AlamofireObjectMapper：带有标识符的 JSON

Question

封装数据时是否需要为AlamofireObjectMapper写一个wrapper-object？例如。如果天气数据位于命名数组“data”中。映射的最佳解决方案是什么？

{
    "data": [
        {
            "conditions": "Partly cloudy",
            "day": "Monday",
            "temperature": 20
        },
        {
            "conditions": "Showers",
            "day": "Tuesday",
            "temperature": 22
        },
        {
            "conditions": "Sunny",
            "day": "Wednesday",
            "temperature": 28
        }
    ]
}

let URL = "https://raw.githubusercontent.com/tristanhimmelman/AlamofireObjectMapper/f583be1121dbc5e9b0381b3017718a70c31054f7/sample_array_json"
Alamofire.request(.GET, URL, parameters: nil)
         .responseArray { (response: [Forecast]?, error: ErrorType?) in
            if let response = response {
                for forecast in response {
                    print(forecast.day)
                    print(forecast.temperature)           
                }
            }
}

Answer 1

其实这是最舒服的选择。

你可以有一个像这样的包装对象：

class Forecast: Mappable {

   // MARK: - Attributes

   var conditions: String = ""
   var day: String = ""
   var temperature: NSNumber

   // MARK: - Methods

   init() { }

   required init?(_ map: Map) { }

   func mapping(map: Map) {
       conditions <- map["conditions"]
       day <- map["day"]
       temperature <- map["temperature"]
   }
} 

然后，管理请求：

Alamofire.request(.POST, URL).responseObject({ (response: Response<Forecast, NSError>) -> Void in
            if response.result.isSuccess {
                print(response.result.value!)
            }
        })

祝你好运！

Answer 2

您可以使用 AnyObject 映射响应，如下例所示；

    let URL = "https://raw.githubusercontent.com/tristanhimmelman/AlamofireObjectMapper/f583be1121dbc5e9b0381b3017718a70c31054f7/sample_array_json"
    Alamofire.request(.GET, URL).responseJSON { (response : Response<AnyObject, NSError>) -> Void in
        print(response.result.value.debugDescription)
        let arr = response.result.value! as? Array<AnyObject>

        for a in arr! {
            let condition = a["conditions"]
            let day = a["day"]
            print("\(day!!) condition is \(condition!!)")
        }


    }

输出：

Monday condition is Partly cloudy
Tuesday condition is Showers
Wednesday condition is Sunny 

Answer 3

所以查看文档，看起来数据是在请求级别指定的，如他们在此处的示例中所示：

let URL = "https://raw.githubusercontent.com/tristanhimmelman/AlamofireObjectMapper/d8bb95982be8a11a2308e779bb9a9707ebe42ede/sample_json"
Alamofire.request(.GET, URL).responseObject("data") { (response: 
Response<WeatherResponse, NSError>) in

let weatherResponse = response.result.value

print(weatherResponse?.location)
if let threeDayForecast = weatherResponse?.threeDayForecast {
    for forecast in threeDayForecast {
        print(forecast.day)
        print(forecast.temperature)           
     }
  }
}

关键是：

Alamofire.request(.GET, URL).responseObject("data") {（响应：