Java tutorial
/** * Copyright (C) 2011 jtalks.org Team * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * Also add information on how to contact you by electronic and paper mail. * Creation date: Apr 12, 2011 / 8:05:19 PM * The jtalks.org Project */ package org.jtalks.jcommune.web.controller; import org.jtalks.jcommune.model.entity.Post; import org.jtalks.jcommune.model.entity.User; import org.jtalks.jcommune.service.SecurityService; import org.jtalks.jcommune.service.TopicService; import org.jtalks.jcommune.service.UserService; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; 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.RequestParam; import org.springframework.web.servlet.ModelAndView; /** * * @author Temdegon */ @Controller public class AnswerController { private TopicService topicService; private final Logger logger = LoggerFactory.getLogger(AnswerController.class); private final SecurityService securityService; @Autowired public AnswerController(TopicService topicService, SecurityService securityService) { this.topicService = topicService; this.securityService = securityService; } @RequestMapping(method = RequestMethod.GET, value = "/answer") public ModelAndView answer(@RequestParam("topicId") Long topicId) { logger.info("Answering to the topic " + topicId); if (securityService.getCurrentUser() != null) { ModelAndView mav = new ModelAndView("answer"); mav.addObject("topicId", topicId); return mav; } else { logger.info("User doesn't logged in. Redirect to the login page"); return new ModelAndView("redirect:/login.html"); } } @RequestMapping(method = RequestMethod.POST, value = "/answer") public ModelAndView answer(@RequestParam("topicId") Long topicId, @RequestParam("bodytext") String bodyText) { topicService.addAnswer(topicId, bodyText); return new ModelAndView("redirect:/topics/" + topicId + ".html"); } }