我制作了一个简单的api来测试apiary，并为响应创建了一个结构。但是当进行调用时，由于某种原因我试图使其符合我的结构，所以我没有得到主体，而只得到了头。我想获得小联盟球队并将其放入此结构，然后打印出来。
API链接:
https://littleleaguers.docs.apiary.io/#reference/0/little-league-teams/list-all-little-league-teams
响应主体:
{
"name": "Little League Teams"
"teams": [
{
"id": 1,
"team": "Yankees",
"players": [
{
"id": 1,
"position": 1,
"player": null
},
{
"id": 2,
"position": 2,
"player": {
"name": "John",
"last": "Johnson",
"jersey": 5
"signed_up": "2018-07-16T08:40:51.620Z"
}
},
{
"id": 3,
"position": 3,
"player": null
},
{
"id": 4,
"position": 4,
"player": null
},
{
"id": 5,
"position": 5,
"player": {
"name": "Blake",
"last": "Smith",
"jersey": 28
"signed_up": "2018-07-14T18:23:23.000Z"
}
},
{
"id": 6,
"position": 6,
"player": null
},
{
"id": 7,
"position": 7,
"player": null
},
{
"id": 8,
"position": 8,
"player": null
},
{
"id": 9,
"position": 9,
"player": null
},
{
"id": 10,
"position": 10,
"player": null
},
{
"id": 11,
"position": 11,
"player": null
},
{
"id": 12,
"position": 12,
"player": null
}
]
},
{
"id": 2,
"team": "Red Sox",
"players": [
{
"id": 13,
"position": 1,
"player": null
},
{
"id": 14,
"position": 2,
"player": null
},
{
"id": 15,
"position": 3,
"player": null
},
{
"id": 16,
"position": 4,
"player": null
},
{
"id": 17,
"position": 5,
"player": null
},
{
"id": 18,
"position": 6,
"player": null
},
{
"id": 19,
"position": 7,
"player": null
}
]
}
]
}
League.swift:
struct League: Decodable {
var name: String
var teams: [Teams]
}
Team.swift:
struct Team: Decodable {
var id: Int
var team: String
var players: [Players]
}
玩家迅捷:
struct Players: Decodable {
var id: Int
var position: Int
var player: player?
}
struct player: Decodable {
var name: String
var last: String
var jersey: Int
var signed_up: String
}
然后，我有一个类来检索此数据:
GetData.swift:
class GetData{
func getLeague(){
let url = URL(string: "https://private-4df2e8-littleleaguers.apiary-mock.com/league")!
let request = URLRequest(url: url)
let task = URLSession.shared.dataTask(with: request) { data, response, error in
if let response = response {
print("RESPONSE \(response)")
/* if let data = data, let body = String(data: data, encoding: .utf8) {
print("BODY \(body)")
// this line prints the body
}*/
if let data = data, let dataObtained = try? JSONDecoder().decode(League.self, from: data){
print("DATA \(dataObtained).....")// this line does not print
}
} else {
print(error ?? "Unknown error")
}
}
task.resume()
}
}
然后，通过以下方式在ViewController.swift中将其称为:
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
let getData = GetData()
getData.getLeague()
}
控制台中唯一显示的内容是:
RESPONSE <NSHTTPURLResponse: 0x6000008e5e80> { URL: https://private-4df2e8-littleleaguers.apiary-mock.com/league } { Status Code: 200, Headers {
"Access-Control-Allow-Origin" = (
"*"
);
"Content-Encoding" = (
gzip
);
"Content-Length" = (
427
);
"Content-Type" = (
"application/json"
);
Date = (
"Fri, 06 Mar 2020 13:35:40 GMT"
);
Vary = (
"Accept-Encoding"
);
"access-control-allow-methods" = (
"OPTIONS,GET,HEAD,POST,PUT,DELETE,TRACE,CONNECT"
);
"access-control-max-age" = (
10
);
