Brief Introduction to JSP status management and brief introduction to jsp status

Brief Introduction to JSP status management and brief introduction to jsp status

Brief Introduction to JSP Status Management

1. Stateless http protocol

Stateless: When a browser sends a request to the server, the server responds to the client request.

But when the same browser sends a request to the server again, the server does not know that it is the browser just now.

Simply put, the server won't remember you, so it is a stateless protocol.

2. Two mechanisms for saving the user status

• Session
• Cookie

3. Cookie Overview

Cookie: the Chinese name is "cookies". It is a series of text information stored on the client by the Web server.

Typical application 1: Determine whether a registered user has logged on to the website.

Typical application 2: "Shopping Cart" processing.

4. Application of cookies in life

 

5. Functions of cookies

1. Tracking specific objects
2. Save users' web browsing records and habits
3. Simplified Logon

Cookie Security Risks

It is easy to disclose user information.

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