如何用RazorPages路由替换MVC HomeController/Index重定向?

我相信您可以将控制器转换为创建索引页的页模型 Pages/IndexModel 做同样的重定向。

public class IndexModel : PageModel {
    UserManager<WebUser> _userManager;

    public IndexModel(UserManager<WebUser> _userManager) {
        this._userManager = _userManager;
    }

    public async Task<IActionResult> OnGetAsync() {
        var user = await _userManager.GetUserAsync(User);
        if (user == null) {
            return RedirectToPage("/Account/Login", new { area = "WebUserIdentity" });
        }
        return RedirectToPage("/Index", new { area = "Downloads" });
    }
}

对于重定向到不同的页面,我建议您尝试 middleware

app.Use(async (context, next) =>
        {
            // Do work that doesn't write to the Response.
            if (!context.User.Identity.IsAuthenticated && context.Request.Path != "/WebUserIdentity/Account/Login")
            {
                context.Response.Redirect("/WebUserIdentity/Account/Login");
            }
            else if (context.Request.Path == "/")
            {
                context.Response.Redirect("/Downloads/Index");
            }
            await next.Invoke();
            // Do logging or other work that doesn't write to the Response.
        });

        app.UseMvc();