swift将struct转化为json

概述 struct Car: JSONSerializable {         var manufacturer: String         var model: String         var mileage: Float                  var owner: Owner     }          struct Owner: JSONSerializable {

struct Car: JsONSerializable {
var manufacturer: String
var model: String
var mileage: float

var owner: Owner
}

struct Owner: JsONSerializable {
var name: String
}

let car = Car(manufacturer: "Tesla",model: "Model T",mileage: 1234.56,owner: Owner(name: "Emil"))

if let Json = car.toJsON() {
print(Json)

}

// // JsONSerializable.swift // Longsheng // // Created by 关洪昌 on 16/9/30. // copyright © 2016年 夸克时代. All rights reserved. // protocol JsONRepresentable { var JsONRepresentation: AnyObject { get } } protocol JsONSerializable: JsONRepresentable { } extension JsONSerializable { var JsONRepresentation: AnyObject { var representation = [String: AnyObject]() for case let (label?,value) in Mirror(reflecting: self).children { switch value { case let value as JsONRepresentable: representation[label] = value.JsONRepresentation case let value as NSObject: representation[label] = value default: // Ignore any unserializable propertIEs break } } return representation as AnyObject } } extension JsONSerializable { func toJsON() -> String? { let representation = JsONRepresentation guard JsONSerialization.isValIDJsONObject(representation) else { return nil } do { let data = try JsONSerialization.data(withJsONObject: representation,options: []) return String(data: data,enCoding: String.EnCoding.utf8) } catch { return nil } } }

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