set id 1
set name nezha
set id 2

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mset name nezha id 2

public Result seckillVoucher(Long voucherId) {
     Long userId = UserHolder.getUser().getId();
     long orderId = redisIdWorker.nextId("order");
     // 1.執(zhí)行l(wèi)ua腳本
     Long result = stringRedisTemplate.execute(
             SECKILL_SCRIPT,
             Collections.emptyList(),
             voucherId.toString(), userId.toString(), String.valueOf(orderId)
     );
     int r = result.intValue();
     // 2.判斷結(jié)果是否為0
     if (r != 0) {
         // 2.1.不為0 ，代表沒(méi)有購(gòu)買資格
         return Result.fail(r == 1 ? "庫(kù)存不足" : "不能重復(fù)下單");
     }
     // 3.返回訂單id
     return Result.ok(orderId);
 }

// 線程池
private static final ExecutorService SECKILL_ORDER_EXECUTOR = Executors.newSingleThreadExecutor();

/**
* 在類初始化完成后執(zhí)行
*/
@PostConstruct
private void init() {
    SECKILL_ORDER_EXECUTOR.submit(new VoucherOrderHandler());
}

// 阻塞隊(duì)列
private BlockingQueue<VoucherOrder> orderTasks = new ArrayBlockingQueue<>(1024 * 1024);
private class OrderHandler implements Runnable{

    @Override
    public void run() {
        while (true){
            try {
                doSomething();
            } catch (Exception e) {
                log.error("處理訂單異常", e);
            }
        }
    }
}

public class RefreshTokenInterceptor implements HandlerInterceptor {

    private StringRedisTemplate stringRedisTemplate;

    public RefreshTokenInterceptor(StringRedisTemplate stringRedisTemplate) {
        this.stringRedisTemplate = stringRedisTemplate;
    }

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        // 1、獲取請(qǐng)求頭中的token
        String token = request.getHeader("authorization");
        if (StrUtil.isBlank(token)) {
            return true;
        }
        // 2、基于TOKEN獲取redis中的用戶
        String key  = LOGIN_USER_KEY + token;
        Map<Object, Object> userMap = stringRedisTemplate.opsForHash().entries(key);
        // 3、判斷用戶是否存在
        if (userMap.isEmpty()) {
            return true;
        }
        // 5、將查詢到的hash數(shù)據(jù)轉(zhuǎn)為UserDTO
        UserDTO userDTO = BeanUtil.fillBeanWithMap(userMap, new UserDTO(), false);
        // 6、存在，保存用戶信息到 ThreadLocal
        UserHolder.saveUser(userDTO);
        // 7、刷新token有效期
        stringRedisTemplate.expire(key, LOGIN_USER_TTL, TimeUnit.MINUTES);
        // 8、放行
        return true;
    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        // 移除用戶
        UserHolder.removeUser();
    }
}