论坛在线人数统计代码

Posted on 2004-12-03 17:14  生活即技术  阅读(5715)  评论(9编辑  收藏  举报
最近做了个小论坛,需要用到统计在线的会员名单和游客的人数,经过上午的调试,总于产生了下面的代码。
总要的思路是 :在服务器端用application 保存用户名及用户最后的登陆时间。用户的每次访问都将检查现在的时间与保存在application 中的每个用户最后登陆时间之差是否大于设定的时间如过大于,则把该用户从application中剔除.          

 
 
REM    application("Total_Land_User") 是会员在线登陆的数目 
        REM   application("Online_Land_User") 是在线会员的名单数组
        Sub Inline_State()
                
Dim Forums_ As New Forums
                
Dim Timer As Int32 = 1
                
Dim temp_Land_User(), temp_User(), User_name, Land_User, User As String
                
Dim Num, i As Int32
                Application.
Lock()

                
If Session("User_name"<> "" Then

                        Land_User 
= Session("User_name")

                        
If Application(Land_User & "LandUser_LastAccessTime"= Nothing Then               '假如第一次登陆

                                
If Application("Total_Land_User"= 0 Then Application.Set("Total_Land_User"0'假如登陆用户数为0

                                
ReDim temp_Land_User(Application("Total_Land_User"+ 1)

                                Num 
= 0

                                
If Application("Total_Land_User"> 0 Then

                                        
For i = Application("Online_Land_User").GetLowerBound(0To Application("Online_Land_User").GetUpperBound(0- 1

                                                User_name 
= Application("Online_Land_User")(i)

                                                
'  Response.Write("清点用户是的用户是:" & User_name & "<br>")

                                                
If User_name <> Land_User Then

                                                        temp_Land_User(Num) 
= User_name

                                                        Num 
+= 1

                                                
Else

                                                        Application(Land_User 
& "LandUser_LastAccessTime"= Nothing

                                                
End If
                                        
Next

                                
End If
                                temp_Land_User(Num) 
= Land_User                                                           '重新把登陆用户放到数组最后

                                Application(
"Total_Land_User"= Num + 1

                                
ReDim Preserve temp_Land_User(Application("Total_Land_User"))

                                Application.
Set("Online_Land_User", temp_Land_User)



                        
End If

                        
'    Response.Write("<br>总的用户数是:" & Application("Total_Land_User"))
                        ' Response.Write("<br> Application(Online_Land_User).GetLowerBound(0):" & Application("Online_Land_User").GetLowerBound(0))

                        
'   Response.Write("<br> Application(Online_Land_User).GetUpperBound(0):" & Application("Online_Land_User").GetUpperBound(0))
                        '   Response.Write("<br>用户列表是:")
                        '  For i = Application("Online_Land_User").GetLowerBound(0) To Application("Online_Land_User").GetUpperBound(0) - 1

                        
'     Response.Write("<br>" & Application("Online_Land_User")(i))
                        '     Response.Write("  最后登陆时间为:" & Application(Application("Online_Land_User")(i) & "LandUser_LastAccessTime"))

                        
' Next

                        Application(Land_User 
& "LandUser_LastAccessTime"= System.DateTime.Now                              '记录登陆时间


                        
ReDim temp_Land_User(Application("Total_Land_User"))

                        Num 
= 0

                        
For i = 0 To Application("Total_Land_User"- 1

                                User_name 
= Application("Online_Land_User")(i)

                                
Dim D_date As DateTime = CType(Application(User_name & "LandUser_LastAccessTime"), DateTime)

                                
If (System.DateTime.Now < D_date.AddMinutes(Timer)) Then

                                        temp_Land_User(Num) 
= User_name

                                        Num 
+= 1

                                
Else

                                        Application(Land_User 
& "LandUser_LastAccessTime"= Nothing

                                
End If

                        
Next

                        
If Num <> Application("Total_Land_User"Then

                                
ReDim Preserve temp_Land_User(Num)

                                Application(
"Online_Land_User"= temp_Land_User                                          ' 在线登陆用户数组

                                Application(
"Total_Land_User"= Num + 1                                                         '

                        
End If

                
Else

                        
'游客的统计
                        User = Session.SessionID

                        
If Application(User & "LastAccessTime"= Nothing Then                          '假如第一次登陆

                                
If Application("Total_User"= 0 Then Application.Set("Total_User"0'假如登陆用户数为0

                                
ReDim temp_User(Application("Total_User"+ 1)

                                Num 
= 0

                                
If Application("Total_User"> 0 Then

                                        
For i = Application("Online_User").GetLowerBound(0To Application("Online_User").GetUpperBound(0- 1

                                                User_name 
= Application("Online_User")(i)

                                                
If User_name <> User Then

                                                        temp_User(Num) 
= User_name

                                                        Num 
+= 1

                                                
Else

                                                        
' Application(User & "User_LastAccessTime") = Nothing

                                                
End If
                                        
Next

                                
End If
                                temp_User(Num) 
= User                                                          '重新把登陆用户session.sessionid放到数组最后

                                Application(
"Total_User"= Num + 1

                                
ReDim Preserve temp_User(Application("Total_User"))

                                Application.
Set("Online_User", temp_User)

                        
End If

                        
'Response.Write("<br>总的用户数是:" & Application("Total_User"))
                        'Response.Write("<br> Application(Online_User).GetLowerBound(0):" & Application("Online_User").GetLowerBound(0))

                        
'Response.Write("<br> Application(Online_User).GetUpperBound(0):" & Application("Online_User").GetUpperBound(0))
                        'Response.Write("<br>用户列表是:")
                        'For i = Application("Online_User").GetLowerBound(0) To Application("Online_User").GetUpperBound(0) - 1

                        
'        Response.Write("<br>" & Application("Online_User")(i))
                        '        Response.Write("  最后登陆时间为:" & Application(Application("Online_User")(i) & "User_LastAccessTime"))

                        
'Next


                        Application(User 
& "User_LastAccessTime"= System.DateTime.Now                              '记录登陆时间


                        
'检测过期的
                        ReDim temp_User(Application("Total_User"))

                        Num 
= 0

                        
For i = 0 To Application("Total_User"- 1

                                User_name 
= Application("Online_User")(i)

                                
Dim D_date As DateTime = CType(Application(User_name & "User_LastAccessTime"), DateTime)

                                
If (System.DateTime.Now < D_date.AddMinutes(Timer)) Then

                                        temp_User(Num) 
= User_name

                                        Num 
+= 1

                                
Else

                                        Application(User 
& "User_LastAccessTime"= Nothing

                                
End If

                        
Next

                        
If Num <> Application("Total_User"Then

                                
ReDim Preserve temp_User(Num)

                                Application(
"Online_User"= temp_User                          '在线的游客session.sessionid数组

                                Application(
"Total_User"= Num + 1                                         '在线游客数量

                        
End If

                
End If

                
Dim str_ As New System.Text.StringBuilder

                Me._Total_user_num.Text 
= Application("Total_User"+ Application("Total_Land_User")

                Me._Total_notland_num.Text 
= Application("Total_User"& "人"

                If IsArray(Application("Online_Land_User")) Then

                        
For i = Application("Online_Land_User").GetLowerBound(0To Application("Online_Land_User").GetUpperBound(0- 1

                                User_name 
= Application("Online_Land_User")(i)
                                str_ 
= str_.Append(User_name & ",")
                        
Next

                        Me._Total_land_num.Text 
= str_.ToString
                
End If

                Application.
UnLock()

        
End Sub