Question

我在使用Swift获取JSON数组时遇到问题。

func getBenefitJSON() -> [AnyObject] {
        let urlString = String("https://www.kyfb.com/KYFB/includes/themes/CodeBlue/display_objects/custom/remote/webservices/services.cfc?method=getMemberBenefits")
        let url = URL(string: urlString!)
        var data = Data()
        do {
            data = try Data(contentsOf: url!)
        } catch {

        }

        print("URL Data: \(data)")

        do {
            let json = try JSONSerialization.jsonObject(with: data, options: JSONSerialization.ReadingOptions()) as! [AnyObject]
            print("JSON: \(json)")
            return json
        } catch {
            print("Could not get JSON")
            return []
        }
    }

我从网址获取数据，但返回一个空数组。我做错了什么？

URL Data: 42769 bytes
Could not get JSON

以下是JSON的回复

[{"image":"https://cdn.kyfb.com/KYFB/cache/file/70162997-E06B-E9B6-88514280CA8397CC_medium.jpg","description":"","link":"https://www.kyfb.com/insurance/insurance-products/","name":"KFB Insurance","children":[]}, ...]

以下是错误

UserInfo={NSDebugDescription=JSON text did not start with array or object and option to allow fragments not set.}

我还在jsonlint.com验证了网址的回复

URL数据为字符串：

<wddxPacket version='1.0'><header/><data><string>[{"image":"https://cdn.kyfb.com/KYFB/cache/file/70162997-E06B-E9B6-88514280CA8397CC_medium.jpg","description":"","link":"https://www.kyfb.com/insurance/insurance-products/","name":"KFB Insurance","children":[]}, ...]</string></data></wddxPacket>)

Answer 1

我测试了你的代码，如果JSON的顶层是一个数组，它就可以工作了。因此，您想要读取的JSON可能不是数组而是字典。

要阅读词典，您需要将返回类型从[AnyObject]更改为[String:AnyObject]以及此类型的所有其他匹配项。

尽管如此，我建议使用SwiftyJSON在Swift中使用JSON。

无法获取JSON数组

1 个答案: