使用Application對象簡單完成網站總訪問人數的統計

Global.asax文件：

using System.IO;
protected void Application_Start(object sender, EventArgs e)
        {
            FileStream fs = File.Open(Server.MapPath("counter.txt"),FileMode.OpenOrCreate);
            StreamReader sr = new StreamReader(fs);
            Application["count"] = Convert.ToInt32(sr.ReadLine());
            sr.Close();
            fs.Close();
        }
//counter.txt會自動建立
        protected void Session_Start(object sender, EventArgs e)
        {
            Application.Lock();
            Application["count"] = (int)Application["count"] + 1;
            FileStream fs = File.Open(Server.MapPath("counter.txt"), FileMode.OpenOrCreate,FileAccess.ReadWrite);
            StreamWriter sw = new StreamWriter(fs);
            sw.WriteLine(Application["count"]);
            sw.Close();
            fs.Close();
            Application.UnLock();
        }

 

此種方法是把總人數記錄在一個記事本文件中，使用文件流讀寫的方式來更新人數值，較爲簡單。