我无法从URL提取json数据
我尝试了Alamofire,Swiftyjson和JSONDecoder,但没有得到任何数据
这是我的json url结果;
{
"Firmalar": {
"Firma": [
{
"SicilNo": "382",
"FirmaAdi": "AYSAN PAMUK YAĞ VE YEM SANAYİ TİCARET ANONİM ŞİRKETİ",
"Sektor": "GIDA ÜRÜNLERİ İMALATI ",
"AcikAdres": "ACIDEREOSB MAHALLESİ FUZULİ CADDESİ NO: 2 ",
"TelefonNo": "(322)394-5029",
"FaksNo": "(322)394-4929",
"EPosta": "mahmutkulak.aysanas@gmail.com",
"WebAdresi": "www.aysanpamuk.com",
"WebDurumu": "1",
"TanitimFilmTR": "",
"TanitimFilmEN": "",
"TanitimBrosurTR": "",
"TanitimBrosurEN": ""
}, {
"SicilNo": "1127",
"FirmaAdi": "EKOVAR GERİ DÖNÜŞÜM MAKİNA İNŞAAT SAN. VE TİC. LTD. ŞTİ.",
"Sektor": "DİĞER İMALATLAR",
"AcikAdres": "ACIDEREOSB MAHALLESİ CUMHURİYET BULVARI NO: 26 ",
"TelefonNo": "(312)442-1305",
"FaksNo": "(312)442-1306",
"EPosta": "mesut@ekovar.com.tr",
"WebAdresi": "www.ekovar.com.tr",
"WebDurumu": "1",
"TanitimFilmTR": "",
"TanitimFilmEN": "",
"TanitimBrosurTR": "",
"TanitimBrosurEN": ""
}
]
}
}
这是我的结构;
struct Firmalar: Codable {
let Firma: [FirmaModel]?
}
struct FirmaModel: Codable{
let SicilNo:String?
let FirmaAdi:String?
let Sektor:String?
let AcikAdres:String?
let TelefonNo:String?
let FaksNo:String?
let EPosta:String?
let WebAdresi:String?
let TanitimFilmTR:String?
let TanitimBrosurTR:String?
enum CodingKeys: String, CodingKey {
case SicilNo="SicilNo", FirmaAdi="FirmaAdi", Sektor="Sektor", AcikAdres="AcikAdres", TelefonNo="TelefonNo", FaksNo="FaksNo", EPosta="EPosta", WebAdresi="WebAdresi", TanitimFilmTR="TanitimFilmTR", TanitimBrosurTR="TanitimBrosurTR"
}
}
这是我的fetchData代码;
var firmalar = [Firmalar]()
let searchController = UISearchController()
override func viewDidLoad() {
super.viewDidLoad()
fetchFirmaData()
}
func fetchFirmaData(){
let url = URL(string: "http://mobileapi.adanaorganize.org.tr/v1/firmalar")
guard let downloadURL = url else {return}
URLSession.shared.dataTask(with: downloadURL) { (data, response, error) in
do{
if error == nil {
self.firmalar = try JSONDecoder().decode([Firmalar].self, from: data!)
DispatchQueue.main.async {
print(self.firmalar)
self.tableView.reloadData()
}
}
} catch {
print("Error While Geting Json Data: " + error.localizedDescription)
}
}.resume()
}
所以我的问题是如何创建一个数组。使用swift。这是我的快速代码。我收到此错误消息:由于数据格式不正确,因此无法读取。
答案 0 :(得分:0)
首先从不打印error.localizedDescription
,它返回一个通用的,毫无意义的错误消息。始终仅打印error
。
真正的错误是
打算对Array进行解码,但是找到了一个字典
错误非常明显。查看JSON。根对象是字典,键Firma
的值是您要查找的数组。
您必须为根对象添加另一个结构并对其进行解码
struct Root: Codable {
let firmalar: Firmalar
private enum CodingKeys: String, CodingKey { case firmalar = "Firmalar" }
}
struct Firmalar: Codable {
let firma: [FirmaModel]
private enum CodingKeys: String, CodingKey { case firma = "Firma" }
}
struct FirmaModel: Codable { ...
声明数据源数组
var firmaModel = [FirmaModel]()
并解码JSON
if error == nil {
let result = try JSONDecoder().decode(Root.self, from: data!)
self.firmaModel = result.firmalar.firma
将所有结构成员声明为非可选成员,并使用CodingKeys
映射的小写成员,就像我建议的结构一样。
答案 1 :(得分:0)
您没有Firmalar
数组,但是只有一个值,并且该值本身必须是单独的根级别结构的一部分,因此请更改
self.firmalar = try JSONDecoder().decode([Firmalar].self, from: data!)
到
let result = try JSONDecoder().decode(Response.self, from: data!)
self.firmalar = result.Firmalar.Firma
当然,您需要将firmalar
的声明更改为
var firmalar = [FirmaModel]()
并包含根级结构
struct Response: Decodable {
let Firmalar: Firmalar
}