在文件系统中获取ASP.NET MVC站点的路径

string physicalPath = Server.MapPath("~/");

string physicalPath = System.Web.Hosting.HostingEnvironment.MapPath("~/");

public class HomeController : Controller
{
    private readonly IHostingEnvironment _hostingEnvironment;

    public HomeController(IHostingEnvironment hostingEnvironment)
    {
        _hostingEnvironment = hostingEnvironment;
    }

    public IActionResult Index()
    {
        string physicalPath = _hostingEnvironment.ContentRootPath;
        return View();
    }
}

public class HomeController : Controller
{
    private readonly IWebHostEnvironment _webHostEnvironment;

    public HomeController(IWebHostEnvironment webHostEnvironment)
    {
        _webHostEnvironment = webHostEnvironment;
    }

    public IActionResult Index()
    {
        string physicalPath = _webHostEnvironment.ContentRootPath;
        return View();
    }
}