asp.net 在global中拦截404错误的实现方法

代码如下:void Application_Error(object sender, EventArgs e) { if(Context != null) { HttpContext ctx = HttpContext.Current; Exception ex = ctx.Server.GetLastError(); HttpException ev = ex as HttpException; if(ev!= null) { if(ev.GetHttpCode() == 404) { ctx.ClearError(); Response.Redirect(“~/nofound.aspx”,