将Alamofire结果保存为变量？

本文介绍了将Alamofire结果保存为变量？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我一直在尝试找出如何将Alamofire的JSON响应的一部分另存为变量以创建if语句，而且似乎找不到解决方法。

I've been trying to find out how to save a part of a JSON response from Alamofire as a variable to make an if statement and can't seem to find how to do it.

我编写了一段代码作为示例，该问题包括以下内容：

I made a piece of code to use as an example for the question which consists of the following:

import UIKit import Alamofire class ViewController: UIViewController { override func viewDidLoad() { super.viewDidLoad() Alamofire.request("api.openweathermap/data/2.5/weather?q=London,uk&appid=44143256ee15e9c3f521ca062463dd8d").responseJSON { response in print(response.result) // result of response serialization if let JSON = response.result.value { print("JSON: \(JSON)") } } } }

我从API请求：

JSON: { base = stations; clouds = { all = 0; }; cod = 200; coord = { lat = "51.51"; lon = "-0.13"; }; dt = 1485031800; id = 2643743; main = { humidity = 83; pressure = 1026; temp = "270.54"; "temp_max" = "273.15"; "temp_min" = "267.15"; }; name = London; sys = { country = GB; id = 5091; message = "0.0038"; sunrise = 1484985141; sunset = 1485016345; type = 1; }; visibility = 7000; weather = ( { description = haze; icon = 50n; id = 721; main = Haze; } ); wind = { speed = 1; }; }

从此JSON响应中，我想保存天气说明，以便可以使用以下语句：

From this JSON response I would like to save the weather description so I could use the following statement:

if var currentWeather = sunny { return "Nice day!" } else { return "Uh-Oh, keep warm!" }

如果有人可以帮助我，我将不胜感激！如果我必须使用SwiftyJSON来简化它，那很好，我已经为此苦苦挣扎了一段时间，需要弄清楚！

If anyone could help me with this I would greatly appreciate it! If I have to use SwiftyJSON to make it easier that's fine I've just been struggling with this for a while and need to figure it out!

推荐答案

您可以在打印JSON响应之后解析结果：

You can parse your result following the printout of your JSON response:

guard let JSON = response.result.value as? [String:Any], let weather = JSON["weather"] as? [[String:Any]] else { print("Could not parse weather values") return } for element in weather { if let description = element["description"] as? String { print(description) } }

如果您想要保存结果，或者根据您描述的某种结果来做某事，您可以插入其他内容，而不仅仅是 print（description），例如：

If you wanted to save the result, or do something based on a certain result as you described, you could insert something else instead of just print(description) like:

if description == "sunny" { //do something }

让我知道这是否有意义。请记住，在Xcode控制台中，（和）的意思是数组。

Let me know if this makes sense. Keep in mind that ( and ) in the Xcode console means "Array".