分布式锁的实现

最新推荐文章于 2025-06-21 23:15:14 发布

原创最新推荐文章于 2025-06-21 23:15:14 发布 · 177 阅读

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#分布式

Redisson分布式锁
1.依赖

<dependency>
    <groupId>org.redisson</groupId>
    <artifactId>redisson</artifactId>
    <version>3.13.6</version>
</dependency>
<dependency>
    <groupId>org.redisson</groupId>
    <artifactId>redisson-spring-boot-starter</artifactId>
    <version>3.13.6</version>
</dependency>

2.配置

@Configuration
public class RedissionConfig {
    @Value("${spring.redis.host}")
    private String redisHost;

    @Value("${spring.redis.password}")
    private String password;

    private int port = 6379;

    @Bean
    public RedissonClient getRedisson() {
        Config config = new Config();
        config.useSingleServer().
                setAddress("redis://" + redisHost + ":" + port).
                setPassword(password);
        config.setCodec(new JsonJacksonCodec());
        return Redisson.create(config);
    }
}

3.启动分布式

@Resource
private RedissonClient redissonClient;

RLock rLock = redissonClient.getLock(lockName);
try {
    boolean isLocked = rLock.tryLock(expireTime, TimeUnit.MILLISECONDS);
    if (isLocked) {
        // TODO
        // 具体业务代码
                }
    } catch (Exception e) {
            rLock.unlock();
    }