/*******************************************************************\*                                                                   **			   LightningBoard			    **                                                                   **          http://sourceforge.net/projects/lightningboard/          **			                                            **	            Copyright (c) 2002 Xiaobo Liu	            **                                                                   ***********************************************************************                        LICENSE INFORMATION                        **                                                                   **  LightningBoard is free software; you can redistribute it and/or  **  modify it under the terms of the GNU General Public License as   **  published by the Free Software Foundation; either version 2 of   **  the License, or any later version.                               **                                                                   **  We don't charge anything for the use of LightningBoard, we only  **  require you to keep the copyright present on your site and in    **  the source files.                                                **                                                                   **  LightningBoard 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 **  General Public License for more details.                         **                                                                   *\*******************************************************************/package liuxiaobo.lb.action;import java.io.*;import javax.servlet.*;import javax.servlet.http.*;import liuxiaobo.util.*;import liuxiaobo.lb.*;import liuxiaobo.lb.dao.*;import liuxiaobo.lb.bean.*;public class TopicAction  {  public String excute(HttpServletRequest request, HttpServletResponse response)      throws IOException, ServletException,ActionException {      int t_id =StringUtil.parseInt(request.getParameter("t_id"));      TopicDAO topicDAO=new TopicDAO();      TopicBean topicBean=topicDAO.execute(t_id);      if (topicBean!=null){        request.setAttribute("topicBean",topicBean);        return "/topic.jsp";      }  else {        request.setAttribute("actionMessage",new ActionMessage("no_such_topic"));        return "/actionMessage.jsp";      }  }}