ios - Alamofire 4 的状态码

Question

全部。我研究 iOS 和 alamofire。

状态码有错误

case 200...299: -> 错误代码:无法将“CountableClosedRange”类型的值转换为类型为“Int”的强制转换

如果我将其更改为 case.Success: -> Enum case 'Success' not found in type 'Int?'

有什么问题？ TT

这是编码。

override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
        let params = ["username": "ryulstory", "password": "123!"]
        var rTest = Alamofire.request(self.authLoginUrl, method: .post, parameters: params)
            .responseJSON{ response in
                print(response.request)  // original URL request
                print(response.response) // URL response
                print(response.data)     // server data
                print(response.result)   // result of response serialization

                let statusCode = response.response?.statusCode

                switch statusCode {
                case 200 ... 299 :
                    let jsonData = JSON(response.data!)
                    let token = jsonData["token"].string!
                    print(token)

                    self.keychain["token"] = token
                }
                       }

    }

Answer 1

错误具有误导性，您面临的问题是因为 response 的可选链接是可选的 statusCode 也是可选的，使用 Nil-Coalescing Operator 包装其值你们都准备好了。

let statusCode = response.response?.statusCode ?? 0

switch statusCode {
    case 200 ... 299 :
        let jsonData = JSON(response.data!)
        let token = jsonData["token"].string!
        print(token)
        self.keychain["token"] = token
}