解析JSON斯威夫特3

Question

我一直在尋找這一整天的答案，我即將分手和哭泣，但任何人都可以告訴我或指向我如何解析這個JSON文件的方向，以便我可以訪問「成員」的第一個數組並打印出他們的名字？我現在看到的所有信息在Swift 3（!!!）中都不起作用。

JSON文件：

[ 
    { 
     "id" : "001", 
     "firstName" : "Mark", 
     "lastName" : "Mason", 
     "role" : "CEO", 
     "profileImageURL" : "http://developers.mub.lu/resources/profilePlaceholder.png" 
    }, 
    { 
     "teamName" : "iOS", 
     "members" : [ 
      { 
       "id" : "002", 
       "firstName" : "Olly", 
       "lastName" : "Berry", 
       "role" : "iOS Team Lead", 
       "profileImageURL" : "http://developers.mub.lu/resources/profilePlaceholder.png", 
       "teamLead" : true 
      }, 
      { 
       "id" : "003", 
       "firstName" : "James", 
       "lastName" : "Frost", 
       "role" : "iOS Developer", 
       "profileImageURL" : "http://developers.mub.lu/resources/profilePlaceholder.png" 
      }, 
      { 
       "id" : "004", 
       "firstName" : "Liam", 
       "lastName" : "Nichols", 
       "role" : "iOS Developer", 
       "profileImageURL" : "http://developers.mub.lu/resources/profilePlaceholder.png" 
      }, 
      { 
       "id" : "005", 
       "firstName" : "Chris", 
       "lastName" : "Watson", 
       "role" : "iOS Developer", 
       "profileImageURL" : "http://developers.mub.lu/resources/profilePlaceholder.png" 
      }, 
      { 
       "id" : "006", 
       "firstName" : "Richard", 
       "lastName" : "Turton", 
       "role" : "iOS Developer", 
       "profileImageURL" : "http://developers.mub.lu/resources/profilePlaceholder.png" 
      }, 
      { 
       "id" : "007", 
       "firstName" : "Matt", 
       "lastName" : "Colliss", 
       "role" : "iOS Developer", 
       "profileImageURL" : "http://developers.mub.lu/resources/profilePlaceholder.png" 
      }, 
      { 
       "id" : "008", 
       "firstName" : "David", 
       "lastName" : "Gibson", 
       "role" : "iOS Developer", 
       "profileImageURL" : "http://developers.mub.lu/resources/profilePlaceholder.png" 
      }, 
      { 
       "id" : "009", 
       "firstName" : "Tom", 
       "lastName" : "Guy", 
       "role" : "iOS Developer", 
       "profileImageURL" : "http://developers.mub.lu/resources/profilePlaceholder.png" 
      }, 
      { 
       "id" : "010", 
       "firstName" : "Rich", 
       "lastName" : "Hodgkins", 
       "role" : "iOS Developer", 
       "profileImageURL" : "http://developers.mub.lu/resources/profilePlaceholder.png" 
      } 
     ] 
    }, 
    { 
     "teamName" : "Android", 
     "members" : [{ 
       "id" : "011", 
       "firstName" : "David", 
       "lastName" : "Branton", 
       "role" : "Android Team Lead", 
       "profileImageURL" : "http://developers.mub.lu/resources/profilePlaceholder.png", 
       "teamLead" : true 
      }, 
      { 
       "id" : "012", 
       "firstName" : "Dre", 
       "lastName" : "Pilipczuk", 
       "role" : "Android Developer", 
       "profileImageURL" : "http://developers.mub.lu/resources/profilePlaceholder.png" 
      }, 
      { 
       "id" : "013", 
       "firstName" : "Ray", 
       "lastName" : "Britton", 
       "role" : "Android Developer", 
       "profileImageURL" : "http://developers.mub.lu/resources/profilePlaceholder.png" 
      }, 
      { 
       "id" : "014", 
       "firstName" : "Charly", 
       "lastName" : "Murillo", 
       "role" : "Android Developer", 
       "profileImageURL" : "http://developers.mub.lu/resources/profilePlaceholder.png" 
      } 
     ] 
    }, 
    { 
     "teamName" : "Web", 
     "members" : [{ 
       "id" : "015", 
       "firstName" : "Ryan", 
       "lastName" : "French", 
       "role" : "Web Team Lead", 
       "profileImageURL" : "http://developers.mub.lu/resources/profilePlaceholder.png", 
       "teamLead" : true 
      }, 
      { 
       "id" : "016", 
       "firstName" : "James", 
       "lastName" : "Ward", 
       "role" : "Web Developer", 
       "profileImageURL" : "http://developers.mub.lu/resources/profilePlaceholder.png" 
      }, 
      { 
       "id" : "018", 
       "firstName" : "Adam", 
       "lastName" : "Smith", 
       "role" : "Web Developer", 
       "profileImageURL" : "http://developers.mub.lu/resources/profilePlaceholder.png" 
      }, 
      { 
       "id" : "019", 
       "firstName" : "Leonard", 
       "lastName" : "Da Costa", 
       "role" : "Web Developer", 
       "profileImageURL" : "http://developers.mub.lu/resources/profilePlaceholder.png" 
      } 
     ] 
    }, 
    { 
     "teamName" : "Design", 
     "members" : [{ 
       "id" : "020", 
       "firstName" : "Hannah", 
       "lastName" : "Tempest", 
       "role" : "Design Team Lead", 
       "profileImageURL" : "http://developers.mub.lu/resources/profilePlaceholder.png", 
       "teamLead" : true 
      }, 
      { 
       "id" : "021", 
       "firstName" : "Ellis", 
       "lastName" : "Reed", 
       "role" : "Designer", 
       "profileImageURL" : "http://developers.mub.lu/resources/profilePlaceholder.png" 
      }, 
      { 
       "id" : "022", 
       "firstName" : "Pete", 
       "lastName" : "Horsham", 
       "role" : "Designer", 
       "profileImageURL" : "http://developers.mub.lu/resources/profilePlaceholder.png" 
      }, 
      { 
       "id" : "023", 
       "firstName" : "Hemel", 
       "lastName" : "Dave", 
       "role" : "Designer", 
       "profileImageURL" : "http://developers.mub.lu/resources/profilePlaceholder.png" 
      }, 
      { 
       "id" : "024", 
       "firstName" : "Hannah", 
       "lastName" : "Corke", 
       "role" : "Designer", 
       "profileImageURL" : "http://developers.mub.lu/resources/profilePlaceholder.png" 
      } 
     ] 
    } 
] 

