/// <summary>
/// 今日访问人数
/// </summary>
public static int todayCount;
/// <summary>
/// 更新今日访问数的标志
/// </summary>
static DateTime lastCleanUp;
/// <summary>
/// 锁对象
/// </summary>
static object _obj = new object();
/// <summary>
/// 日志文件的路径
/// </summary>
string logFile = AppDomain.CurrentDomain.BaseDirectory + "visitLog.txt";
protected void Application_Start(object sender, EventArgs e)
{
//刚启动，为了防止服务器意外死机重启等因素，需要从记录文件中读取数目
if (System.IO.File.Exists(logFile))
{
string[] lines = System.IO.File.ReadAllLines(logFile);
if (lines.Length >= 2)
{
int.TryParse(lines[0], out todayCount);
DateTime.TryParse(lines[1], out lastCleanUp);
}
}
}
protected void Session_Start(object sender, EventArgs e)
{
//锁定对象确定单线程访问
lock (_obj)
{
//如果日期变化了，将今日访问归零
if (DateTime.Now.Day != lastCleanUp.Day)
{
lastCleanUp = DateTime.Now;
todayCount = 0;
}
//计数
todayCount++;
//为了防止服务器死机重启等意外因素丢失数据，每隔50个访客更新一下记录文件
//这个需要根据访问量调整
if (todayCount % 50 == 0)
{
string[] fns = new string[] { todayCount.ToString(), lastCleanUp.ToString() };
System.IO.File.Delete(logFile);
System.IO.File.WriteAllLines(logFile, fns);
}
}
#region
////获取用户访问的页面
//string pageurl = Request.Url.ToString();
//if (pageurl.EndsWith("index.aspx")) //判断访问的是否是首页
//{
// //锁定变量
// Application.Lock();
// //页面访问量加一
// Application["StatCount"] = int.Parse(Application["StatCount"].ToString()) + 1;
// //解锁
// Application.UnLock();
//}
#endregion
}
protected void Application_BeginRequest(object sender, EventArgs e)
{
}
protected void Application_AuthenticateRequest(object sender, EventArgs e)
{
}
protected void Application_Error(object sender, EventArgs e)
{
}
protected void Session_End(object sender, EventArgs e)
{
}
protected void Application_End(object sender, EventArgs e)
{
//保存当前访问
string[] fns = new string[] { todayCount.ToString(), lastCleanUp.ToString() };
System.IO.File.Delete(logFile);
System.IO.File.WriteAllLines(logFile, fns);
}
}
}