我正在尝试 JSON 解码 (Swift)

Question

struct Product: Codable {
    var id: String?
    var product: String?
    var description: String?
    var price: String?
    var feed: String?
    var quantity: String?
    var image: String?
}

'my Local JSON File. Looking at the file path and opening it locally, it seems that the JSON data is in the proper format. In my products.json file, the data is setup like this. '

{
    "products" : [
        {
            "id": "1",
            "product" : "Rus Salatası...",
            "image" : "imageURL...",
            "description" : "description...",
            "price" : "3.25",
            "feed" : "Bu menü 1 kişiliktir..",
            "quantity" : "1"
        }
    ]
}

'JSON Decode Code'

guard let  jsonFile =  Bundle.main.path(forResource: "products", ofType: "json") else { return }
guard let data = try? Data(contentsOf: URL(fileURLWithPath: jsonFile), options: []) else { return }
do {
    let plantDataSerialized = try JSONDecoder().decode(Product.self, from: data)
    print("Test: \(plantDataSerialized)")
} catch let error{
    print(error.localizedDescription)
}

'我无法获取数据。我怎样才能得到数据。 plantDataSerialized 始终为零。 '

Answer 1

你需要一个根

struct Root: Codable {
    let products: [Product]
} 
struct Product: Codable {
    let id,product,description,price,feed,quantity,image: String
}

let plantDataSerialized = try JSONDecoder().decode(Root.self, from: data)

我正在尝试 JSON 解码 (Swift)

Im trying JSON Decode (Swift)

ios

json

swift

xcode

jsondecoder