页面生成时间 - ASP.Net MVC

Question

我正在寻找一种方法来跟踪服务器生成页面所需的时间.我知道我可以使用Trace跟踪这个,但我需要一种方法来显示每页.

其ASP.Net MVC 2

Answer 1

您可以像ActionFilterAttribute一样实现它

[AttributeUsage(AttributeTargets.Class, AllowMultiple = false)]
public class LoggingAttribute : ActionFilterAttribute
{
    private readonly Stopwatch _sw;

    public LoggingAttribute()
    {
        _sw = new Stopwatch();
    }

    public override void OnActionExecuting(ActionExecutingContext filterContext)
    {
        _sw.Start();
        Debug.WriteLine("Beginning executing: " + GetControllerAndActionName(filterContext.ActionDescriptor));
    }

    public override void OnActionExecuted(ActionExecutedContext filterContext)
    {
        _sw.Stop();
        var ms = _sw.ElapsedMilliseconds;

        Debug.WriteLine("Finishing executing: " + GetControllerAndActionName(filterContext.ActionDescriptor));
        Debug.WriteLine("Time elapsed: "+ TimeSpan.FromMilliseconds(ms).TotalSeconds);
    }

    private string GetControllerAndActionName(ActionDescriptor actionDescriptor)
    {
        return actionDescriptor.ControllerDescriptor.ControllerName + " - " + actionDescriptor.ActionName;
    }
}

用它来装饰每个控制器或动作方法,瞧,它在调试中吐出文本.

编辑:如果要在页面上打印它,您可以将此片段添加到OnActionExecuted方法

if(filterContext.Result is ViewResult) { //Make sure the request is a ViewResult, ie. a page
  ((ViewResult) filterContext.Result).ViewData["ExecutionTime"] = ms; //Set the viewdata dictionary
}

现在你已经在ViewData中保存了执行时间,并且可以在页面中访问它.我通常把它放在这样的母版页中

<!-- The page took <%= ViewData["ExecutionTime"] %> ms to execute -->

Answer 2

是的,Derin Suggestion是在ASP.NEt应用程序中执行此操作的标准方法,我建议添加一个if if它不会干扰非HTML响应:编辑:添加完整的实现

public class PerformanceMonitorModule : IHttpModule
{

    public void Init(HttpApplication context)
    {
        context.PreRequestHandlerExecute += delegate(object sender, EventArgs e)
        {
            //Set Page Timer Star
            HttpContext requestContext = ((HttpApplication)sender).Context;
            Stopwatch timer = new Stopwatch();
            requestContext.Items["Timer"] = timer;
            timer.Start();
             };
        context.PostRequestHandlerExecute += delegate(object sender, EventArgs e)
        {

            HttpContext httpContext = ((HttpApplication)sender).Context;
            HttpResponse response = httpContext.Response;
            Stopwatch timer = (Stopwatch)httpContext.Items["Timer"];
            timer.Stop();

            // Don't interfere with non-HTML responses
            if (response.ContentType == "text/html")
            {
                double seconds = (double)timer.ElapsedTicks / Stopwatch.Frequency;
                string result_time = string.Format("{0:F4} sec ", seconds);
                RenderQueriesToResponse(response,result_time);
            }
        };
    }
    void RenderQueriesToResponse(HttpResponse response, string result_time)
    {
        response.Write("<div style=\"margin: 5px; background-color: #FFFF00\"");
        response.Write(string.Format("<b>Page Generated in "+ result_time));
        response.Write("</div>");
    }
    public void Dispose() { /* Not needed */ }
}

你也可以添加一些风格......

并记得在httpModules部分的WebConfig中注册您的模块:

  <add name="Name" type="namespace, dll"/>

有关此内容的完整参考,请参阅Steven Sanderson的Pro ASP.NET MVC框架 - 第15章 - 性能,监控页面生成时间.

编辑:(评论@Pino)以下是我的项目示例: alt text http://www.diarioplus.com/files/pictures/example_performance.JPG