ManualInvalidate.java Source code

Introduction

Here is the source code for ManualInvalidate.java

Source

import java.io.IOException;
import java.util.Date;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

public class ManualInvalidate extends HttpServlet {

    public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
        res.setContentType("text/html");

        HttpSession session = req.getSession();

        // Invalidate the session if it's more than a day old or has been
        // inactive for more than an hour.
        if (!session.isNew()) { // skip new sessions
            Date dayAgo = new Date(System.currentTimeMillis() - 24 * 60 * 60 * 1000);
            Date hourAgo = new Date(System.currentTimeMillis() - 60 * 60 * 1000);
            Date created = new Date(session.getCreationTime());
            Date accessed = new Date(session.getLastAccessedTime());

            if (created.before(dayAgo) || accessed.before(hourAgo)) {
                session.invalidate();
                session = req.getSession(); // get a new session
            }
        }
    }
}