91 lines
3.4 KiB
C#
91 lines
3.4 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Linq;
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using System.Web;
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using System.Web.Mvc;
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namespace OC.MVC.Utility
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{
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public class PerformanceActionAttribute : ActionFilterAttribute
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{
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public string Message { get; set; }
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public override void OnActionExecuting(ActionExecutingContext filterContext)
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{
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//在Action执行前执行
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GetTimer(filterContext, "action").Start();
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base.OnActionExecuting(filterContext);
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}
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public override void OnActionExecuted(ActionExecutedContext filterContext)
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{
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//在Action执行之后执行
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var actionTimer = GetTimer(filterContext, "action");
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//GetTimer(filterContext, "action").Stop();
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actionTimer.Stop();
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base.OnActionExecuted(filterContext);
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string extime = "页面执行耗时" + actionTimer.ElapsedMilliseconds + "毫秒";
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filterContext.HttpContext.Response.Headers.Add("extime", extime);
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//在这里显示给用户的时间只是action的执行时间，如果在view中有执行调用代码的部分，则时间不会
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//记录在内，所以这里的时间不是很准，但是这个时间可以很自由的被view中的代码调用显示，使得界面可以按照
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//自己的意愿进行显示
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}
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public override void OnResultExecuting(ResultExecutingContext filterContext)
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{
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GetTimer(filterContext, "render").Start();
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base.OnResultExecuting(filterContext);
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}
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public override void OnResultExecuted(ResultExecutedContext filterContext)
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{
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//在Result执行之后
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//这里使用response.write输出只能是输出到documnet的最后部分，不能按照想法显示到指定的随意位置
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//所以这里隐藏显示了。
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//这这部分使用response.Headers是无效的，因为当执行这部分内容的时候，view已经渲染完了，在这添加到Header
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//中的值，无法在页面获得
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var renderTimer = GetTimer(filterContext, "render");
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renderTimer.Stop();
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var actionTimer = GetTimer(filterContext, "action");
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var response = filterContext.HttpContext.Response;
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if (response.ContentType == "text/html")
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{
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response.Write(
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String.Format(
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"<p id='pidtimeelapse' style='display:none;'>Action '{0} :: {1}', Execute: {2}ms, Render: {3}ms.</p>",
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filterContext.RouteData.Values["controller"],
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filterContext.RouteData.Values["action"],
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actionTimer.ElapsedMilliseconds,
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renderTimer.ElapsedMilliseconds
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)
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);
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}
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base.OnResultExecuted(filterContext);
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}
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private Stopwatch GetTimer(ControllerContext context, string name)
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{
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string key = "__timer__" + name;
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if (context.HttpContext.Items.Contains(key))
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{
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return (Stopwatch)context.HttpContext.Items[key];
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}
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var result = new Stopwatch();
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context.HttpContext.Items[key] = result;
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return result;
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}
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}
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}
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