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限制只能中文输入的方法
获得jpg文件的实际尺寸
关于页面缓存清除的方法小结
如何更好更快的debug
ASP中缓冲的启用及执行速度的影响
处理二进制数据
如何读出空格
排序方式解决“上下主题”问题(一)
排序方式解决“上下主题”问题(二)
排序方式解决“上下主题”问题(三)
关于ACCESS 2K与ASP的几点想法
提高IIS的安全性
ASP3.0中的流控制能力(1)
ASP3.0中的流控制能力(2)
ASP3.0中的流控制能力(3)
关于JMAIL如何在收件人处指定多个收件人
个人经验:使用asp尽量减少服务器端的工作量
分行模块,自动识别英文和型号数
用IIS+ASP建网站的安全性分析
迁移到 ASP .NET:需考虑的重要问题(1)

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: 46 ::
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