LogoutServlet.java

package technical.blog.com.servlets;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import technical.blog.com.entities.Message;


@WebServlet("/LogoutServlet")
public class LogoutServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;

	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		HttpSession s=request.getSession();
		s.removeAttribute("currentUser");
		
		//create message 
		Message m=new Message("Logout Successfully !!","success","alert-success","text-primary");
		s.setAttribute("msg", m);
		
		response.sendRedirect("login-page.jsp");
	}

	
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		
		doGet(request, response);
	}

}