我目前正在开发一款应用，但我遇到了问题。当用户登录webservice时，如果登录成功，服务器将以JSON响应，我们使用＆＃34; firstName＆＃34;和＆＃34; SecondName＆＃34;然后创建我们的用户＆＃34;这是在另一个名为User.swift的文件中定义的结构。然后，我想要做的是使用＆＃34; firstName＆＃34;已被赋予＆＃34;用户结构＆＃34;在我的主页视图中成功登录后的UILabel。当我尝试给我的标签User.prenom（法语为firstName）时，我收到错误：User.type没有名为...的成员
这是我的代码：
定义登录方法的客户端文件：
import Foundation
import Alamofire
import SwiftyJSON
private let _instance = Client()
class Client {
// Router is used to do a request to the server.
private enum Router: URLRequestConvertible {
private static let baseURL = "https://mobile.uqam.ca/portail_etudiant/"
// stores the authentication token.
static var code_perm: String?
static var nip:String?
// Login request.
case Login(String, String)
// URLRequestConvertible protocol.
var URLRequest: NSURLRequest {
// Returns the path, http method and parameters for the request.
var (path: String, method: Alamofire.Method, parameters: [String: AnyObject]) = {
switch self {
case .Login (let code_perm, let nip):
let params: [String: AnyObject] = [
"code_perm": code_perm,
"nip": nip,
]
return ("proxy_dossier_etud.php", .POST, params)
}
}()
// Setup the URLRequest.
let url = NSURL(string: Router.baseURL)
let urlRequest = NSMutableURLRequest(URL: url!.URLByAppendingPathComponent(path))
urlRequest.HTTPMethod = method.rawValue
if let code_perm = Router.code_perm {
if let nip = Router.nip{
parameters["nip"] = nip
parameters["code_perm"] = code_perm
}
}
let encoding = Alamofire.ParameterEncoding.URL
return encoding.encode(urlRequest, parameters: parameters).0
}
}
// Singleton
class var sharedInstance: Client {
return _instance
}
private init() {}
// Login logs in the user with his email and password.
func login(code_perm:String, nip:String, callback:(LoginResponse?) -> Void) {
Alamofire.request(Router.Login(code_perm, nip)).responseJSON { (_, _, data, error) in
if(error != nil) {
callback(nil)
return
}
var json = JSON(data!)
let prenom = json["socio"]["prenom"].stringValue
let nom = json["socio"]["nom"].stringValue
Router.code_perm = code_perm
Router.nip = nip
callback(LoginResponse(
user: User(prenom: prenom,nom: nom)
))
}
}
}
登录函数调用的loginViewController
import UIKit
class LoginViewController: UIViewController {
@IBOutlet weak var LoginScreenImage: UIImageView!
@IBOutlet weak var codeTextField: UITextField!
@IBOutlet weak var nipTextField: UITextField!
@IBOutlet weak var loadingLogin: UIActivityIndicatorView!
let client = Client.sharedInstance
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
LoginScreenImage.image = UIImage(named: "UQAMLOGO")
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
@IBAction func connect() {
let code_perm = codeTextField.text
let nip = nipTextField.text
self.loadingLogin.startAnimating()
if code_perm != "" && nip != "" {
client.login(code_perm, nip: nip, callback: { (response) in
if let response = response {
self.loadingLogin.stopAnimating()
let homeViewController = self.storyboard!.instantiateViewControllerWithIdentifier("HomeViewController") as HomeViewController
self.showViewController(homeViewController, sender: self)
} else {
self.loadingLogin.stopAnimating()
let badLogin = UIAlertController(title: "Échec de connexion", message: "La combinaison du code permanent et du nip n'est pas bonne", preferredStyle: .Alert)
let reessayer = UIAlertAction(title: "Réessayer", style: .Default, handler: { (reessayer) -> Void in
self.dismissViewControllerAnimated(true , completion: nil)
})
badLogin.addAction(reessayer)
self.presentViewController(badLogin, animated: true, completion: nil)
}
})
}
}
}
User.swift，而用户结构是
import Foundation
struct User {
var prenom :String
var nom: String
}
struct LoginResponse {
var user: User
}
最后是HomePageViewController，我尝试将值赋给我的标签：
import UIKit
class HomeViewController: UIViewController {
@IBOutlet weak var schedule: UIImageView!
@IBOutlet weak var courses: UIImageView!
@IBOutlet weak var email: UIImageView!
@IBOutlet weak var grades: UIImageView!
@IBOutlet weak var bienvenueLabel: UILabel!
let client = Client.sharedInstance
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
schedule.image = UIImage(named:"schedule")
courses.image = UIImage(named: "courses")
email.image = UIImage(named:"mail")
grades.image = UIImage(named:"grades")
bienvenueLabel.text = User.prenom
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
感谢大家的帮助，祝你有一个美好的一天
查尔斯
答案 0 :(得分：0)
您正在访问该类而不是实例。相反，您应该将响应实例传递给HomeViewController：
class HomeViewController : .. {
// ...
var loginResponse : LoginResponse
// ...
override func viewDidLoad() {
// ...
bienvenueLabel.text = loginResponse.user.prenom
}
}
// ...
client.login(code_perm, nip: nip, callback: { (response) in
if let loginResponse = response as LoginResponse {
self.loadingLogin.stopAnimating()
let homeViewController = self.storyboard!.instantiateViewControllerWithIdentifier("HomeViewController") as HomeViewController
homeViewController.loginResponse = loginResponse
// assign your instance ^^^^^^^^^^^^^^^^^^^^^^^^
self.showViewController(homeViewController, sender: self)
}
答案 1 :(得分：0)
您正在访问该类而不是实例。相反，您应该将响应实例传递给HomeViewController：
class HomeViewController : .. {
// ...
var loginResponse : LoginResponse
// ...
override func viewDidLoad() {
// ...
bienvenueLabel.text = loginResponse.user.prenom
}
}
// ...
client.login(code_perm, nip: nip, callback: { (response) in
if let loginResponse = response as LoginResponse {
self.loadingLogin.stopAnimating()
let homeViewController = self.storyboard!.instantiateViewControllerWithIdentifier("HomeViewController") as HomeViewController
homeViewController.loginResponse = loginResponse
// assign your instance ^^^^^^^^^^^^^^^^^^^^^^^^
self.showViewController(homeViewController, sender: self)
}
这确实不是很好的结构，但它至少应该回答你的问题。