/**
     * token校验
     */
    @GetMapping("/checkToken")
    @ResponseBody
    public void checkToken(HttpServletRequest request, HttpServletResponse response) throws Exception {

        log.info("========WechatController========= ");


        Enumeration pNames = request.getParameterNames();
        while (pNames.hasMoreElements()) {
            String name = (String) pNames.nextElement();
            String value = request.getParameter(name)