What is the scope of a session's life cycle?

The scope of the session life cycle is: from the time the user opens the browser to access your servlet until the user closes the browser. The session has a validity period, which is 15 minutes by default. If the user does not interact with the server during this period, the session content will be automatically cleared.

# The simple understanding of the life cycle of a session is from the time the user opens the browser to access your servlet until the user closes the browser.

No matter how many servlets and jsps you have, as long as the user jumps in the same browser, the objects in the session that you setAttribute to can be taken out. Of course, the session has a validity period. The default is 15 minutes. If the user does not interact with the server during this period, the session content will be automatically cleared.

Session: In computers, especially in network applications, it is called "session control".

The Session object stores the properties and configuration information required for a specific user session. In this way, when the user jumps between the application's Web pages, the variables stored in the Session object will not be lost, but will persist throughout the user session.

When a user requests a Web page from an application, if the user does not have a session, the Web server will automatically create a Session object.

When the session expires or is abandoned, the server will terminate the session.

One of the most common uses of the Session object is to store user preferences.

For example, if the user specifies that he or she does not like to view graphics, this information can be stored in the Session object.

For more information about using the Session object, see "Managing Sessions" in the "ASP Applications" section.

Note that session state is only retained in browsers that support cookies.

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