logoutaction.java

JSP+Struts+Hibernate进行网络开发的一个实例

package cn.com.zzb.eshopping.logon;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
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 cn.com.zzb.eshopping.Constants;
import cn.com.zzb.eshopping.model.User;
public class LogoutAction extends Action{
	public ActionForward execute(ActionMapping mapping,
            ActionForm form,
            HttpServletRequest request,
            HttpServletResponse response) throws Exception
    {
		HttpSession session = request.getSession();
		User user = (User)session.getAttribute(Constants.CURRENT_USER);
		if(user!=null)
			session.removeAttribute(Constants.CURRENT_USER);		
		return (mapping.findForward(Constants.RETURN_INDEX));		
    }
}