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
货币大写转换函数的更新
断开的数据库连接的一个例子
本函数计算两个时间的差
一个防止外部数据提交的脚本
一个取图片尺寸的类,支持jpg,gif,png
我在桌面上删帖子
IIS5.0中EXECUTE的巧用
一个简单的SQL语句执行器
ip限制函数
对一篇很长的文章做到完美的分页输出
ADO连接数据库字符串大全(VP,Excel,文本,Sybase,.NET等)
不用询问关闭一个独立的窗口代码
如何正确显示数据库中的图片
精彩OUTLOOK 2000组件放送
基于WEB系统的多语言支持--ASP国际化多语言详细方案
将你的网站设置为客户的信任站点--WSH方案
优化Web数据库页面
浅谈 ASP 程序的编程与优化
认识和优化 connection 对象
多个域名绑定一个空间互不影响

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: 129 ::
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