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) }
            }
    }
}

10-07 19:51
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