loginaction.java

雷霆论坛是用J2EE技术开发的功能强大、扩展性强、易于定制

package lightningboard.action;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import lightningboard.Action;
import lightningboard.util.StringUtil;
import lightningboard.ActionException;
import lightningboard.ActionMessage;
import lightningboard.dao.DAOFactory;
import lightningboard.dao.LoginDAO;
import lightningboard.bean.LoginBean;

public class LoginAction  implements Action  {
  public String excute(HttpServletRequest request, HttpServletResponse response)
      throws IOException, ServletException,ActionException{
      String u_name=request.getParameter("u_name");
      u_name=StringUtil.escapeSQLTags(u_name);
      String u_password=request.getParameter("u_password");
      u_password=StringUtil.escapeSQLTags(u_password);
     if (StringUtil.nullOrBlank(u_name)||StringUtil.nullOrBlank(u_password)){
        request.setAttribute("actionMessage",new ActionMessage("blank_error"));
        return "/actionMessage.jsp";
      }
      DAOFactory daof=DAOFactory.getDAOFactory();
      LoginDAO loginDAO=daof.getLoginDAO();
      LoginBean loginBean=loginDAO.execute(u_name);
      if (loginBean!=null&&u_password.equals(loginBean.getU_password())){
        HttpSession session = request.getSession();
        session.setMaxInactiveInterval(-1);
        session.setAttribute("loginBean",loginBean);
        response.sendRedirect("user.do?u_id="+loginBean.getU_id());
        return null;
      }else{
        request.setAttribute("actionMessage",new ActionMessage("login_error"));
        return "/actionMessage.jsp";
      }
  }
}