如何创建自定义404页面并发送404 msg?

I know how to redirect pages with Rewrite. But when there is a 404 page how would i display my own custom 404 page (i know i can rewrite it) and say this is in fact a 404 and not just a plain rewritten page?

我知道如何用重写重定向页面。但是当有一个404页面时，我该如何显示我自己的自定义404页面(我知道我可以重写它)并说这实际上是一个404页面而不仅仅是一个简单的重写页面呢?

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How i can SET the error code instead of asking the server? if the user goes to /user/invaliduser/ i would like to send a 403 or 404 but my rewrite would send it to a valid page to display user info so i would like to know how to say doesnt exist rather then empty fields in a page.

如何设置错误代码而不是询问服务器?如果用户去/user/invaliduser/我想发送一个403或404，但是我的重写会将它发送到一个有效的页面以显示用户信息，所以我想知道如何说不存在，而不是在页面中空字段。

2 个解决方案

#1

To be more flexible then strict 404.html follow my example. In Global.asax.cs override:

比严格的404更灵活。html以我为榜样。在Global.asax。cs覆盖:

public void Application_Error(Object sender, EventArgs e)
{
        if (HttpContext.Current.Request.IsLocal) return;

        Exception ex = Server.GetLastError();
        HttpException httpEx = ex as HttpException;
        string errorUrl;
        if (httpEx != null && httpEx.GetHttpCode() == 403)
            errorUrl = "~/error/403.aspx";
        else if (httpEx != null && httpEx.GetHttpCode() == 404)
            errorUrl = "~/error/404.aspx";
        else
            errorUrl = "~/error/500.aspx";
        Server.Transfer(errorUrl);
}

For example my 404.aspx contains form to send feedback, 403.aspx - exposes more interesting items for user, and 500 sends alert to Admin.

例如我的404。aspx包含发送反馈的表单，403。aspx -为用户公开更有趣的项目，500发送警报到管理员。

#2

U can do a 404.html and redirect the 404 error in the web.config file to your own file

你可以做404。并重定向网页中的404错误。配置文件到您自己的文件

<error statusCode="404" redirect="YOURFILE.htm" />

#1