代码之家 › 专栏 › 技术社区 › Tom Rushton

启动时路由错误。当ASP出现404或500错误时,cs不会重定向到控制器。NET核心MVC

error-handling asp.net-mvc c#

Tom Rushton · 技术社区 · 2 年前

我想要我的创业公司。cs类在发生404或500错误时重定向到我的错误控制器。

创业。反恐精英

public void Configure(IApplicationBuilder app, IWebHostEnvironment env, IHttpContextAccessor accessor)
  {
     if (env.IsDevelopment())
     {
        app.UseDeveloperExceptionPage();
        app.UseExceptionHandler("/ErrorPages/500");
     }
     app.UseRouting();
     app.UseAuthentication();
     app.UseAuthorization();
     app.UseIPRestrictionService();
     app.Use(async (content, next) =>
     {
        await next();
        if (content.Response.StatusCode == 404 && !content.Response.HasStarted)
        {
            content.Request.Path = "/ErrorPages/404";
            await next();
        }
        if (content.Response.StatusCode == 500)
        {
            content.Request.Path = "/500";
            await next();
        }
     });
     app.UseHttpsRedirection();
     app.UseStaticFiles();
     app.UseEndpoints(endpoints =>
     {
        endpoints.MapContent();
        endpoints.MapControllers();
     });


     ContentExtensions.SetHttpContextAccessor(accessor);
     VisitorGroupManager.SetHttpContextAccessor(accessor);
     PageExtensions.SetHttpContextAccessor(accessor);
     //IsAuthenticatedCriterion.SetHttpContextAccessor(accessor);
  }

但是当内容。要求路径是在检测到404或500状态代码时设置的,路径在URL中不会更改。如何让它重定向到我的控制器,这样我就可以应用我的逻辑。

错误控制器。反恐精英

    [Route("ErrorPages")]
class ErrorController : Controller
{        
    [Route("500")]
    public IActionResult AppError()
    {
        return View();
    }

    [Route("404")]
    public IActionResult PageNotFound()
    {
        return View("~/Views/404.cshtml");
    }
}

0 回复 | 直到 2 年前

kyenry 2 年前

为此,你需要一个错误控制器

在你的 ErrorController.cs 文件

public class ErrorController : Controller
{
    private readonly ILogger<ErrorController> logger;

    public ErrorController(ILogger<ErrorController> logger)
    {
        this.logger = logger;
    }

    [Route("Error/{statusCode}")]
    public IActionResult HttpStatusCodeHandler(int statusCode)
    {
        var viewToReturn = string.empty;
        var statusCodeResult = HttpContext.Features.Get<IStatusCodeReExecuteFeature>();
        switch (statusCode)
        {
            case 404:
                ViewBag.ErrorMessage = "Sorry the resource you requested could not be found";
                logger.LogWarning($"404 Error Occured. Path = {statusCodeResult.OriginalPath}" + $"and QueryString = {statusCodeResult.OriginalQueryString}");
                viewToReturn = nameof(Notfound);
                break;
        }

        return View(viewToReturn ?? "defaultUnInterceptedErrorView");
    }

    [Route("Error")]
    [AllowAnonymous]
    public IActionResult Error()
    {
        var exceptionDetails = HttpContext.Features.Get<IExceptionHandlerPathFeature>();
        logger.LogError($"The Path {exceptionDetails.Path} threw an exception" + $"{exceptionDetails.Error}");
        return View("Error");
    }
}

在你的创业公司。cs文件

if (env.IsDevelopment())
        {
            app.UseDeveloperExceptionPage();
        }
        else
        {
            app.UseExceptionHandler("/Error");
            app.UseStatusCodePagesWithReExecute("/Error/{0}");
        }

你也可以选择 NotFound.cshtml 视图,您可以从中了解 ViewBag.ErrorMessage (注意:ASP.NET Core始终在中搜索Notfound操作。) AccountController.cs 但你可以在创业时改变这一点。(政务司司长)

然后,您还可以继续case switch语句,以适应您计划拦截的所有状态代码错误