将json集合响应映射到swift对象类的简单方法

Question

我已经尝试了很多库,Alamofire,JsonHelper,ObjectMapper等...但不幸的是,我不能将json集合响应映射到对象类.我开发了一个带有swift 1.2和xcode 6.3的IOS 8应用程序,我的模型的两个类是:

Club.swift

class Club { 

    var id: String = ""
    var name: String = ""
    var imageUrl: String = ""
    var hasVip: Bool = false
    var desc: String = ""
    var location: [Location] = []

}

Location.swift

class Location {

    var country: String = ""
    var city: String = ""
    var address: String = ""
    var zip: String = ""
    var underground: [String] = []

}

我有另一个类要求我的API:

apliClient.swift

class ApiClient {

    var clubs = [Club]?()


    func getList(completionHandler: ([JSON]) -> ()) {
        let URL = NSURL(string: "https://api.com/v1/clubs")
        let mutableURLRequest = NSMutableURLRequest(URL: URL!)

        mutableURLRequest.setValue("Content-Type", forHTTPHeaderField: "application/json")
        mutableURLRequest.HTTPMethod = "GET"
        mutableURLRequest.setValue("Bearer R01.iNsG3xjv/r1LDkhkGOANPv53xqUFDkPM0en5LIDxx875fBjdUZLn1jtUlKVJqVjsNwDe1Oqu2WuzjpaYbiWWhw==", forHTTPHeaderField: "Authorization")

        let manager = Alamofire.Manager.sharedInstance
        let request = manager.request(mutableURLRequest)

        request.responseJSON { (request, response, json , error) in
            if (json != nil){
                var jsonObj = JSON(json!)
                if let data = jsonObj["hits"].arrayValue as [JSON]?{
                    completionHandler(data)
                }
            }
        }
    }
}

我认为,有一种简单的方法可以在swift中映射对象.我想知道,如何将completionHandler(数据)转换为[Club]对象？

let data = jsonObj ["hits"].arrayValue as [JSON]？ 是

[{
  "_id" : "5470def9e0c0be27780121d7",
  "imageUrl" : "https:\/\/s3-eu-west-1.amazonaws.com\/api-static\/clubs\/5470def9e0c0be27780121d7_180.png",
  "name" : "Mondo",
  "hasVip" : false,
  "location" : {
    "city" : "Madrid"
  }
}, {
  "_id" : "540b2ff281b30f3504a1c72f",
  "imageUrl" : "https:\/\/s3-eu-west-1.amazonaws.com\/api-static\/clubs\/540b2ff281b30f3504a1c72f_180.png",
  "name" : "Teatro Kapital",
  "hasVippler" : false,
  "location" : {
    "address" : "Atocha, 125",
    "city" : "Madrid"
  }
}, {
  "_id" : "540cd44581b30f3504a1c73b",
  "imageUrl" : "https:\/\/s3-eu-west-1.amazonaws.com\/api-static\/clubs\/540cd44581b30f3504a1c73b_180.png",
  "name" : "Charada",
  "hasVippler" : false,
  "location" : {
    "address" : "La Bola, 13",
    "city" : "Madrid"
  }
}]

Answer 1

您可以使用ObjectMapper上面提到的库来执行此操作.只需创建Club类并确保它实现Mappable协议.然后您可以使用ObjectMapper如下映射数据:

let clubs = Mapper<Club>().mapArray(JSONString)

完全披露:我是ObjectMapper的作者.