当前位置: 首页 > 图文教程 > 网络编程 > ASP > 关于释放session的两篇文章(一)

ASP
ASP实现不存在的网页就自动发送邮件
多个绑定多域名的ASP代码
ASP导出Excel数据的四种方法
用控件的方式解决问题-在客户端关联WEB控件引用
用ASP建立一个简单的聊天室
用Asp隐藏文件路径,实现防盗链
ASP实例:即时显示当前页面浏览人数
网页视频播放器程序代码通用代码
Cookies 欺骗漏洞的防范(vbs+js 实现)
ASP应用程序设计的Web状态管理分析
ASP中Session技巧
ASP教程:透彻掌握ASP分页技术
ASP获取字符串长度的自定义函数
通过实例讲解来学习ASP中的函数
ASP实例代码:长文章分页代码设置方法
深入理解ASP中FSO的神奇功能
用ASP代码得到客户端IP和当前地址
服务端 VBScript 与 JScript 几个相同特性的写法
JS+DIV模拟SELECT表单域
插入ASP代码让网站数据库成为ASP木马

ASP 中的 关于释放session的两篇文章(一)


出处:互联网   整理: 软晨网(RuanChen.com)   发布: 2009-11-03   浏览: 38 ::
收藏到网摘: n/a

  If you are using ASP 3.0 (the version of ASP that comes with Windows 2000 / IIS 5) then you can use the following syntax:

Session.Contents.Remove "name"

where Name is the name of the Session variable you wish to remove. Removing Session variables in this way has its advantages over using the following method:

Session("Name") = Null

Namely, the above method (setting a Session variable to Null) only removes the memory associated with the Session variable itself... the Session object still maintains a reference to it, though. Each Session variables is stored in the Session object with a key/item pair, similar to the Scripting.Dictionary object. Therefore, using the Null method above, you are not removing the key from the Session Contents collection that contains the reference to the variable...

With the Remove method that we looked at first, you are removing both the key and item associated with a Session variable. There is also a RemoveAll method that can be used to scrap all of the Session variables completely:

Session.Contents.RemoveAll

Again, the Remove and RemoveAll methods are new to ASP 3.0. If you have ASP 2.0, you will need to use the Null method