logoutaction.java

来自「一个基本的图书馆管理系统」· Java 代码 · 共 48 行

package c18.struts.action;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

import c18.service.UserService;
import c18.service.UserServiceImpl;
import c18.struts.action.exception.ActionException;

/** 
 * 
 * 退出Action类
 * @struts.action path="/logout" scope="request" validate="true"
 * @struts.action-forward name="login" path="/login.jsp"
 */
public class LogoutAction extends Action{
    private static final Log log = LogFactory.getLog(LogoutAction.class);
	/** 
	 * Method execute
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		String reqpage = request.getParameter("pagename");
		ActionForward actionforward = mapping.findForward(reqpage);

		//清除用户登录信息
		try {
			UserService userservice = new UserServiceImpl(); 
			userservice.logout(request, response);
		} catch (ActionException e) {
			log.error(e);
		}
		return actionforward;
	}
}