重定向后sessionid不一致

 

@RequestMapping("/xxxx")
public String index(String code, HttpServletRequest request,HttpServletResponse response) {

    try {

        HttpSession session = request.getSession();
        Cookie cookies[] = request.getCookies();
        if (cookies != null) {
            for (Cookie cookie : cookies) {
                if (cookie.getName().equals("JSESSIONID")) {
                    String JSESSIONID = cookie.getValue();
                    //把sessonId给前台
                    response.getWriter().write(JSESSIONID);
                    if (!session.getId().equals(JSESSIONID)) {
                        logger.error(
                                    "当前会话的sessionId为：" + session.getId() + 
                                     "微信重定向回来的会话的sessionId为：" + JSESSIONID);
                    }
                    break;
                }
            }
        }

 

问题：当前会话的sessionId和微信重定向以后会话的sessionid不一致，如何解决？请大神指点！