Application_Error Global.asax 中的自定义错误处理程序

Application_Error custom error handler in Global.asax

我想检测并重定向来自 Global.asax 的自定义错误。它 returns 200 ok 或 null。我不确定如何自动检测并重定向到错误。希望大家出出主意。

在Web.Config

<system.web>
    <customErrors mode="On" />
</system.web>
<system.webServer>
    <httpErrors existingResponse="PassThrough"/>
</system.webServer>

在Global.asax

protected void Application_Error(object sender, EventArgs e)
{
    Response.TrySkipIisCustomErrors = true;

                Exception ex = Server.GetLastError();

                if (ex is HttpException && ((HttpException)ex).GetHttpCode() == 200)
                {
                    errormessage = ex.Message;
                    Response.RedirectToRoute("error");
                }
                else if (ex is HttpException && ((HttpException)ex).GetHttpCode() == 400)
                {
                    errormessage = ex.Message;
                   Response.RedirectToRoute("error");
                }
                else if (ex is HttpException && ((HttpException)ex).GetHttpCode() == 404)
                {
                    errormessage = ex.Message;
                    Response.RedirectToRoute("error");
                }
                else if (ex is HttpException && ((HttpException)ex).GetHttpCode() == 500)
                {
                    errormessage = ex.Message;
                    Response.RedirectToRoute("error");
                }
                else
                {
                    errormessage = ex.Message;
                    Response.RedirectToRoute("error");
                }
    Server.ClearError();
}

嗯,

我找到了解决问题的临时方法。它不是最好的,但你可能需要它。

在Web.Config

<system.web>
    <customErrors mode="On" /> // On or Off doesn't matter ISS 7 or newer version
</system.web>
<system.webServer>
    <httpErrors existingResponse="Auto">
     <clear/>
     <error statusCode="404" path="/notfound.aspx" responseMode="ExecuteURL" />
     </httpErrors>
</system.webServer>

在Global.asax

HttpException httpexception = Server.GetLastError().GetBaseException() as HttpException;
string ex_message = httpexception.InnerException;
// send or save errors here
Server.ClearError();
Response.Redirect("error");  

注意:我没有处理来自代码隐藏的 404 错误,web.configuration 帮忙解决。