示例如何使用URLQueryItem请求。

func getRequest(params: [String:String]) {

    let urlComp = NSURLComponents(string: "https://my-side.com/data")!

    var items = [URLQueryItem]()

    for (key,value) in params {
        items.append(URLQueryItem(name: key, value: value))
    }

    items = items.filter{!$0.name.isEmpty}

    if !items.isEmpty {
      urlComp.queryItems = items
    }

    var urlRequest = URLRequest(url: urlComp.url!)
    urlRequest.httpMethod = "GET"
    let config = URLSessionConfiguration.default
    let session = URLSession(configuration: config)

    let task = session.dataTask(with: urlRequest, completionHandler: { (data, response, error) in
    })
    task.resume()
}


getRequest(params: ["token": "AS7F87SAD84889AD"])