在使用Asp.Net Core Mvc时 404处理整理如下
一、自带404状态处理
1.控制器视图子弹404视图 NotFoundResult，NotFoundObjectResult
???????// ???????// 摘要: ???????// ????Creates an Microsoft.AspNetCore.Mvc.NotFoundObjectResult that produces a Microsoft.AspNetCore.Http.StatusCodes.Status404NotFound ???????// ????response. ???????// ???????// 返回结果: ???????// ????The created Microsoft.AspNetCore.Mvc.NotFoundObjectResult for the response. ???????[NonAction] ???????public virtual NotFoundObjectResult NotFound(object value); ???????// ???????// 摘要: ???????// ????Creates an Microsoft.AspNetCore.Mvc.NotFoundResult that produces a Microsoft.AspNetCore.Http.StatusCodes.Status404NotFound ???????// ????response. ???????// ???????// 返回结果: ???????// ????The created Microsoft.AspNetCore.Mvc.NotFoundResult for the response. ???????[NonAction] ???????public virtual NotFoundResult NotFound();
2.当前操作返回404状态，或者返回404的一句话提示。
二、自定义404页面显示
在网站中，为了增强提前，通常使用自定义404页面
1.自定义404视图，在控制器中返回
???/// <summary> ???/// 定义404视图 ???/// </summary> ???public class NotFoundViewResult : ViewResult ???{ ???????public NotFoundViewResult(string viewName) ???????{ ???????????ViewName = viewName; ???????????StatusCode = (int)HttpStatusCode.NotFound; ???????} ???}2.在控制器中返回使用
???????public IActionResult Index() ???????{ ???????????//返回404页面 ???????????return new NotFoundViewResult("~/views/Error/code_404.cshtml"); ???????????return View(); ???????}3.呈现结果：
三、更多错误处理
更多：
Asp.Net Core异常处理整理
.Net Core邮件发送之MailKit
Asp.Net Core中Json序列化处理整理
Asp.Net Core 404处理
原文地址：https://www.cnblogs.com/tianma3798/p/10122910.html