Session (gb.web)
这个类用于管理 sessions.
该类是静态类。
该类行为像一个
可读/
可写静态数组。
What is a session?
A session allows you to keep the value of variables between two HTTP requests.
A session is a collection-like container identified by an arbitrary unique string
returned by the
Session.Id property.
That identifier has the following form:
<PREFIX>:<KEY>
-
<PREFIX> is the prefix set to the Session.Prefix property, or the client IP address if no prefix is set.
-
<KEY> is a 24 hexadecimal digits random number.
For example:
10.254.3.151:CFA76E086C00E18CF07A8EC
The session identifier is stored in a cookie named 'SESSION' in the client browser.
Storing values in session
The session can store values associated with string keys. You can store as many values as you want,
but there are restrictions: only native datatypes, arrays, and collections can be used.
The session contents are stored in the following file:
"/tmp/gambas." &/ System.User.Id &/ "session" &/ Session.Id
The session is automatically restored at program launch.
Session creation
A newly session is automatically created as soon as you store a session variable, and no session currently exists
(i.e.
Session.Id is
NULL).
If you call
Response.Begin too early, the session cannot be created, as the HTTP headers have already been sent. You have two solutions then:
Session destruction
You can abandon a session by using the
Abandon method.