c# - ASP.NET核心: How to get original path in error page by 404 status code

Question

在我的asp.net core应用程序中，每次发生错误后，请求的地址都会更改为站点错误页面地址如何在错误页面中检索原始请求的地址？
启动.cs:

public class Startup
{
    private const string ErrorHandlingPath = "/Error";

    public void ConfigureServices(IServiceCollection services)
    {
        services.AddRazorPages();
    }

    public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
    {
        app.UseExceptionHandler(ErrorHandlingPath);

        app.UseStatusCodePagesWithReExecute(ErrorHandlingPath);;

        app.UseRouting();

        app.UseEndpoints(endpoints =>
        {
            endpoints.MapRazorPages();
        });
    }
}

错误.cshtml.cs

    public class ErrorModel : PageModel
    {
        public void OnGet()
        {
            var status = HttpContext.Response.StatusCode;//=404
            var originalPath = HttpContext.Request.Path.Value;//=Error
            var feauter = Request.HttpContext.Features.Get<IExceptionHandlerPathFeature>();//=null
            var path = feauter?.Path;//=null
        }
    }

Answer 1

据我所知，您可以使用以下代码获取原始路径:

    [ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
    public IActionResult Error()    
    {
        //var re = HttpContext.Request.Path;
        var feauter = Request.HttpContext.Features.Get<IExceptionHandlerPathFeature>();
        var path = feauter.Path;

        return View(new ErrorViewModel { RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier });
    }

结果:

更新

由于您使用了 razor 页面的状态码重新执行方法，因此您应该使用 IStatusCodeReExecuteFeature。

更多详细信息，您可以引用以下代码:

    public void OnGet()
    {

        var feauter = Request.HttpContext.Features.Get<IStatusCodeReExecuteFeature>();//=null
        var path = feauter?.OriginalPath;//=null
        RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier;
    }