计数器

protected void Application_Start(Object sender, EventArgs e)
        ...{
            uint count=0;
            StreamReader srd;
            string file_path=Server.MapPath ("Counter/counter.txt");
            srd=File.OpenText (file_path);
            while(srd.Peek ()!=-1)
            ...{
                string str=srd.ReadLine ();
                count=UInt32.Parse (str);
            }
            object obj=count;
            Application["counter"]=obj;
            srd.Close ();

        }

 

    protected void Session_Start(Object sender, EventArgs e)
        ...{
            Application.Lock ();
            //数值累加，注意这里使用了装箱（boxing）
            uint jishu=0;
            jishu=(uint)Application["counter"];
            jishu=jishu+1;
            object obj=jishu;
            Application["counter"]=obj;            

        
            //将数据记录写入文件
            string file_path=Server.MapPath ("Counter/counter.txt");
            StreamWriter fs=new StreamWriter(file_path,false); 
            fs.WriteLine (jishu);
            fs.Close ();
        
            Application.UnLock ();

            ZzbDbproClass m_Dbpro=new ZzbDbproClass();
            string m_IPAddress=m_Dbpro.G_User_IP();
            m_Dbpro.Add_OT_SiteLog( System.DateTime.Now, m_IPAddress, System.DateTime.Now.Month, System.DateTime.Now.Year);
            m_Dbpro.Upt_OT_SiteCount(int.Parse(Application["counter"].ToString()),"");
        }

protected void Application_End(Object sender, EventArgs e)
        ...{
            //装箱
            uint js=0;
            js=(uint)Application["counter"];
            //object obj=js;
            //Application["counter"]=js;
            //将数据记录写入文件
            string file_path=Server.MapPath ("Counter/counter.txt");
            StreamWriter fs=new StreamWriter(file_path,false); 
            fs.WriteLine(js);
            fs.Close ();
        }

//禁cache
Response.Buffer=true;
            Response.ExpiresAbsolute=DateTime.Now.AddSeconds(-1);
            Response.Expires=0;
            Response.CacheControl="no-cache";