Servlet Login Logout Example Using Session

Hello everybody!

Here is the second version of the "Servlet Login Logout Example". This time I used session instead of cookies. The code and the appearance of the pages are pretty such the same with the first version. I will still add everything here to provide an easy flow for you.



So here is the index.html.

index.html

When the user clicks the login button, we ask him/her to enter username and password. After checking if they match with the correct information, we then can store user information in a session object to identify the user across the other pages within the application. So the "LoginServlet" does this job as you can see below.

LoginServlet

After a successful login, the user will see the page below. Once logged in, the user will see his/her name on the welcome page. The user now can view the profile page or log out.

welcome page

Clicking the "Profile" link on the welcome page, "Profile Servlet" will be called. The content of it can be seen down below.

ProfileServlet

Clicking the "Logout" button, the session will be deleted by "LogoutServlet".

LogoutServlet

If you want to have a look at the web.xml file, I will add a screenshot just below.

web.xml

Hope to see you in the next blog post.

Selen