ios 如何使用 Alamofire 4 SessionManager？
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How to use Alamofire 4 SessionManager?
提问by yasin
I was using Alamofire 3.4 in Swift 2.3 and I need to update my code to Swift 3 and Alamofire 4. I was using Alamofire's Manager to do a POST in a url. I read the documentation about SessionManager and I understand that the request uses the method .GET.
我在 Swift 2.3 中使用 Alamofire 3.4，我需要将我的代码更新为 Swift 3 和 Alamofire 4。我使用 Alamofire 的管理器在 url 中执行 POST。我阅读了有关 SessionManager 的文档，我知道该请求使用了 .GET 方法。
I was using Manager .Response() to get the callback from the request, now that's changed in SessionManager.
我正在使用 Manager .Response() 从请求中获取回调，现在它在 SessionManager 中发生了变化。
How do I make a POST method using SessionManager? And how do I get the response from the request?
如何使用 SessionManager 制作 POST 方法？以及如何从请求中获得响应？
This is my original code:
这是我的原始代码：
import UIKit
import AEXML
import Alamofire
class Request: NSObject {
internal typealias RequestCompletion = (statusCode: Int?, error:NSError?) -> ()
private var completionBlock: RequestCompletion!
var serverTrustPolicy: ServerTrustPolicy!
var serverTrustPolicies: [String: ServerTrustPolicy]!
var afManager: Manager!
func buildBdRequest(ip : String, serviceStr : String, completionBlock:RequestCompletion){
let url = getURL(ip, service: serviceStr)
configureAlamoFireSSLPinningWithCertificateData()
makeAlamofireRequest(url)
self.completionBlock = completionBlock
}
func makeAlamofireRequest(url : String){
self.afManager.request(.POST, url)
.validate(statusCode: 200..<300)
.response { request, response, data, error in
print("data - > \n \(data.debugDescription) \n")
print("response - >\n \(response.debugDescription) \n")
print("error - > \n \(error.debugDescription) \n")
var statusCode = 0
if response != nil {
statusCode = (response?.statusCode)!
}
self.completionBlock(statusCode: statusCode, error: error)
}
}
private func getURL(ip : String, service: String) -> String{
return ip + service;
}
func configureAlamoFireSSLPinningWithCertificateData() {
self.serverTrustPolicies = [ :
// "github.com": self.serverTrustPolicy!
]
self.afManager = Manager(
configuration: NSURLSessionConfiguration.defaultSessionConfiguration()
)
}
}
采纳答案by kamwysoc
I've migrated your code to Swift 3 and Alamofire 4 and here it's a result :
我已将您的代码迁移到 Swift 3 和 Alamofire 4，结果如下：
internal typealias RequestCompletion = (Int?, Error?) -> ()?
private var completionBlock: RequestCompletion!
var afManager : SessionManager!
func makeAlamofireRequest(url :String){
let configuration = URLSessionConfiguration.default
afManager = Alamofire.SessionManager(configuration: configuration)
afManager.request(url, method: .post).validate().responseJSON {
response in
switch (response.result) {
case .success:
print("data - > \n \(response.data?.debugDescription) \n")
print("response - >\n \(response.response?.debugDescription) \n")
var statusCode = 0
if let unwrappedResponse = response.response {
let statusCode = unwrappedResponse.statusCode
}
self.completionBlock(statusCode, nil)
break
case .failure(let error):
print("error - > \n \(error.localizedDescription) \n")
let statusCode = response.response?.statusCode
self.completionBlock?(statusCode, error)
break
}
}
}
Some notes about code:
关于代码的一些注意事项：
In Alamofire 4.0 you don't need to manually validate between codes 200..300. validate()method do it automatically.
在 Alamofire 4.0 中，您不需要在代码 200..300 之间手动验证。validate()方法自动执行。
文件：
Automatically validates status code within 200...299 range, and that the Content-Type header of the response matches the Accept header of the request if one is provided.
自动验证 200...299 范围内的状态代码，并且响应的 Content-Type 标头与请求的 Accept 标头匹配（如果提供）。
You can use responseparameter in responseJSONmethod. It contains all information that you need in your code.
您可以response在responseJSON方法中使用参数。它包含您在代码中需要的所有信息。
About requestmethod
关于request方法
open func request(_ url: URLConvertible, method: HTTPMethod = .get, parameters: Parameters? = nil, encoding: ParameterEncoding = URLEncoding.default, headers: HTTPHeaders? = nil) -> DataRequest
open func request(_ url: URLConvertible, method: HTTPMethod = .get, parameters: Parameters? = nil, encoding: ParameterEncoding = URLEncoding.default, headers: HTTPHeaders? = nil) -> DataRequest
All parameters except URL, are initially nil or has a default value. So it's no problem to add parameters or headers to your request.
除了 URL 之外的所有参数最初都是 nil 或具有默认值。因此，向您的请求添加参数或标头是没有问题的。
Hope it helps you
希望对你有帮助
