需要引入
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
之前是3.0.xsd mvc:exclude-mapping 报错 需要改成3.2.xsd
<mvc:interceptors>
<mvc:interceptor>
<!-- 需拦截的地址 -->
<!-- 一级目录 -->
<mvc:mapping path="/**" />
<mvc:exclude-mapping path="/api*"/>
<bean class="com.xw.interceptor.LoginInterceptor"/>
</mvc:interceptor>
</mvc:interceptors>
拦截器类 实现 HandlerInterceptor
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;/*** @author 12561*/
public class LoginInterceptor implements HandlerInterceptor {@Overridepublic boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {HttpSession session = request.getSession();User user= (User)session.getAttribute("user");/*** 判断session有没有失效*/if (user==null || "".equals(user)){System.out.println("session失效");/*跳转到500页面 然后500在弹登录超时，2秒后自动跳转到登录页*/response.sendRedirect("/500.jsp");return false;}else{System.out.println("session验证通过");return true;}}@Overridepublic void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {}@Overridepublic void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {}
}
500 页面
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE html>
<html><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>H+ 后台主题UI框架 - 500错误</title><meta name="keywords" content="H+后台主题,后台bootstrap框架,会员中心主题,后台HTML,响应式后台"><meta name="description" content="H+是一个完全响应式，基于Bootstrap3最新版本开发的扁平化主题，她采用了主流的左右两栏式布局，使用了Html5+CSS3等现代技术"><link rel="shortcut icon" href="favicon.ico"> <link href="/static/css/bootstrap.min.css?v=3.3.5" rel="stylesheet"><link href="/static/css/font-awesome.min.css?v=4.4.0" rel="stylesheet"><link href="/static/css/animate.min.css" rel="stylesheet"><link href="/static/css/style.min.css?v=4.0.0" rel="stylesheet"><base target="_blank"><script src="/static/js/jquery.min.js"></script><script src="/static/layui/layui.js"></script></head><body class="gray-bg"><%--<div class="middle-box text-center animated fadeInDown">--%><%--<h1>500</h1>--%><%--<h3 class="font-bold">服务器内部错误</h3>--%><%--<div class="error-desc">--%><%--服务器好像出错了...--%><%--<br/>您可以返回看看--%><%--<br/><a href="/login.jsp" class="btn btn-primary m-t">主页</a>--%><%--</div>--%><%--</div>--%><script src="/static/js/jquery.min.js?v=2.1.4"></script><script src="/static/js/bootstrap.min.js?v=3.3.5"></script><script type="text/javascript" src="http://tajs.qq.com/stats?sId=9051096" charset="UTF-8"></script>
</body><script>layui.use('layer', function(){var layer = layui.layer ;layer.msg('您的登录已过期，请重新登录',{icon: 1,time: 2000 //2秒关闭（如果不配置，默认是3秒）},function () {window.parent.location.href="/login.jsp";});});
</script>
</html>
