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+Sql 对数据库的各种操作
ASP:6行代码实现无组件上传
ASP中几种分页显示的比较
ASP中数据库调用中常见错误的现象和解决
ASP实用技巧:强制刷新和判断文件地址
asp全站防止注入的代码
ASP如何获取客户端真实IP地址
ASP实现可显示和隐藏的树型菜单
如何用ASP获取真实IP地址
ASP与SQL数据库连接代码
拒绝攻击 万能Asp防注入代码
草根站长成长计划:跟我学新云采集入门(2)
ASP技巧:提高使用Request集合的效率
Asp用存储过程实现数据分页
做网页时常用的ASP函数
Asp编码优化技巧八则
ASP中Cache技术的应用
用ASP封IP的方法,防止固定IP垃圾留言
ASP实现一行多列显示方法实例程序
ASP实现动态添加表单内容的实例程序

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: 30 ::
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