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Topic: How to create Login and Logout for users using session in java and JSP

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User: mohit555 Post Date: 23 Jan 2012 09:38

Introduction:
How to create Login and Logout for users using session in java and JSP



Main Content:


The general way to do this is setting the session with user name

when user signs in and invalidating the session once user logs out.

The code for creating username session on login is as below:

HttpSession sessionObj=request.getSession(true);

sessionObj.setAttribute("Name",username);

The code for checking username session on any page is as below:

Object sessionObj=(session.getAttribute("Name"));

String sessionVar=sessionObj.toString();

if (sessionVar != null)

{

      //display the required page

}

else

{

  <jsp:forward page="ErrorPage.jsp" />

}

The code to invalidate the session for logout

sessionVar.invalidate();

sessionVar.invalidate();

Conclusion:
This way we can create Login and Logout for users using java and JSP



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