需要帮助解析嵌套的JSON数据

问题描述

我需要解析此JSON的帮助

{
  "products_and_categories" : {
    "new" : [
      {
        "id" : 173577,"image_url" : "\/\/assets.supremenewyork.com\/193786\/ca\/tMUMOnomKJI.jpg","name" : "Penguins Hooded Fleece Jacket","price" : 19800,"sale_price" : 0,"image_url_hi" : "\/\/assets.supremenewyork.com\/193786\/rc\/tMUMOnomKJI.jpg","new_item" : true,"position" : 4,"category_name" : "Jackets"
      },{
        "id" : 173581,"image_url" : "\/\/assets.supremenewyork.com\/193727\/ca\/ywdDy1mQ51Q.jpg","name" : "Side logo Track Jacket ","price" : 15800,"image_url_hi" : "\/\/assets.supremenewyork.com\/193727\/rc\/ywdDy1mQ51Q.jpg","position" : 3,"category_name" : "Jackets"
      }
    ]
  }
}

我已经制作了这个结构来保存已解析的值

var modelsArray: [Products] = Array() //is Products the right one for the array?

struct Products: Codable {
    let products: Categories

    enum CodingKeys: String,CodingKey {
        case products = "products_and_categories"
    }
}

struct Categories: Codable {
    let new: [New]
}

struct New: Codable {
    let id: Int
    let name: String
    let price: Int
    let category: String
    let image: String

    enum CodingKeys: String,CodingKey {
        case id
        case name,price
        case category = "category_name"
        case image = "image_url_hi"
    }
}

let url = URL(string: "https://www.supremenewyork.com/shop.json")!
let request = URLRequest(url: url)
let session = URLSession.shared
session.dataTask(with: request) { (data,response,error) in
   if data = data {
// Having trouble with what to put here to append id,name,price,category,image for tableview
   }


}.resume()

但是现在我被困住了，我无法将其转换为请求以追加我需要的数据。本质上，我希望能够将ID，名称，价格，类别，图像放入表格视图单元格中

解决方法

正如我可能假设的那样，您必须使用new array将数据加载到tableView中。因此，您需要定义自己的modelsArray，

var modelsArray: [New] = Array()

然后像这样解析JSON data，

session.dataTask(with: request) { (data,response,error) in
    if let data = data {
        do {
            let response = try JSONDecoder().decode(Products.self,from: data)
            modelsArray = response.products.new
            //reload your tableView here...
        } catch {
            print(error)
        }
    }
}.resume()