我不斷收到錯誤「類型‘任何’無標會員」，我只是不知道該怎麼辦了。我解析了這樣的數據：

let urlString = "url of the json file" 

      let url = URL(string: urlString) 
      URLSession.shared.dataTask(with:url!, completionHandler: {(data, response, error) in 
       if error != nil { 
        print(error) 
       } else { 
        do { 

         let parsedData = try JSONSerialization.jsonObject(with: data!, options: .mutableContainers) as! NSMutableArray 
} catch let error as NSError { 
         print(error) 
        } 
       } 

      }).resume() 

但我不知道如何訪問單個數組和字典。

謝謝！

Answer 1

因爲你的數組包含的項目不是相同的格式。第一項包含CEO信息，其餘項目包含團隊信息。

您可以通過檢查目前的項目解析它們是CEO或團隊

這裏是在您解析代碼Swift3

do { 
    if let parsedData = try JSONSerialization.jsonObject(with: data!, options: .mutableContainers) as? [[String: AnyObject]] { 
     // parse data here 
     for item in parsedData { 
      if let ceoFirstName = item["firstName"] as? String { // first item is CEO info. You can get more info like id, lastName, role, profileImageURL here 
       print("CEO firstName is \(ceoFirstName)") 
      } 
      if let teamName = item["teamName"], members = item["members"] as? [[String: AnyObject]] { // rest items are teams 
       print("all members firstName from team \(teamName):") 
       for member in members { // loop for all members 
        if let firstName = member["firstName"] as? String { 
         print("firstName = \(firstName)") 
        } 
        // you can get other member info like id, lastName, role, profileImageURL, teamLead here 
       } 

      } 
     } 

    } 
} catch { 
    print(exception) 
} 

結果：

CEO firstName is Mark 
all members firstName from team iOS: 
firstName = Olly 
firstName = James 
firstName = Liam 
firstName = Chris 
firstName = Richard 
firstName = Matt 
firstName = David 
firstName = Tom 
firstName = Rich 
all members firstName from team Android: 
firstName = David 
firstName = Dre 
firstName = Ray 
firstName = Charly 
all members firstName from team Web: 
firstName = Ryan 
firstName = James 
firstName = Adam 
firstName = Leonard 
all members firstName from team Design: 
firstName = Hannah 
firstName = Ellis 
firstName = Pete 
firstName = Hemel 
firstName = Hannah 

Answer 2

let urlpath : String = "http://..." 

let url = URL(string: urlpath) 

var urlrequest = URLRequest(url: url!) 

urlrequest.httpMethod = "GET" 

let config = URLSessionConfiguration.default 
let session = URLSession(configuration: config) 

let task = session.dataTask(with: urlrequest) { (data, response, error) in 

    do { 

     guard let getResponseDic = try JSONSerialization.jsonObject(with: data!, options: []) as? [String: AnyObject] 
      else 
     { 
      print("error trying to convert data to JSON") 
      return 
     } 
     // now we have the todo, let's just print it to prove we can access it 

     print(getResponseDic as NSDictionary) 

     let dic = getResponseDic as NSDictionary 
     let msg = dic.object(forKey: "message") 

     print(dic) 
     let arrObj = dic.object(forKey: "teacherDetail") as! NSArray 
     print(arrObj) 

     // let arr = dic.value(forKey: "TeacherName")as! NSArray 

     print(((dic.value(forKey: "teacherDetail") as! NSArray).object(at: 0) as! NSDictionary).value(forKey: "TeacherName") as! String) 


     // the todo object is a dictionary 
     // so we just access the title using the "title" key 
     // so check for a title and print it if we have one 

     // print("The title is: " + todoTitle) 
    } catch { 
     print("error trying to convert data to JSON") 
     return 
    } 

} 

task.resume()