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yinzhihua2008

分类中“我的实验室”是我在日常工作中的一些知识总结,有些写的比较匆忙,可能大家在阅读时会产生困扰,后期有时间我会重新整理编辑,谢谢大家的到访,您们的支持是我前进的动力！

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在线人数统计

2011-01-26 15:50:49| 分类： .NET/C# | 标签： |举报 |字号大中小订阅

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<%@ Application Language="VB" %>

    Sub Application_Start(ByVal sender As Object, ByVal e As EventArgs)
        ' 在应用程序启动时运行的代码
        Application("counter") = 0
    End Sub

    Sub Application_End(ByVal sender As Object, ByVal e As EventArgs)
        ' 在应用程序关闭时运行的代码
    End Sub

    Sub Application_Error(ByVal sender As Object, ByVal e As EventArgs)
        ' 在出现未处理的错误时运行的代码
    End Sub

    Sub Session_Start(ByVal sender As Object, ByVal e As EventArgs)
        ' 在新会话启动时运行的代码
        '对Application加锁以防并行性
        Application.Lock()
        '增加一个在线人数
         Application("counter") = Application("counter") +1
        '解锁
        Application.UnLock()
    End Sub

    Sub Session_End(ByVal sender As Object, ByVal e As EventArgs)
        ' 在会话结束时运行的代码。
        ' 注意: 只有在 Web.config 文件中的 sessionstate 模式设置为
        ' InProc 时，才会引发 Session_End 事件。如果会话模式设置为 StateServer
        ' 或 SQLServer，则不会引发该事件。

        '对Application加锁以防并行性
        Application.Lock()
        '增加一个在线人数
        Application("counter") = Application("counter") - 1
        '解锁
        Application.UnLock()
    End Sub

</script>

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