RedisLockRegistry分布式锁

淸氺

已于 2022-10-10 09:57:00 修改

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文章标签： java

于 2022-04-06 11:28:54 首次发布

本文链接：https://blog.youkuaiyun.com/qq_39699665/article/details/123985887

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1.添加Maven依赖

<!-- redis -->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.integration</groupId>
    <artifactId>spring-integration-redis</artifactId>
</dependency>

2.注册RedisLockRegistry

@Configuration
public class RedisLockConfig {

    @Bean
    public RedisLockRegistry redisLockRegistry(RedisConnectionFactory redisConnectionFactory) {
         //第一个参数redisConnectionFactory
         //第二个参数registryKey，分布式锁前缀，设置为项目名称会好些
         //该构造方法对应的分布式锁，默认有效期是60秒.可以自定义
         return new RedisLockRegistry(redisConnectionFactory, "boot-launch");
         //return new RedisLockRegistry(redisConnectionFactory, "boot-launch",60);
     }
}

3.使用RedisLockRegistry

import org.springframework.integration.redis.util.RedisLockRegistry;
import java.util.concurrent.locks.Lock;

@Autowired
private RedisLockRegistry redisLockRegistry;

public voidinputPatrolCheckResult(TicketTask ticketTask, int resultType, String desc){
    Lock lock = redisLockRegistry.obtain("锁名" + uuid);
    if (lock.tryLock()) {
        try {
            // 这里添加代码块

        } finally {
            lock.unlock();
        }
    } else {
        logger.info("正在处理中，请勿重复提交");
    }
}