在springmvc配置文件中加入下面的代码，路由为"/login"的url还是会被拦截到拦截器中

拦截器LoginInterceptor

    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        HttpSession session = request.getSession();
        if (session.getAttribute(Constants.SESS_MANAGER) == null) {
            if (request.getHeader("x-requested-with") != null
                    && request.getHeader("x-requested-with").equalsIgnoreCase("XMLHttpRequest")){ //如果是ajax请求响应头会有，x-requested-with
                response.setHeader("sessionstatus", "timeout");//在响应头设置session状态
                response.setHeader("redirectUrl", request.getContextPath() + "/login");
            }else{
                String path = request.getRequestURI();////原页面

                //根据方法不同拼接参数
                String queryString="";
                if(request.getMethod().equals("GET")){
                    queryString = request.getQueryString();
                }else{
                    Enumeration params=request.getParameterNames();
                    while(params.hasMoreElements()){
                        String paraName=params.nextElement();
                        queryString+=paraName+"="+request.getParameter(paraName)+"&";
                    }
                }
                if (queryString!=null && (!queryString.equals(""))) {
                    path+="?"+queryString;
                }
                response.sendRedirect(request.getContextPath() + "/login");
            }
            return false;
        }else{
            return true;
        }
    }