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漏洞集-跨站Script攻击和防范
利用JSP的思想来做ASP
asp的19个基本技巧
自定义aspnet_client的位置
编码的风格和如何设置调试代码
RS.GETROWS使用详解
Adodb.Stream 组件的使用说明
在ASP.Net中实现RSA加密
关于水晶报表10 的字报表数据填充和显示
DataList里套DataGrid,DataBind
ASP.NET验证控件详解
ASP网站漏洞解析及黑客入侵防范方法
产生一个密码,并记录到数据库,然后发送给用户
ASP内置对象 Request对象 详解
ASP 中 DateDiff 函数详解
几个常用的小函数
在记录集中加入判断使之灵活
会员系统“找回密码”的制作方法
一个分页代码例子
常见的错误及其解决方法

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: 113 ::
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