从ASP.NET MVC中的Url获取Html

using System.Net.Http;
using System.Threading.Tasks;

public async Task<string> GetHtmlFromUrl(string url)
{
    using var httpClient = new HttpClient();
    var response = await httpClient.GetAsync(url);
    response.EnsureSuccessStatusCode();
    return await response.Content.ReadAsStringAsync();
}

public async Task<ActionResult> Index()
{
    string url = "https://www.example.com";
    string html = await GetHtmlFromUrl(url);
    return View(html);
}