JSON数据未在swift3中使用Alamofire进行解析

Question

我必须使用 alamofire 解析 json 在使用 json 会话之前，它从 json 获取数据工作正常。现在我尝试使用 alamofire 解析 json。 这是使用 json 解析 json 的代码，这段代码工作正常

func auth(_ email:String,password:String) {

     var request = URLRequest(url:AppConstants.apiURLWithPathComponents("usersignin"))
        let session = URLSession.shared

        request.httpMethod = "POST"

        let bodyData = "email=\(email)&passCode=\(password)&deviceType=iOS&deviceId=\(deviceToken)"

        request.httpBody = bodyData.data(using: String.Encoding.utf8);
        let task = session.dataTask(with: request, completionHandler: { (data, response, error) in

            do {

                if data != nil {

                    if let jsonData = try JSONSerialization.jsonObject(with: data!, options: JSONSerialization.ReadingOptions.mutableContainers) as? NSDictionary {

                        errorCode = String(describing: jsonData["errorCode"]!)

                        msg = jsonData["msg"] as! String

                        print(errorCode)

                        print(jsonData)

                        if(errorCode == "1"){

                            DispatchQueue.main.async(execute: {

                                self.activityIndicator.stopAnimating()

                            })

                        } else {

                            self.name = jsonData.value(forKey: "name") as! String

                            if let kidsURLDetails = jsonData["kidsURLDetails"] as? NSArray {

                                for i in 0 ..< kidsURLDetails.count {

                                    if kidsURLDetails[i] is NSDictionary {

                                        let url = kidsURLDetails[i] as? NSDictionary

                                        self.urls.append((url?["url"]) as! String)
                                    }
                                }
                            }

                            self.serverURL = self.urls.joined(separator: ",")
                            print("ServerURL \(self.serverURL)")
                            let prefs:UserDefaults = UserDefaults.standard
                            prefs.setValue(self.name, forKey: "NAME")

                            DispatchQueue.main.async(execute: {
                                UIApplication.shared.endIgnoringInteractionEvents()
                                let controllerId = "NavID"
                                let storyboard: UIStoryboard = UIStoryboard(name: "Main", bundle: nil)
                                let initViewController: UIViewController = storyboard.instantiateViewController(withIdentifier: controllerId) as UIViewController
                                self.present(initViewController, animated: true, completion: nil)

                            })
                        }
                    }
                } else {

                }

            } catch let err as NSError {

                print("JSON Error \(err)")
            }

        })

        task.resume()
    }

在上面的代码中，我使用了传递参数的 post 方法，当我尝试在 almofire 中传递参数的 post 方法时出现错误 “Extra argument 'method' in call”，用户名和密码来自文本字段，因此在输入电子邮件和密码后，我使用 post 方法传递了参数。

这是我将在 alamofire json 解析中实现的代码

 var request = URLRequest(url:AppConstants.apiURLWithPathComponents("usersignin"))


        let bodyData = "email=\(username)&passCode=\(passcode)&deviceType=iOS&deviceId=123456"

        let deviceId = "1234"

        let params: [String: Any] = ["email": username, "passCode": passwordstring, "deviceType": "IOS","deviceId":deviceId]
        Alamofire.request(request, method: .post, parameters: params, encoding: JSONEncoding.default, headers: nil)
            .responseJSON { response in

                print(response.result.value as Any)  }

如果我可以尝试这段代码工作

Alamofire.request("http://www.kids.com/rk/api/usersignin?email=demo@kidsapp.com&passCode=123456&deviceType=&deviceId=", method: .post, parameters: nil, encoding: JSONEncoding.default, headers: nil)
            .responseJSON { response in

                print(response.result.value as Any)          }

如何使用 alamofire 解析 json post 方法传递参数。我在哪里做错了请帮助我

Answer 1

您在调用的 1 个参数中传递了错误的类型，它应该是 URLConvertible（字符串或 URL）而不是 URLRequest。试试下面的代码。

let params: [String: Any] = ["email": username, "passCode": passwordstring, "deviceType": "IOS","deviceId":deviceId]
let url = URL(string: "http://www.kids.com/rk/api/usersignin")!
Alamofire.request(url, method: .post, parameters: params, encoding: JSONEncoding.default, headers: nil)
    .responseJSON { response in

}

____________编辑___________

这里 header 是发布请求标头（如果有）或无

let params: [String: Any] = ["email": username, "passCode": passwordstring, "deviceType": "IOS","deviceId":deviceId]

let urlString = "http://www.kids.com/rk/api/usersignin"
guard let url = URL(string: urlString), var request = try? URLRequest(url: url, method: .post, headers: header) else{
    //
    return
}

request.httpBody = params.map{ "\($0)=\($1)" }.joined(separator: "&").data(using: .utf8)
Alamofire.request(request).responseJSON { response in

}

Answer 2

如果您需要在 url 中通过 post 请求发送参数，您应该使用 URLEncoding.default 编码而不是 JSONEncoding.default。当您需要将 JSON 数据作为内容类型为 application/json 的正文发送时，使用 JSONEncoding。

更改您的代码，如：

Alamofire.request(url, method: .post, parameters: params, encoding: URLEncoding.default, headers: nil).responseJSON { response in
    print(response.result.value as Any)  
}

或者您可以删除编码参数，因为URLEncoding是Alamofire的默认编码。

Answer 3

 // URL
    let urlString = “URL_Here”

    var params = [String: Any]()

    //Contruct your params
    params = ["email": username, "passCode": passwordstring, "deviceType": "IOS","deviceId":deviceId]

    // Request
    Alamofire.request(urlString, method: .post, parameters: params, encoding: JSONEncoding.default, headers: nil)
        .validate(statusCode: 200..<300)
        .responseJSON { response in
            if (response.result.error == nil) {
              let value = response.result.value
                print(value)
            }
            else {
                let errorString = response.result.error
                print(errorString)
            }
    }