如何在swift中获取响应JSON

import Foundation

func fetchData() {
    let urlString = "https://api.example.com/data"
    guard let url = URL(string: urlString) else {
        print("Invalid URL")
        return
    }

    let task = URLSession.shared.dataTask(with: url) { data, response, error in
        if let error = error {
            print("Error fetching data: \(error.localizedDescription)")
            return
        }

        guard let data = data else {
            print("No data received")
            return
        }

        do {
            let jsonData = try JSONSerialization.jsonObject(with: data, options: [])
            if let json = jsonData as? [String: Any] {
                print("JSON data: \(json)")
            } else {
                print("Invalid JSON format")
            }
        } catch {
            print("Error parsing JSON: \(error.localizedDescription)")
        }
    }

    task.resume()
}

import Alamofire
import SwiftyJSON

func fetchData() {
    let urlString = "https://api.example.com/data"

    Alamofire.request(urlString).responseJSON { response in
        switch response.result {
        case .success(let value):
            if let json = JSON(value).dictionary {
                print("JSON data: \(json)")
            } else {
                print("Invalid JSON format")
            }
        case .failure(let error):
            print("Error fetching data: \(error.localizedDescription)")
        }
    }
}