关于拦截器超时的使用

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拦截器：

<!-- 拦截器集合 -->     <mvc:interceptors>      <!-- mvc 登陆鉴权拦截器 -->         <mvc:interceptor>       <!-- 需要拦截的URL -->         <mvc:mapping path="/*/**" />         <bean class="com.suning.rca.common.interceptor.AuthLoginInterceptor">          <!-- 登陆页面 -->            <property name="loginUrl" value="/index.html" />           <!--放行URL配置 -->            <property name="excludeList">               <list>                  <value>/login.do</value>                  <value>/generateQrCode.do</value>                  <value>/doLogin.do</value>                   <value>/checkDeviceLogin.do</value>                  <value>/index.do</value>                  <value>/error.do</value>                  <value>/checkPosBindState.do</value>                  <value>/logout.do</value>               </list>            </property>         </bean>      </mvc:interceptor>       <!-- session超时 -->        <mvc:interceptor>            <mvc:mapping path="/*/**" />            <bean class="com.suning.sdipospc.interceptor.SessionTimeoutInterceptor">                <property name="allowUrls">                    <list>                        <!-- 如果请求中包含以下路径，则不进行拦截 -->                        <value>/login.do</value>                      <value>/generateQrCode.do</value>                       <value>/doLogin.do</value>                       <value>/checkDeviceLogin.do</value>                      <value>/error.do</value>                      <value>/checkPosBindState.do</value>                      <value>/logout.do</value>                  </list>                </property>            </bean>        </mvc:interceptor>       </mvc:interceptors>

拦截器

public class SessionTimeoutInterceptor implements HandlerInterceptor {    private static final Logger LOGGER = LoggerFactory            .getLogger(SessionTimeoutInterceptor.class);    @Autowired    private LoginService loginService;      /**     * 放行URL     */    private List<String> allowUrls;    public void setAllowUrls(List<String> allowUrls) {        this.allowUrls = allowUrls;    }    @Override    public boolean preHandle(HttpServletRequest request,            HttpServletResponse response, Object handler) throws Exception {        LOGGER.info("SessionTimeoutInterceptor.preHandle enter.");        String requestUrl = request.getRequestURI().replace(                request.getContextPath(), "");        response.setContentType("text/html; charset=utf-8");        HttpSession session = request.getSession(true);        if (null != allowUrls && allowUrls.size() >= 1)            for (String url : allowUrls) {                if (requestUrl.contains(url)) {                    return true;                }            }        Object obj = session.getAttribute(SystemConstants.SEESION_IUSER);        LOGGER.info("====session对象currentUser="+obj);        LOGGER.info("====sessionId="+session.getId());        if (obj == null) {            String loginToken = CookiesUtil.getLoginTokenFromCookie(request);            String userId = CookiesUtil.getLoginUserIdFromCookie(request);            loginService.logout(loginToken, userId);            loginService.operatorLog(WebposConstants.StringCon.TWO,userId);            CookiesUtil.delCookie(request);            CookiesUtil.delOperator(request);            PrintWriter out = response.getWriter();            StringBuilder builder = new StringBuilder();            builder.append("<script type=\"text/javascript\" charset=\"UTF-8\">");//          builder.append("alert(\"页面过期，请重新登录\");");            builder.append("window.top.location.href=\""                    + SystemConstants.LOGIN_URL + "\"");            builder.append("</script>");            out.print(builder.toString());            out.close();        }        // 返回true，则这个方面调用后会接着调用postHandle(), afterCompletion()        return true;     }    @Override    public void postHandle(HttpServletRequest request,            HttpServletResponse response, Object handler,            ModelAndView modelAndView) throws Exception {        LOGGER.info("SessionTimeoutInterceptor.postHandle enter.");    }    @Override    public void afterCompletion(HttpServletRequest request,            HttpServletResponse response, Object handler, Exception ex)            throws Exception {        LOGGER.info("SessionTimeoutInterceptor.afterCompletion enter.");    }}

web.xml <session-config>    <session-timeout>15</session-timeout>    <cookie-config>        <path>/</path>    </cookie-config>  </session-config>

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