Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package com.havoc.hotel.controller; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.ResponseBody; /** * * @author HYOJU */ @Controller @RequestMapping(value = "/") public class HomeController { @RequestMapping(method = RequestMethod.GET) public String index() { return "home/index"; } @RequestMapping(method = RequestMethod.GET, value = "logout") public String Logout(HttpServletRequest req, HttpServletResponse resp) { HttpSession session = req.getSession(false); String checking = (String) session.getAttribute("username"); if (checking == null) { return "redirect:/?logout=false"; } else { session.invalidate(); return "redirect:/"; } } }