logoutaction.java

来自「JSP＋Struts实现的用户登录系统 数据库：mysql数据库； 技术平台」· Java 代码 · 共 23 行

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;
public class LogoutAction extends Action{
	public ActionForward execute(ActionMapping mapping,
            ActionForm form,
            HttpServletRequest request,
            HttpServletResponse response) throws Exception
    {
		HttpSession session = request.getSession();
		String username = (String)session.getAttribute(Constants.CURRENT_USER);
		if(username!=null)
			session.removeAttribute(Constants.CURRENT_USER);		
		return (mapping.findForward(Constants.RETURN_INDEX));		
    }
}