Context Attributes Servlet : Context « Servlets « Java
Context Attributes Servlet
import java.io.PrintWriter;
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 SessionTracker2 extends HttpServlet
{
public void doGet(HttpServletRequest req, HttpServletResponse res)throws ServletException, IOException
{
res.setContentType("text/html");
PrintWriter out = res.getWriter();
HttpSession session = req.getSession(true);
Integer totalCount = (Integer) getServletContext().getAttribute("total");
if (totalCount == null)
{
totalCount = new Integer(1);
}
else
{
totalCount = new Integer(totalCount.intValue() + 1);
}
Integer count = (Integer) session.getAttribute("count");
if (count == null) {
count = new Integer(1);
} else {
count = new Integer(count.intValue() + 1);
}
session.setAttribute("count", count);
getServletContext().setAttribute("total", totalCount);
out.println("<html><head><title>SessionSnoop</title></head>");
out.println("<body><h1>Session Details</h1>");
out.println("You've visited this page " + count + ((count.intValue() == 1) ? " time." : " times.") + "<br/>");
out.println("Total number of visits: " + totalCount + "<br/>");
out.println("<h3>Details of this session:</h3>");
out.println("Session id: " + session.getId() + "<br/>");
out.println("New session: " + session.isNew() + "<br/>");
out.println("Timeout: " + session.getMaxInactiveInterval() + "<br/>");
out.println("Creation time: " + new Date(session.getCreationTime()) + "<br/>");
out.println("Last access time: " + new Date(session.getLastAccessedTime()) + "<br/>");
out.println("</body></html>");
}
}
ContextAttributesServlet.zip( 90 k)