swift - 如何使用 Swift 将以下数据获取到 tableview 中？

Question

首先让我们看看json数据。

[
{
"id": "244",
"name": "PIZZAS",
"image": "",
"coupon": "1",
"icon": "",
"order": "1",
"aname": "",
"options": "2",
"subcategory": [
  {
    "id": "515",
    "name": "MARGARITA",
    "description": "Cheese and Tomato",
    "image": "",
    "icon": "",
    "coupon": "1",
    "order": "1",
    "aname": "",
    "options": "2",
    "item": [
      {
        "id": "1749",
        "name": "9 Inch Thin & Crispy Margarita",
        "description": "",
        "price": "3.40",
        "coupon": "1",
        "image": "",
        "options": "2",
        "order": "1",
        "addon": "495",
        "aname": "",
        "icon": ""
      }]
  }]
}]

我使用了 Alamofire 并通过下面的代码获得响应:

Alamofire.request(.GET, myUrl, parameters:nil , encoding: .JSON)
            .validate()
            .responseString { response in
                print("Response String: \(response.result.value)")
            }
            .responseJSON { response in
                print("Response JSON: \(response.result.value)")


                if let jsonResult = response as? Array<Dictionary<String,String>> {
                    let Name = jsonResult[0]["name"]
                    let ID = jsonResult[0]["id"]
                    let Order = jsonResult[0]["order"]

                    print("JSON:    Name: \(Name)")
                    print("JSON:  ID: \(ID)")
                    print("JSON: Order: \(Order)")

                }
            }

但是在获取响应数据后我无法获得任何值。这里我想获取所有数据，如名称、ID 和子类别 - 如何实现？

Answer 1

您遇到的问题不止一个。第一个响应的类型为 Response<Anyobject, NSError> ，这不是您正在寻找的解析对象，而是您应该使用 response.result.value正如您对日志所做的那样。其次，即使您尝试转换 response.result.value至Array<Dictionary<String,String>>它不会通过，因为在你的 json 数据中你有一个内部数组 subcategory不能转换为 Dictionary<String, String>

此代码应该适合您:

Alamofire.request(.GET, myUrl, parameters:nil , encoding: .JSON)
    .validate()
    .responseString { response in
        print("Response String: \(response.result.value)")
    }
    .responseJSON { response in
        print("Response JSON: \(response.result.value)")


        let array = response.result.value as! Array<NSDictionary>
        for item in array
        {
            let Name = item["name"]
            let ID = item["id"]
            let Order = item["order"]
            let Subcategories = item["subcategory"] as! Array<NSDictionary>
            for subCategory in Subcategories
            {
                let subId = subCategory["id"]
            }

        }
}

这是 Playground 上的结果:

干杯。