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This article will explain in detail what is the scope of the life cycle of session, the content of the article is of high quality, so the editor will share it with you for reference. I hope you will have a certain understanding of the relevant knowledge after reading this article.

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

The life cycle of session simply means that the user opens a browser and accesses your servlet until the user closes the browser.

No matter how many servlet and jsp you have, as long as the user jumps in the same browser, the objects in your setAttribute to session can be removed. Of course, session has a validity period, and the default is 15 minutes. If the user does not interact with the server during this period of time, the content of the session will be emptied automatically.

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 Web pages of the application, 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, the Web server automatically creates a Session object if the user does not already have a session.

When a session expires or is abandoned, the server terminates the session.

One of the most common uses of Session objects is to store users' preferences.

For example, if you indicate that you don't like viewing drawings, you can store that information in a Session object.

For more information about using Session objects, see "Managing sessions" in the "ASP applications" section.

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

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