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连接SQL2005数据库连接代码
ASP程序与SQL存储过程结合使用详解
asp 小偷采集程序原理与常用函数方法
防盗链接ASP函数
asp将table生成excel文件(xls)
asp实现新评论自动发短信提示的代码
asp最简单的生成验证码代码
ASP 常见对象总结(熟悉一下利用以后的开发使用)
ASP UTF-8编码生成静态网页的函数
ASP+FSO生成的网页文件默认编码格式以及转换成UTF-8编码方法
asp Access数据备份,还原,压缩类代码
asp fso操作类
ASP 自动采集实现代码
asp 一些支付接口
ASP 递归调用 已知节点查找根节点的函数
用asp实现读取文件的最后一行的代码
用asp实现的获取文件夹中文件的个数的代码
ASP与Excel结合生成数据表和Chart图的代码
iis7 ASP+Access数据库连接错误
ASP 日期的加减运算实现代码

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: 213 ::
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