解析JSON Swift 3
解析JSON Swift 3
提问于 2016-09-16 02:08:39
我一整天都在寻找这个问题的答案，我快要崩溃了，但是有没有人可以告诉我或者告诉我如何解析这个JSON文件，这样我就可以访问第一个“成员”数组并打印出所有成员的名字？我现在查看的所有信息在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"
}
]
}
]我一直收到错误‘类型’任何‘没有下标成员’，我只是不知道该怎么做。我对数据进行了如下解析：
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独的数组和字典。
谢谢你！！
回答 2
Stack Overflow用户
发布于 2016-09-16 09:20:30
因为您的数组包含格式不同的项。第一项包含CEO信息，其余项包含团队信息。
您可以通过检查当前项目是CEO或团队来解析它们
这是您在Swift3中的解析代码
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 = HannahStack Overflow用户
发布于 2017-05-16 18:40:54
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()页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/39517657
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