RedissonLock 的正确使用方案

 maven依赖

        <dependency>
            <groupId>org.redisson</groupId>
            <artifactId>redisson</artifactId>
            <version>3.9.1</version>
        </dependency>

 注入实例 yml文件 配置host  密码 spring.redis.host  等

@Configuration
public class RedissonConfig {
    @Autowired
    private RedisProperties properties;

    @Bean
    public RedissonClient redisson() {
      
        Config config = new Config();
         // 单机模式
        config.useSingleServer()
                .setAddress("redis://"+properties.getHost()+":" +properties.getPort())
                .setDatabase(properties.getDatabase())
                .setPassword(properties.getPassword());
        return Redisson.create(config);
    }
}

 业务代码

        RLock lock = redissonClient.getLock("testLock");
     
        try {
            //尝试加锁，最多等待3秒，上锁以后5秒自动解锁
            boolean res = lock.tryLock(3, 5, TimeUnit.SECONDS);
            if (res) {
                // 业务代    
            }
        } catch (InterruptedException e) {
            log.error("分布式锁{}获取失败", lock.getName());
            throw new BusinessProcessFailException("分布式锁【" + lock.getName() + "】获取失败", ErrorCode.SYSTEM_EXCEPTION.getCode());
        } finally {
            //判断要解锁的key是否被当前线程持有。
           if (lock.isLocked() && lock.isHeldByCurrentThread()) {
                lock.unlock();
            }
        }