LogOut.java

package finalProj;

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

/**
 * Servlet implementation class LogOut
 */
@WebServlet("/Drive/LogOut")
public class LogOut extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
	private void deleteUserCookie(HttpServletRequest request, HttpServletResponse response) {
		Cookie[] cookies = request.getCookies();
		if(cookies != null) {
			for(Cookie cookie : cookies) {
				if(cookie.getName().equals("userName")) {
					cookie.setMaxAge(0);
					response.addCookie(cookie);
				}
			}
		}
	}
	
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		deleteUserCookie(request, response);
		response.sendRedirect("/CS3220Project/Drive");
	}
	
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		doGet(request, response);
	}

}