"x-apiary-ratelimit-limit" = (
120
);
"x-apiary-ratelimit-remaining" = (
119
);
"x-apiary-transaction-id" = (
5e6251ac6b105b008135d67a
);
} }
最佳答案
修复返回的JSON，这是错误的，您的struct模型中的所有内容都可以在online swift playground上查看:
import Foundation
let json = """
{
"name": "Little League Teams",
"teams": [
{
"id": 1,
"team": "Yankees",
"players": [
{
"id": 1,
"position": 1,
"player": null
},
{
"id": 2,
"position": 2,
"player": {
"name": "John",
"last": "Johnson",
"jersey": 5,
"signed_up": "2018-07-16T08:40:51.620Z"
}
},
{
"id": 3,
"position": 3,
"player": null
},
{
"id": 4,
"position": 4,
"player": null
},
{
"id": 5,
"position": 5,
"player": {
"name": "Blake",
"last": "Smith",
"jersey": 28,
"signed_up": "2018-07-14T18:23:23.000Z"
}
},
{
"id": 6,
"position": 6,
"player": null
},
{
"id": 7,
"position": 7,
"player": null
},
{
"id": 8,
"position": 8,
"player": null
},
{
"id": 9,
"position": 9,
"player": null
},
{
"id": 10,
"position": 10,
"player": null
},
{
"id": 11,
"position": 11,
"player": null
},
{
"id": 12,
"position": 12,
"player": null
}
]
},
{
"id": 2,
"team": "Red Sox",
"players": [
{
"id": 13,
"position": 1,
"player": null
},
{
"id": 14,
"position": 2,
"player": null
},
{
"id": 15,
"position": 3,
"player": null
},
{
"id": 16,
"position": 4,
"player": null
},
{
"id": 17,
"position": 5,
"player": null
},
{
"id": 18,
"position": 6,
"player": null
},
{
"id": 19,
"position": 7,
"player": null
}
]
}
]
}
""".data(using: .utf8)!
struct player: Decodable {
var name: String
var last: String
var jersey: Int
var signed_up: String
}
struct Players: Decodable {
var id: Int
var position: Int
var player: player?
}
struct Team: Decodable {
var id: Int
var team: String
var players: [Players]
}
struct League: Decodable {
var name: String
var teams: [Team]
}
if let results = try? JSONDecoder().decode(League.self, from: json) {
print(results)
}
输出:
联赛(名称:“小联盟球队”，球队:[SwiftPlayground.Team(id:
1，团队:“洋基”，球员:[SwiftPlayground.Players(id:1，位置:
1，玩家:无)，SwiftPlayground.Players(id:2，位置:2，玩家:
可选(SwiftPlayground.player(name:“John”，最后:“Johnson”，球衣:
5，signed_up:“2018-07-16T08:40:51.620Z”))))，
SwiftPlayground.Players(id:3，position:3，player:nil)，
SwiftPlayground.Players(id:4，位置:4，玩家:无)，
SwiftPlayground.Players(id:5，位置:5，玩家:
可选(SwiftPlayground.player(名称:“布雷克”，最后一个:“史密斯”，球衣:
28，signed_up:“2018-07-14T18:23:23.000Z”))))，
SwiftPlayground.Players(id:6，位置:6，玩家:无)，
SwiftPlayground.Players(id:7，position:7，player:nil)，
SwiftPlayground.Players(id:8，位置:8，玩家:无)，
SwiftPlayground.Players(id:9，position:9，player:nil)，
SwiftPlayground.Players(id:10，position:10，player:nil)，
SwiftPlayground.Players(id:11，position:11，player:nil)，
SwiftPlayground.Players(id:12，position:12，player:nil)])，
SwiftPlayground.Team(id:2，球队:“Red Sox”，球员:
[SwiftPlayground.Players(id:13，position:1，player:nil)，
SwiftPlayground.Players(id:14，position:2，player:nil)，
SwiftPlayground.Players(id:15，位置:3，玩家:nil)，
SwiftPlayground.Players(id:16，位置:4，玩家:无)，
SwiftPlayground.Players(id:17，position:5，player:nil)，
SwiftPlayground.Players(id:18，position:6，player:nil)，
SwiftPlayground.Players(id:19，position:7，player:nil)])]))