如何在没有重定向的情况下在ASP.NET中显示自定义404页面？

When a request is 404 in ASP.NET on IIS 7 i want a custom error page to be displayed. The URL in the address bar should not change, so no redirect. How can i do this?

当IIS 7上的ASP.NET中的请求为404时,我希望显示自定义错误页面。地址栏中的URL不应更改,因此不会重定向。我怎样才能做到这一点?

4 个解决方案

#1

In your application's OnError event you can test for HttpExceptions with a status code of 404, and then do a Server.Transfer to your custom 404 page, instead of a Response.Redirect. Have a look at http://blog.dmbcllc.com/2009/03/02/aspnet-application_error-detecting-404s/

在应用程序的OnError事件中,您可以测试状态代码为404的HttpExceptions,然后执行Server.Transfer到您的自定义404页面,而不是Response.Redirect。看看http://blog.dmbcllc.com/2009/03/02/aspnet-application_error-detecting-404s/

#2

As a general ASP.NET solution, in the customErrors section in the web.config, add the redirectMode="ResponseRewrite" attribute.

作为一般的ASP.NET解决方案,在web.config的customErrors部分中,添加redirectMode =“ResponseRewrite”属性。

<customErrors mode="On" redirectMode="ResponseRewrite">
  <error statusCode="404" redirect="/404.aspx" />
</customErrors>

Note: this internally uses a Server.Transfer() so the redirect must be an actual file on the webserver. It can't be an MVC route.

注意:这在内部使用Server.Transfer(),因此重定向必须是Web服务器上的实际文件。它不能是MVC路线。

#3

I use an http module to handle this. It works for other types of errors, not just 404s, and allows you to continue using the custom errors web.config section to configure which page is displayed.

我使用http模块来处理这个问题。它适用于其他类型的错误,而不仅仅是404,并允许您继续使用自定义错误web.config部分来配置显示的页面。

public class CustomErrorsTransferModule : IHttpModule
{
    public void Init(HttpApplication context)
    {
        context.Error += Application_Error;
    }

    public void Dispose()  {  }

    private void Application_Error(object sender, EventArgs e)
    {
        var error = Server.GetLastError();
        var httpException = error as HttpException;
        if (httpException == null)
            return;

        var section = ConfigurationManager.GetSection("system.web/customErrors") as CustomErrorsSection;
        if (section == null)
            return;

        if (!AreCustomErrorsEnabledForCurrentRequest(section))
            return;

        var statusCode = httpException.GetHttpCode();
        var customError = section.Errors[statusCode.ToString()];

        Response.Clear();
        Response.StatusCode = statusCode;

        if (customError != null)
            Server.Transfer(customError.Redirect);
        else if (!string.IsNullOrEmpty(section.DefaultRedirect))
            Server.Transfer(section.DefaultRedirect);
    }

    private bool AreCustomErrorsEnabledForCurrentRequest(CustomErrorsSection section)
    {
        return section.Mode == CustomErrorsMode.On ||
               (section.Mode == CustomErrorsMode.RemoteOnly && !Context.Request.IsLocal);
    }

    private HttpResponse Response
    {
        get { return Context.Response; }
    }

    private HttpServerUtility Server
    {
        get { return Context.Server; }
    }

    private HttpContext Context
    {
        get { return HttpContext.Current; }
    }
}

enable in your web.config in the same way as any other module

在web.config中启用,与任何其他模块相同

<httpModules>
     ...
     <add name="CustomErrorsTransferModule" type="WebSite.CustomErrorsTransferModule, WebSite" />
     ...
</httpModules>

#4

-1

You can use

您可以使用

Server.Transfer("404error.aspx")

#1

#2