The javax.servlet.http Package - Developing Java Servlets - page 461

The getSession(boolean create) Method
public HttpSession getSession(boolean create)

This getSession() method returns the session associated with the request. If there is no valid
session and the boolean parameter passed in is true , it will create a new session.
getSession() throws no exceptions.

It has one parameter:

• boolean

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It returns this value:

• HttpSession

The getSession() Method
public HttpSession getSession()

This getSession() method performs the same as the previous getSession() method; it just
performs as if it were always passed a true value. getSession() has no parameters and
throws no exceptions.

It returns this value:

• HttpSession

The isRequestedSessionValid() Method
public boolean isRequestedSessionValid()

The isRequestedSessionValid() method returns true if the session is valid in the current
context; otherwise, it returns false . isRequestedSessionValid() has no parameters and
throws no exceptions.

It returns this value:

• boolean

The isRequestedSessionFromCookie() Method
public boolean isRequestedSessionFromCookie()

The isRequestedSessionFromCookie() method returns true if the session ID from the
request came in as a cookie; otherwise, it returns false . isRequestedSessionFromCookie()
has no parameters and throws no exceptions.

It returns this value:

• boolean