导入依赖 根据springboot版本不同自行选择版本
<dependency>
<groupId>org.redisson</groupId>
<artifactId>redisson-spring-boot-starter</artifactId>
<version>3.15.3</version>
</dependency>
创建客户端
@Beanpublic RedissonClient redissonClient() {Config config = new Config();config.useSingleServer().setAddress("redis://192.168.232.100:6379");return Redisson.create(config);} //创建一个key 如果有这个key lock返回true 否则返回falseRLock lock = redissonClient.getLock("r_lock");//把全部商品信息放进redis中storeService.check();//如果trueif (hasLock) {try {String maota = stringRedisTemplate.opsForValue().get("store:1");Long maotao = Long.valueOf(maota);if (maotao > 0) {maotao = stringRedisTemplate.opsForValue().decrement("store:1");log.debug("售出茅台一瓶,还剩:{}瓶", maotao);new Thread(()->storeService.updateByBookId(1,1));return HttpResp.success("去库存成功");}} finally {//成功与否都删除keylock.unlock();log.debug("释放分布式锁成功");}}log.debug("去库存失败");return HttpResp.failed("去库存失败");
}
)
】)
