redis分布式锁

redis有一版客户端对分布式锁有很好的支持，所以我使用的是该客户端

首先添加客户端依赖

<dependency>
            <groupId>org.redisson</groupId>
            <artifactId>redisson-spring-boot-starter</artifactId>
            <version>3.10.2</version>
</dependency>

然后添加redis客户端的信息配置

spring.redis.host=localhost
spring.redis.port=6379
spring.redis.password=123456
spring.redis.timeout=3600
spring.redis.database=1
spring.redis.jedis.pool.max-active=8
spring.redis.jedis.pool.max-wait=1
spring.redis.jedis.pool.max-idle=500
spring.redis.jedis.pool.min-idle=0

最后添加工具类即可

package com.voole.platform.util;

import java.util.concurrent.TimeUnit;

import org.redisson.api.RLock;
import org.redisson.api.RedissonClient;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

/**
 * 
 * <P>Description:
 * 使用RFuture 异步获取锁 </P>
 * @ClassName: DistributedLockByRedis
 * @author 冯浩  2019年3月20日 上午9:53:41
 * @see TODO
 */
@Component
public class DistributedLockByRedis {
    
    @Autowired
    private RedissonClient client;
    
    public boolean lock(String key) {
        RLock lock = client.getLock(key);
        boolean trylock = false;
        try {
            trylock = lock.tryLock(60, TimeUnit.SECONDS);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return trylock;
    }
    
    public void release(String key) {
        RLock lock = client.getLock(key);
        if(lock.isLocked()) {
            lock.unlock();
        }
        
    }
}