The following article describes When to Use Sessions in JSP.

Sessions in JSP (JavaServer Pages) allow you to store and retrieve data between multiple requests made by a user. Sessions can be useful in many situations. For example.

  • User authentication. Sessions maintain information about a user’s login status, such as their username and password so that they don’t have to log in again every time they access a new page on the website.
  • Shopping carts. Also, sessions hold details about items a user keeps in their shopping cart so that they don’t lose their selections when they navigate to a different page on the website.
  • Form data. The session holds form data temporarily so that users don’t have to re-enter the information if they navigate away from the form and come back later.
  • User preferences. Also, sessions maintain user preferences, such as the user’s preferred language or color scheme so that the website can customize its appearance or behavior for each user.

In general, sessions are useful whenever you need to store information temporarily between requests in a web application. However, it’s important to use sessions judiciously and not store more data than necessary, as this can impact the performance and scalability of the application. Additionally, it’s important to manage sessions properly to avoid security risks such as session hijacking or session fixation.

Further Reading

Spring Framework Practice Problems and Their Solutions

Java Practice Exercise