业务需求是用户每天只能签到一次，而且签到后用户增加积分，所以把用户每次签到时放到redis 缓存里面，然后每天凌晨时再清除缓存，大概简单思想是这样的
直接看代码吧如下
@Transactional
@Override
public void signIn(Integer memberId) throws BizException {
if(memberId==null){
throw new BizException(ErrorCode.BIZ_EXCEPTION.getErrcode(), "签到用户id 不能为null");
}
String day = DateFormatUtils.format(new Date(), "yyyyMMdd");
String key = "signin:"+day;
Boolean sismember = redisClient.sismember(key, memberId.toString());
if(sismember){
throw new BizException(ErrorCode.BIZ_EXCEPTION.getErrcode(), "今天已经签到了");
}else{
redisClient.sadd(key, memberId.toString());
redisClient.expire(key, getRefreshTime());
addPointsRecord(memberId,IntegralType.SIGN_IN);//给用户增加积分
}
}
获取离凌晨 还有多久
/**
* 获取当前时间离明天凌晨还有多少小时
* @return
*/
public static int getRefreshTime(){
Calendar calendar = Calendar.getInstance();
int now = (int) (calendar.getTimeInMillis()/1000);
calendar.add(Calendar.DATE, 1);
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.HOUR_OF_DAY , 0);
return (int) (calendar.getTimeInMillis()/1000-now);
}
Controller
/**
* 签到
* @return
*/
@WeiXinLogin
@RequestMapping("/signIn")
public ResponseModel signIn(){
try {
Integer memberId = RequestContext.getContext().getUser().getMemberId();
memberApi.signIn(memberId);
return new ResponseModel();
} catch (BizException e) {
LOGGER.error("signIn error");
return new ResponseModel(e.getErrcode(), e.getErrm(), null);
}
}
