我正在学习用swift编程,我以前用android开发了服务的消费,并通过改进和序列化将它们存储在一个模型中。现在在swift中,我使用Alamofire 4.0和SwiftyJson来使用一个服务,问题是如何将所有的响应JSON保存在一个模型中,然后使用这些数据,我已经回顾了几个例子,但是我仍然不知道如何去做。
你能告诉我怎么做吗?或者我需要添加什么来完成这个操作来获取信息,然后使用它
所以我用掉了服务
static func loginService(email : String, password : String, completionHandler : @escaping (LoginResponse) -> Void){
let parameters : Parameters = ["email": email, "password": password]
Alamofire.request(AlamofireConstants.LOGIN, method: .post, parameters: parameters, encoding: URLEncoding.default).validate(statusCode: 200..<300).responseData { response in
switch response.result {
case .failure(let error):
print("error ==> \(error)")
case .success(let data):
do{
let result = try JSONDecoder().decode(LoginResponse.self, from: data)
print(result)
} catch {
print(error)
}
}
}
}
这是我的模型
struct LoginResponse : Decodable {
let user : User?
let status: Int
let success: Bool
let message: String
}
struct User : Decodable {
let id: Int
let firstName, lastName, surName, email: String
let emailToken: String?
let validate: String
let token, nationality, documentType, documentNumber: String?
let legalName, legalNumber, birthdate: String?
let gender: String
let phoneMovil, phoneFix, icon: String?
let wishOffers, acceptTerms, isCustomer: Int
let active: Bool
let createdAt, updatedAt: String
}
这是来自response的json
{
"user": {
"id": 183,
"first_name": "teste",
"last_name": "testet",
"sur_name": "este",
"email": "adeveloper964@gmail.com",
"email_token": null,
"validate": "S",
"token": null,
"nationality": null,
"document_type": null,
"document_number": null,
"legal_name": null,
"legal_number": null,
"birthdate": null,
"gender": "O",
"phone_movil": null,
"phone_fix": null,
"icon": null,
"wish_offers": 0,
"accept_terms": 1,
"is_customer": 0,
"active": true,
"created_at": "2019-05-13 17:04:50",
"updated_at": "2019-05-14 10:19:31"
},
"status": 0,
"success": true,
"message": ""
}
我知道这个错误
keyNotFound(编码键(stringValue:“firstName”,intValue:nil),Swift.DecodingError.Context(编码路径:[CodingKeys(stringValue:“user”,intValue:nil)),debugDescription:“没有与键编码键相关联的值(stringValue:“firstName”,intValue:nil),(“firstName”),underyingerror:nil))
最佳答案
为什么选择迅捷JSON?你不需要那个。将JSON解析为模型Decodable
更容易使用,而且它是内置的(没有依赖关系)。
struct LoginResponse : Decodable {
let user: User
let status: Int
let success : Bool
let message : String
}
struct User : Decodable {
let id : Int
let firstName, lastName, surName, email : String
}
static func loginService(user : String, password : String){
Alamofire.request(AlamofireConstants.BASE_URL_TEST + "/api/loginuser", method: .post, parameters: ["email":user,"password":password], encoding: URLEncoding.default)
.validate(statusCode: 200..<300)
.responseData { response in // note the change to responseData
switch response.result {
case .failure(let error):
print(error)
case .success(let data):
do {
let decoder = JSONDecoder()
decoder.keyDecodingStrategy = .convertFromSnakeCase
let result = try decoder.decode(LoginResponse.self, from: data)
print(result)
} catch { print(error) }
}
}
}