我正在嘗試 JSON 解碼（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?
}

'我的本地 JSON 文件。 查看文件路徑並在本地打開它，似乎 JSON 數據格式正確。 在我的 products.json 文件中，數據是這樣設置的。 '

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

'JSON 解碼代碼'

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)
}

'我無法獲取數據。 我怎樣才能得到數據。 PlantDataSerialized 始終為零。 '

Answer 1

你需要一個根

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)