配置自定义错误页面的扩展方法如下：
publicstaticclassCustomErrorPagesExtensions{publicstaticIApplicationBuilderUseCustomErrorPages(thisIApplicationBuilder app){returnapp.UseExceptionHandler(newExceptionHandlerOptions { ExceptionHandlingPath ="/errors/500", ExceptionHandler = app.New().UseMvcWithDefaultRoute().Build() }).UseStatusCodePagesWithReExecute("/errors/{0}"); }}
显示自定义错误页面的 MVC Action 代码如下：
publicclassErrorsController:Controller{ [Route("errors/{statusCode:int}")]publicIActionResultStatusCodePage(HttpStatusCode statusCode, [FromServices]ICompositeViewEngine compositeViewEngine){varviewName = ((int)statusCode).ToString();boolviewExists = compositeViewEngine.FindView(ControllerContext, viewName,true).Success;varview = viewExists ? View(viewName) : View("Default", statusCode); view.StatusCode = (int)statusCode;returnview; }}
请问如何可以实现在发生500错误时在日志中记录对应的 url ？
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