这是json代码:
{
"status":"success",
"data":
[
{"id":"3",
"city_name":"Delhi",
"city_image":"delhi.png"},
{"id":"4",
"city_name":"Mumbai",
"city_image":"tickmark.png"}
]
}
我的Swift代码:
struct city: Decodable{
let status : String
let id: String
let data : String
let city_name: String
let city_image: String
}
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
let jsonUrl = "http://parking.onlinekiduniya.org/api/cityList.php"
let url = URL(string: jsonUrl)
URLSession.shared.dataTask(with: url!) {(data, response, error) in
do {
let cities = try JSONDecoder().decode([city].self, from: data!)
for city in cities {
print(city.id)
}
}
catch {
print("we got error")
}
}.resume()
}
}
答案 0 :(得分:1)
替换
let cities = try JSONDecoder().decode([city].self, from: data!)
使用
let root = try JSONDecoder().decode(Root.self, from: data!)
let cities = root.data
cities.forEach {
print($0.id)
}
struct Root: Codable {
let status: String
let data: [City]
}
struct City: Codable {
let id, cityName, cityImage: String // you can use snake case also
enum CodingKeys: String, CodingKey {
case id
case cityName = "city_name"
case cityImage = "city_image"
}
}
您的根是字典,而不是数组