java 在Jetty9中使用HttpSessionListener和Filter
发布时间:2020-12-14 14:27:11 所属栏目:Java 来源:网络整理
导读:java 在Jetty9中使用HttpSessionListener和Filter HttpSessionListener 当Session创建或销毁的时候被调用 示例代码: class MyHttpSessionListener implements HttpSessionListener { @Override public void sessionCreated(HttpSessionEvent httpSessionEven
java 在Jetty9中使用HttpSessionListener和Filter HttpSessionListener 当Session创建或销毁的时候被调用 示例代码: class MyHttpSessionListener implements HttpSessionListener { @Override public void sessionCreated(HttpSessionEvent httpSessionEvent) { System.out.println("sessionCreated"); } @Override public void sessionDestroyed(HttpSessionEvent httpSessionEvent) { System.out.println("sessionDestroyed"); } } 注册方法: ServletContextHandler.getSessionHandler().addEventListener(new MyHttpSessionListener()); 注意: 若整个请求中都没有用到Session,则不会生成它,也不会调用Listener Filter 当客户端请求数据时被调用 示例代码: class MyFilter implements Filter { public MyFilter() { } @Override public void init(FilterConfig filterConfig) throws ServletException { } @Override public void doFilter(ServletRequest servletRequest,ServletResponse servletResponse,FilterChain filterChain) throws IOException,ServletException { if (servletRequest instanceof HttpServletRequest) { HttpServletRequest httpRequest = (HttpServletRequest) servletRequest; System.out.println(httpRequest.getServletPath()); } filterChain.doFilter(servletRequest,servletResponse); } @Override public void destroy() { } } 注册方法: ServletContextHandler.addFilter(new FilterHolder(new MyFilter()),"/*",EnumSet.allOf(DispatcherType.class)); 注意: 若请求的路径错误,则不会触发Filter 感谢阅读,希望能帮助到大家,谢谢大家对本站的支持! (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |