上一篇博文中《 asp.net 访问页面访问统计实现 》 中在win10 （iis8+）上运行没有问题，
但客户机子是windows server 2008 的 iis7弄死不对，最好加
<system.web>...<customErrors mode="Off"/>...</system.web>
把问题找到了！
1、_Cache = new System.Web.Caching.Cache(); （iis7不支持）
_Cache = HttpContext.Current.Cache;（更改为）
2、System.Timers.Timer（iis7触发不到事件）
System.Threading.Timer(更改为)
0x01、核心代码（更改为）：
1、实现Http拦截操作，核心代码就是这一个了：
using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Configuration;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Threading;
using System.Web;
using System.Xml;
namespace HYSWare.Web
{
public class CurVisitCount {
public DateTime BeginTime{get;set;}
public int Count { get; set; }
}
public class RequestHandler : IHttpModule
{
private static System.Threading.Timer timer1;
private static System.Web.Caching.Cache _Cache;
private int _IntervalMinute;
public int IntervalMinute
{
get
{
string _IntervalMinuteStr = ConfigurationManager.AppSettings["IntervalMinute"];
if (string.IsNullOrEmpty(_IntervalMinuteStr))
{
_IntervalMinute = 5;
}
else
{
_IntervalMinute = Convert.ToInt32(_IntervalMinuteStr);
}
return _IntervalMinute;
}
}
public RequestHandler()
{
if (_Cache == null)
{
_Cache = HttpContext.Current.Cache;// new System.Web.Caching.Cache();
}
if (timer1 == null)
{
var autoEvent = new AutoResetEvent(false);
timer1 = new Timer(p => FlushData(), autoEvent, 0, IntervalMinute * 60000);
//timer1 = new System.Timers.Timer(IntervalMinute * 60000);
//timer1.Elapsed += new System.Timers.ElapsedEventHandler(timer1_Tick);
//timer1.AutoReset = true;//设置是执行一次（false）还是一直执行(true)；
//timer1.Enabled = true;//是否执行System.Timers.Timer.Elapsed事件；
}
if (_Cache["CurVisitCount"]==null)
_Cache["CurVisitCount"] = new CurVisitCount { BeginTime = DateTime.Now, Count = 0 };
if (_Cache["VisitCount"] == null)
_Cache["VisitCount"]="0";
}
void IHttpModule.Dispose()
{
}
void IHttpModule.Init(HttpApplication context)
{
context.BeginRequest += new EventHandler(context_BeginRequest);
//context.EndRequest += new EventHandler(context_EndRequest);
}
void context_BeginRequest(object sender, EventArgs e)
{
string[] requestEx = { ".aspx",".htm", ".html"};
HttpApplication application = (HttpApplication)sender;
var curRequest = application.Context.Request;
if (requestEx.Contains(curRequest.CurrentExecutionFilePathExtension)) {
if (_Cache["CurVisitCount"] == null)
_Cache["CurVisitCount"]=new CurVisitCount { BeginTime = DateTime.Now, Count = 1 };
CurVisitCount curVisitCount = (CurVisitCount)_Cache["CurVisitCount"];
if (curVisitCount.BeginTime.Year + curVisitCount.BeginTime.Month < DateTime.Now.Year + DateTime.Now.Month)
{
UpdateVisitCount(curVisitCount.BeginTime);
curVisitCount = (CurVisitCount)_Cache["CurVisitCount"];
}
curVisitCount.Count += 1;
_Cache["CurVisitCount"] = curVisitCount;
if (_Cache["VisitCountXml"] == null)
_Cache["VisitCountXml"] = GetVisitCountInXml();
int visitCountXml = 0;
int.TryParse(_Cache["VisitCountXml"].ToString(),out visitCountXml);
_Cache["VisitCount"] = (visitCountXml + curVisitCount.Count).ToString();
}
//application.Context.Response.Write("自定义ModuleRequest开始");
}
private int GetVisitCountInXml()
{
int ret = 0;
string _VisitPath = AppDomain.CurrentDomain.BaseDirectory + "App_Data\\Xml\\VisitCountData.xml";
XmlDocument doc = new XmlDocument();
if (File.Exists(_VisitPath))
{
doc.Load(_VisitPath);
var curNode = doc.SelectNodes("//Visit");
foreach (XmlNode m in curNode) {
var countAttr = m.Attributes.GetNamedItem("VCount");
int v = 0;
int.TryParse(countAttr.Value, out v);
ret += v;
}
}
return ret;
}
private void UpdateVisitCount(DateTime time)
{
if (_Cache["CurVisitCount"] == null)
_Cache["CurVisitCount"]= new CurVisitCount { BeginTime = DateTime.Now, Count = 0 };
CurVisitCount curVisitCount = (CurVisitCount)_Cache["CurVisitCount"];
if (curVisitCount.Count > 0)
{
string _VisitPath = AppDomain.CurrentDomain.BaseDirectory + "App_Data\\Xml\\VisitCountData.xml";
XmlDocument doc = new XmlDocument();
if (File.Exists(_VisitPath))
{
doc.Load(_VisitPath);
var curNode = doc.SelectSingleNode(string.Format("//Visit[@Year='{0}' and @Month='{1}']", time.Year, time.Month));
if (curNode != null)
{
var countAttr = curNode.Attributes.GetNamedItem("VCount");
int count = 0;
int.TryParse(countAttr.Value, out count);
countAttr.Value = (count + curVisitCount.Count).ToString();
}
else
{
//有文件但没有本月数据
XmlNode root = doc.SelectSingleNode("Visits");
XmlElement element1 = doc.CreateElement("Visit");
element1.SetAttribute("Year", time.Year.ToString());
element1.SetAttribute("Month", time.Month.ToString());
element1.SetAttribute("VCount", curVisitCount.Count.ToString());
root.AppendChild(element1);
}
}
else
{
XmlDeclaration dec = doc.CreateXmlDeclaration("1.0", "utf-8", null);
doc.AppendChild(dec);
//创建一个根节点（一级）
XmlElement root = doc.CreateElement("Visits");
doc.AppendChild(root);
//创建节点（二级）
XmlElement element1 = doc.CreateElement("Visit");
element1.SetAttribute("Year", time.Year.ToString());
element1.SetAttribute("Month", time.Month.ToString());
element1.SetAttribute("VCount", curVisitCount.ToString());
root.AppendChild(element1);
}
doc.Save(_VisitPath);
_Cache["VisitCountXml"] = GetVisitCountInXml();
_Cache["VisitCount"] = _Cache["VisitCountXml"];
_Cache["CurVisitCount"] = new CurVisitCount { BeginTime = DateTime.Now, Count = 0 };
}
}
void FlushData()
{
UpdateVisitCount(DateTime.Now);
}
//private void timer1_Tick(object sender, EventArgs e)
//{
// UpdateVisitCount(DateTime.Now);
//}
}
}
