What is setContentType in servlet?

setContentType(java.lang.String type) Sets the content type of the response being sent to the client, if the response has not been committed yet. void. setLocale(java.util.Locale loc) Sets the locale of the response, if the response has not been committed yet.

What is a servlet session?

Session Tracking is a way to maintain state (data) of an user. It is also known as session management in servlet. Http protocol is a stateless so we need to maintain state using session tracking techniques. Each time user requests to the server, server treats the request as the new request.

How do you invalidate a session in a servlet?

In a web application you might want to invalidate user session, for instance in a logout Servlet or JSP. There is an invalidate() method in the HttpSession interface, this method invalidates the session, and it removes all attributes from the session object.

How a servlet code can terminate a session?

Which method is use to terminate the session object in servlet? public void invalidate() method is call to terminate the session object .

What is RES setContentType text HTML?

It means what type of response you want to send to client, some content types like : res.setContentType(“image/gif”); res.setContentType(“application/pdf”); res.setContentType(“application/zip”);

What is session class in Java?

The Session class represents a mail session and is not subclassed. It collects together properties and defaults used by the mail API’s. A single default session can be shared by multiple applications on the desktop. Unshared sessions can also be created.

How do I make a session invalidate?

Invalidating a Session Manually To invalidate a session manually, call the following method: session. invalidate(); All objects bound to the session are removed.

How do you validate a session?

To check if a session is valid I am doing this: HttpSession session = request. getSession(); String name = (String) session. getAttribute(“name”);…

  1. thank you, so request. getSession(false) if the session is active, what will return?
  2. it will return your current session.
  3. This is the right answer.

How do you destroy a specific session in Java?

To destroy a session you can either call session. invalidate() method or session. setMaxInactiveInterval(0).

How do you end a session in Java?

A user session can be terminated in any of following ways: User Ends Session….The Logout Service receives the Logout request, and performs the following steps:

  1. Marks user’s session as destroyed.
  2. Destroys session.
  3. Returns a successful logout page to the user.