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
用EasyMailObject组件处理Exchange邮件源代码(6)
用EasyMailObject组件处理Exchange邮件源代码(7)
利用ASP和Access数据库制作局域网网上答题系统
用ASP开发试题库与在线考试系统(1)
用ASP开发试题库与在线考试系统(2)
用ASP开发试题库与在线考试系统(3)
用ASP开发试题库与在线考试系统(4)
用ASP开发试题库与在线考试系统(5)
用ASP开发试题库与在线考试系统(6)
用ASP开发试题库与在线考试系统(7)
用ASP开发试题库与在线考试系统(8)
综合的判断用户输入的合法性的函数
三层动态下拉菜单的例子
将你的网站设置为客户的信任站点--VB方案
论坛中有新贴子功能的实现
ASP 编程中 15 个非常有用的例子
一个的无组件上传的ASP代码
利用ASP实现三个强大功能之一
利用ASP实现三个强大功能之二
利用ASP实现三个强大功能之三

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: 71 ::
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