不符合协议“可解码”和“可编码”

编程问答 2022-05-03

问题描述

嗨程序员实际上当我将我的 json 格式化为可编码时我遇到了这个错误“类型'HomeViewControler'不符合协议'可解码'和'可编码'”我看到了类似的问题，但我没有结果，我很高兴看到你的帮助谢谢

这是我的代码：

 class HomeViewController: UIViewController,UICollectionViewDataSource {

@IBOutlet weak var collectionView: UICollectionView!

var txt : String = "  "
var cid : String = "  "



override func viewDidLoad() {
    super.viewDidLoad()
    print("\n iiiiiiiiiid is \(cid)")
    
    collectionView.dataSource = self
}
struct welcomeJson: Codable {  // this is where i have this error
let userId : UserID
let isoGld,check : Bool
let image : [String]

let date,id,title,countryid,about,cityid,telephone,countryText,cityText,category,address,dateOfExpire,dateOfStart,offer,createdAt,updateAt,v : String
enum CodingKeys : String,CodingKey {
    case userId
    case isoGld
    case image
    case check
    case date
    case id = "_id"
    case title
    case countryID = "country"
    case cityID = "city"
    case telephone
    case countryText
    case cityText
    case category
    case address
    case dateOfExpire = "dateOfEx"
    case dateOfStart
    case offer
    case about
    case createdAt
    case updateAt
    case v = "__v"
}
}
struct UserID : Codable {
       let ID,name,userName,email,phone  : String
       enum CodingKeys : String,CodingKey {
           case ID = "Id"
           case name
           case userName
           case email
           case phone
       }
   }
   struct Data: Codable {
       var data : [welcomeJson]
   }
func collectionView(_ collectionView: UICollectionView,numberOfItemsInSection section: Int) -> Int {
     return 5
 }
 
 func collectionView(_ collectionView: UICollectionView,cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
    let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "OfferCollectionViewCell",for: indexPath)
    return cell
    
 }
func fetchOffer() {
    
    if let url = URL(string: "http://5.63.13.16:8080/api/product/search/getByquerys?page=1&limit=10&city=\(cid)") {
        URLSession.shared.dataTask(with: url) {data,response,error in
            if let data = data {
                let jsondec = JSONDecoder()
                do {
                    let parsedJS = try jsondec.decode(Data.self,from: data)
                    for element in parsedJS.data {
                        print("adresssssetooo begooo : \(element.address) ")
                    }
                } catch {
                    print(error)
                }
            }
    }
}

并且我也在评论中显示我有这个错误

解决方法

class Wave { final String time; final double icon; final double meteo; final double noaa; final double sg; Wave({ this.time,this.icon,this.meteo,this.noaa,this.sg,}); factory Wave.fromJson(Map<String,dynamic> json) { return Wave( time: json['time'],icon: json['icon'],meteo: json['mateo'],noaa: json['noaa'],sg: json['sg']); } } 是这样

,countryid,about,cityid,

应该换成

case countryID = "country"
case cityID = "city"
codableencodableiosiosswiftswiftswift