使用swiftyJSON在Swift 2.0中解析JSON时获取空值

Question

I'm getting a null value when I try to parse json from a url. What am I missing, or what should I be implementing to simply load a json value and put inside of a UICollectionView ?

This is json I get from the web service. I have validated it with a validation tool and it is correct:

{
    "status": 1,
    "count": 72,
    "data": [
        {
            "id": 818,
            "name": "1. product",
            "price": "155.00"
        },
        {
            "id": 812,
            "name": "2. product",
            "price": "62.00"
        },
       {
            "id": 26,
            "name": "3. product",
            "price": "213.00"
        },
       {
            "id": 657,
            "name": "4. product",
            "price": "21.00"
        },
       {
            "id": 347,
            "name": "5. product",
            "price": "57.00"
        }

I need to get the name and price values from the above json.

This is the swiftyJSON code block called in viewDidLoad . I suspect the problem is here, but I'm not sure.

let json = JSON(data: products)
if let productName = json["data"][0]["name"].string {
    print("Product: \(productName)")
}

Answer 1

You could simply avoid null fields in JSON by overriding init function in your model class. Depend of your mapping data of course. If you will get JSON null object, this constructor will simply replace null to default value

For example:

override init() {
   mapField1 = "" // string value
   mapField2 = 0 // number value
}

About ur code. Where did you take 0 key in your JSON? It's only json["data.name"] or json["data.price"]