(encodingError)
)
func returnResponse (response: DataResponse<Any>)->NSDictionary
if (response.result.isSuccess)
if let value = response.result.value
return value as! NSDictionary
else
print("\(response.error?.localizedDescription)")
var statusCode = 0
if let error = response.result.error as? AFError
statusCode = error._code // statusCode private
switch error
case .invalidURL(let url):
print("Invalid URL: \(url) - \(error.localizedDescription)")
case .parameterEncodingFailed(let reason):
print("Parameter encoding failed: \(error.localizedDescription)")
print("Failure Reason: \(reason)")
case .multipartEncodingFailed(let reason):
print("Multipart encoding failed: \(error.localizedDescription)")
print("Failure Reason: \(reason)")
case .responseValidationFailed(let reason):
print("Response validation failed: \(error.localizedDescription)")
print("Failure Reason: \(reason)")
switch reason
case .dataFileNil, .dataFileReadFailed:
print("Downloaded file could not be read")
case .missingContentType(let acceptableContentTypes):
print("Content Type Missing: \(acceptableContentTypes)")
case .unacceptableContentType(let acceptableContentTypes, let responseContentType):
print("Response content type: \(responseContentType) was unacceptable: \(acceptableContentTypes)")
case .unacceptableStatusCode(let code):
print("Response status code was unacceptable: \(code)")
statusCode = code
case .responseSerializationFailed(let reason):
print("Response serialization failed: \(error.localizedDescription)")
print("Failure Reason: \(reason)")
// statusCode = 3840 ???? maybe..
print("Underlying error: \(error.underlyingError)")
else if let error = response.result.error as? URLError
print("URLError occurred: \(error)")
else if let error = response.result.error as? NSError
print("timeout")
statusCode = error._code
else
print("Unknown error: \(response.result.error)")
print(statusCode)
//make a response with nil value and set error or other information in it and return it.
let paramDic:NSMutableDictionary = NSMutableDictionary()
paramDic[KEY_MESSAGE] = response.error?.localizedDescription
paramDic[KEY_DATA] = nil
paramDic[KEY_STATUS_CODE] = "\(statusCode)"
paramDic[KEY_SUCCESS] = 0
return paramDic as NSDictionary
return NSDictionary()
以这种方式调用此方法：
let imgUrl = //first store your image locally and then set image url
var dicParam = Dictionary<String , String>()//your requestparameter dictionary
API.uploadImageWithData(strApiUrl: webserviceurl, strImageUrl: imgUrl, param: dicParam, completionHandler: (result) in
print(result)
if result[KEY_SUCCESS] as! Int == 1
//success
else
//fail
)
【讨论】：
请求 url 需要基本身份验证，例如 let username = "username" let password = "password" 我怎样才能通过这个？ 简单的制作参数字典并传递给 func like,var dicParam = Dictionary以上是关于如何使用 multipartFormData 和参数上传图像，使用 Alamofire 4.3 请求所需的身份验证的主要内容，如果未能解决你的问题，请参考以下文章
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