如何从url中读取json，输出到应用程序屏幕？SwiftUI

import SwiftUI

struct ContentView: View {
    @State private var jsonData = ""
    
    var body: some View {
        VStack {
            Text(jsonData)
                .padding()
            
            Button("Load JSON") {
                fetchJSON(from: "https://example.com/data.json")
            }
            .padding()
        }
    }
    
    func fetchJSON(from urlString: String) {
        guard let url = URL(string: urlString) else {
            print("Invalid URL")
            return
        }
        
        URLSession.shared.dataTask(with: url) { (data, response, error) in
            if let error = error {
                print("Error: \(error.localizedDescription)")
                return
            }
            
            guard let data = data else {
                print("No data received")
                return
            }
            
            do {
                let json = try JSONSerialization.jsonObject(with: data, options: [])
                let jsonData = try JSONSerialization.data(withJSONObject: json, options: .prettyPrinted)
                let jsonString = String(data: jsonData, encoding: .utf8)
                
                DispatchQueue.main.async {
                    self.jsonData = jsonString ?? ""
                }
            } catch {
                print("Error parsing JSON: \(error.localizedDescription)")
            }
        }.resume()
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}