斯威夫特解析JSON数据从Guidebox API

Question

我试图解析使用雨燕从Guidebox JSON数据。该数据的一个例子是这样的：

{ 
    "results": [ 
    { 
     "id": 14673, 
     "title": "The Golden Girls", 
     "alternate_titles": [ 
     "Golden Palace" 
     ], 
     "container_show": 0, 
     "first_aired": "1985-09-14", 
     "imdb_id": "tt0088526", 
     "tvdb": 71292, 
     "themoviedb": 1678, 
     "freebase": "\/m\/01fszq", 
     "wikipedia_id": 217200, 
     "tvrage": { 
     "tvrage_id": 5820, 
     "link": "http:\/\/www.tvrage.com\/shows\/id-5820" 
     }, 
     "artwork_208x117": "http:\/\/static-api.guidebox.com\/120214\/thumbnails_small\/14673-9570342022-208x117-show-thumbnail.jpg", 
     "artwork_304x171": "http:\/\/static-api.guidebox.com\/120214\/thumbnails_medium\/14673-3759246217-304x171-show-thumbnail.jpg", 
     "artwork_448x252": "http:\/\/static-api.guidebox.com\/120214\/thumbnails_large\/14673-2249565586-448x252-show-thumbnail.jpg", 
     "artwork_608x342": "http:\/\/static-api.guidebox.com\/120214\/thumbnails_xlarge\/14673-6064109057-608x342-show-thumbnail.jpg" 
    } 
    ], 
    "total_results": 1, 
    "development_api_key": "You are currently using a temporary development API key. This API key is for testing only. You have used 57 of 250 available calls. Please see the API docs (http:\/\/api.guidebox.com\/apidocs) for additional information or to generate a production API key." 
} 

看来，我的情况，使用数据的最简单的方法是将其转换为[字符串：任何]，因为我真正需要的是“ID “，”标题“和艺术品价值。然而，我所使用的所有（无数）方法都失败了，因为“alternate_titles”被解析为一个NSArray，这使得一切变得更加困难。 到目前为止，我已经试过这种方法的变化：

 do { 
     let jsonResult = try JSONSerialization.jsonObject(with: data!, options: JSONSerialization.ReadingOptions.mutableContainers) as! [String: Any] 
     let datafinal = jsonResult["results"] as! [String: Any] 
//Fails around here usually, when the data is converted to [String: Any] or [Any:Any] because of the array. 
     let title = datafinal["title"] 
     } catch { 
      print("JSON Preocessing failed") 
     } 

我也用了SwiftyJSON库尝试将数据更易于阅读JSON转换，但拉字典的方法，由它总是失败（我猜也是由于结构）。任何人都有一个简单的方法从URL中获取JSON数据并轻松访问“结果”中的值？任何帮助深表感谢！

Answer 1

试试这个

do { 
    let jsonResult = try JSONSerialization.jsonObject(with: data!, options: JSONSerialization.ReadingOptions.mutableContainers) as! [String: Any] 
    let datafinal = jsonResult["results"] as! NSArary 

    let title = datafinal[0].value(forKey: "title") 
    print("\(title)") 
     } catch { 
      print("JSON Preocessing failed") 
     } 

Answer 2

您只需要将结果作为array进行访问，并将array的first element取为Dictionary。

在未来，here是伟大的工具，使用的是什么，你可以更方便地检查数据的结构，它可能像揭示了这个问题快。

do { 
    let jsonResult = try JSONSerialization.jsonObject(with: data!, options: JSONSerialization.ReadingOptions.mutableContainers) as! [String: Any] 
    guard let results = jsonResult["results"] as? [Any], let resultDictinary = results.first as? [String: Any] else { 
     fatalError("Data structure invalid") 
    } 
    let title = resultDictinary["title"] 
} catch { 
    print("JSON Preocessing failed") 
}