尝试快速获取天气数据-JSON OpenWeatherMap API

Question

我对于macOS应用程序的这段代码有问题。：

URLSession.shared.dataTask(with: URL(string: "https://api.openweathermap.org/data/2.5/weather?q=\(city)&appid=xxxxxxxxxxxxxxxxxxxxxxxxxxxx")!) { data, response, error in
    if let error = error {
        print("Error:\n\(error)")
    } else {
        do {
            let weather = try JSONSerialization.jsonObject(with: data!, options: .mutableContainers) as! [String: AnyObject]
            self.weatherLabel.stringValue = "Temperature \(weather["main"]!["temp"]!!)°C Humidity \(weather["main"]!["humidity"]!!)% Pressure \(weather["main"]!["pressure"]!!)hPa."
        } catch let jsonError as NSError {
            print("JSON error:\n\(jsonError.description)")
        }
    }
}.resume()

当尝试获取天气数据时，会出现错误消息：

  

Error Domain = NSURLErrorDomain代码= -1003“具有指定地址的服务器   找不到主机名。”   UserInfo = {NSUnderlyingError = 0x600000d076c0 {Error   Domain = kCFErrorDomainCFNetwork代码= -1003“（空）”   UserInfo = {_ kCFStreamErrorCodeKey = -72000，   _kCFStreamErrorDomainKey = 10}}，NSErrorFailingURLStringKey = https://api.openweathermap.org/data/2.5/weather .........

我尝试了许多不同的方法，但是都没有成功。。有人知道如何更正此功能吗？