Question

是否有办法使用Razor页面代码来加载静态文件，就像我可以使用传统的MVC控制器一样？今天早上我已经玩了几个小时了，似乎无法找到实现这个目标的方法。任何输入都表示赞赏！

Razor Page Code Behind：

    public async void OnGetAsync()
    {
        var request = HttpContext.Request;
        var sessionId = request.Query.FirstOrDefault().Value;
        var session = await _httpService.ValidateSession(sessionId);

        if (!string.IsNullOrEmpty(session?.UserId))
        {
            var claims = new List<Claim>()
            {
                new Claim(CustomClaimTypes.UserId, session.UserId),
                new Claim(CustomClaimTypes.BuId, session.BuId),
                new Claim(CustomClaimTypes.SecurityLevel, session.SecurityLevel)
            };

            var identity = new ClaimsIdentity(claims, "TNReadyEVP");
            var principal = new ClaimsPrincipal(identity);

            await HttpContext.SignInAsync(CookieAuthenticationDefaults.AuthenticationScheme, principal,
                new AuthenticationProperties { ExpiresUtc = DateTime.Now.AddMinutes(60), IsPersistent = true, AllowRefresh = false });

            var isAuthenticated = principal.Identity.IsAuthenticated;

            Redirect("~/wwwroot/index.html");## Heading ##
        }
        else
        {
            RedirectToPage("./Error");
        }

MVC控制器

    public async Task<IActionResult> SignIn()
    {
        var sessionId = HttpContext.Request.Query.FirstOrDefault().Value;
        var session = await _httpService.ValidateSession(sessionId);

        if (!string.IsNullOrEmpty(session?.UserId))
        {
            var claims = new List<Claim>()
            {
                new Claim(CustomClaimTypes.UserId, session.UserId),
                new Claim(CustomClaimTypes.BuId, session.BuId),
                new Claim(CustomClaimTypes.SecurityLevel, session.SecurityLevel)
            };

            var identity = new ClaimsIdentity(claims, "TNReadyEVP");
            var principal = new ClaimsPrincipal(identity);

            await HttpContext.SignInAsync(CookieAuthenticationDefaults.AuthenticationScheme, principal, 
                new AuthenticationProperties { ExpiresUtc = DateTime.Now.AddMinutes(20), IsPersistent = true, AllowRefresh = false });

            var isAuthenticated = principal.Identity.IsAuthenticated;
        }
        else
        {
            return Forbid();
        }

        return View("~/wwwroot/index.html");
    }

Answer 1

首先，我想说Core 2在报告错误方面非常糟糕。有时会这样做，有时代码会失败而没有异常报告。除了Core 2很棒。

以下是答案，您将看到我更改了方法签名以返回IActionResult，从而可以使用RedirectToPage和File。

    public async Task<IActionResult> OnGetAsync()
    {
        var request = HttpContext.Request;
        var sessionId = request.Query.FirstOrDefault().Value;
        var session = await _httpService.ValidateSession(sessionId);

        if (!string.IsNullOrEmpty(sessionId))
        {
            var claims = new List<Claim>()
            {
                new Claim(CustomClaimTypes.UserId, session.UserId),
                new Claim(CustomClaimTypes.BuId, session.BuId),
                new Claim(CustomClaimTypes.SecurityLevel, session.SecurityLevel)
            };

            var identity = new ClaimsIdentity(claims, "TNReadyEVP");
            var principal = new ClaimsPrincipal(identity);

            await HttpContext.SignInAsync(CookieAuthenticationDefaults.AuthenticationScheme, principal,
                new AuthenticationProperties { ExpiresUtc = DateTime.Now.AddMinutes(60), IsPersistent = true, AllowRefresh = false });

            var isAuthenticated = principal.Identity.IsAuthenticated;

            return File("index.html", "text/html");
        }
        else
        {
            return RedirectToPage("Error");
        }
    }

Answer 2

我怀疑问题的根源是：

public async void OnGetAsync()

您正在分派尚未等待的异步操作，并且上下文将被处置-请参见cannot access a disposed object asp net identitycore和aspnet Mvc issues 7011

FIX：始终使用

 public async Task OnGetAsync()

我回想起有关报告错误的想法，而不是将头埋在沙子里。在这种情况下，ASP.NET Core 2.2无法报告该错误，这意味着在更改方法签名之前，您将遇到很多奇怪的问题。

Core 2 Razor页面OnGetAsync加载静态文件

2 个答案: