实现短信验证码5分钟有效时间

时间:2024-02-16 08:09:14

实现一个发送短信验证码的请求,要求5分钟之内重复请求,返回同一个验证码。
网上可找到几种方案:
如,存储数据库或缓存中。实现起来比较麻烦,舍弃;
另一种方式即本例,使用session存储。其他方式,暂未进一步了解

@RequestMapping(value = "sendMessage",method = RequestMethod.GET)
public Object sendMessage(final HttpServletRequest request){
    String phone=request.getParameter("phone");
    int times=userService.messageSendToday(phone);    //二次验证,单个手机号每日发送上限
    if(times <= MAX_PER_DAY){
        String checkCode=GenerateRandomCode.createRandomNumber(6);
        final HttpSession httpSession=request.getSession();
        httpSession.setAttribute("checkCode",checkCode);
        CheckCodeMessage checkCodeMessage=new CheckCodeMessage(phone,checkCode);
        try {
            HttpSender.batchSend(checkCodeMessage);
            //TimerTask实现5分钟后从session中删除checkCode
            final Timer timer=new Timer();
            timer.schedule(new TimerTask() {
                @Override
                public void run() {
                    httpSession.removeAttribute("checkCode");
                    System.out.println("checkCode删除成功");
                    timer.cancel();
                }
            },5*60*1000);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return "redirect:/index.jsp";
    }
}

Timer定时任务:

//TimerTask实现5分钟后从session中删除checkCode
final Timer timer=new Timer();
timer.schedule(new TimerTask() {
    @Override
    public void run() {
        httpSession.removeAttribute("checkCode");
        System.out.println("checkCode删除成功");
        timer.cancel();
    }
},5*60*1000);

 

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