shiro 退出过滤器 logout ---退出清除HTTPSession数据

重写LogouFilter类

import org.apache.shiro.web.filter.authc.LogoutFilter;

public class ShiroLogoutFilter extends LogoutFilter {

    @Override

    protected boolean preHandle(ServletRequest request, ServletResponse response) throws Exception {

        //清除HTTPSession的用户信息

        HttpServletRequest httpServletRequest=(HttpServletRequest) request;

        HttpSession session = httpServletRequest.getSession();

        if (session.getAttribute("user")!=null) {

            session.removeAttribute("user");

        }

        System.out.println("=HTTPSession用户数据被清空了=");

        return super.preHandle(httpServletRequest, response);

    }

}