获取此输出 json 的所有值

Question

我想提取这些咖啡的名称，这是我输出的摘录，因为我有 1000 个名称，我想自动提取它们：

results =     (
            {
        geometry =             {
            location =                 {
                lat = "-33.3979227";
                lng = "-70.58503859999999";
            };
            viewport =                 {
                northeast =                     {
                    lat = "-33.39783990000001";
                    lng = "-70.58502229999999";
                };
                southwest =                     {
                    lat = "-33.39795669999999";
                    lng = "-70.58507830000001";
                };
            };
        };
        id = 46354da06de96a36c5c44a5fa05a10f8f83f8edd;
        name = "Hotel Bidasoa";
        "opening_hours" =             {
            "open_now" = 1;
            "weekday_text" =                 (
            );
        };
            }
        );
        "place_id" = ChIJ4dfUCC7PYpYRRDkSNifrfBE;
        rating = "4.7";
        scope = GOOGLE;
        types =             (
            cafe,
            lodging,
            food,
            store,
            "point_of_interest",
            establishment
        );
        vicinity = "Avenida Vitacura 4873, Santiago, Santiago";
    },
            {
        geometry =             {
            location =                 {
                lat = "-33.37900460000001";
                lng = "-70.55533029999999";
            };
            viewport =                 {
                northeast =                     {
                    lat = "-33.37897230000002";
                    lng = "-70.5553148";
                };
                southwest =                     {
                    lat = "-33.37910149999999";
                    lng = "-70.55537679999999";
                };
            };
        };
        id = c451d2146b7a065fa1afd0ffa39353a4b1cae178;
        name = "Ceibo Emporio Cafeter\U00eda";
        "opening_hours" =             {
            "open_now" = 0;
            "weekday_text" =                 (
            );
        };

这是我的代码，但只打印我想要的名字，因为我有 1000 个名字：

let jsonResult = try JSONSerialization.jsonObject(with: urlContent, options: JSONSerialization.ReadingOptions.mutableContainers) as AnyObject

                print (jsonResult)

                    if let nombre = ((jsonResult["results"]as?NSArray)?[0]as?NSDictionary)?["name"] {
                        print (nombre)
                    }

Answer 1

一如既往：

• 从不在 Swift 中解析 JSON 时使用 NSDictionary / NSArray。
• 从不在 Swift 中使用 mutableContainers。完全没用。

---

要获取results 数组中的所有项目，请使用循环，为了方便和可读性，请使用类型别名：

typealias JSONDictionary = [String:Any]

if let jsonResult = try JSONSerialization.jsonObject(with: urlContent, options: []) as? JSONDictionary {

   print (jsonResult)
   if let results = jsonResult["results"] as? [JSONDictionary] {
      for result in results {
          print(result["name"] as? String ?? "n/a")
          if let geometry = result["geometry"] as? JSONDictionary,
             let location = geometry["location"] as? JSONDictionary {
                let lat = location["lat"] as? Double ?? 0.0
                let lng = location["lng"] as? Double ?? 0.0
                print("latitude: \(lat)")
                print("longitude: \(lng)")
          }
      }
   }
}