redisson 分布式锁

        <dependency>
            <groupId>org.redisson</groupId>
            <artifactId>redisson</artifactId>
            <version>3.11.3</version>
        </dependency>

package morning.cat.redis.redisson;

import org.junit.BeforeClass;
import org.junit.Test;
import org.redisson.Redisson;
import org.redisson.api.RLock;
import org.redisson.config.Config;

import java.util.concurrent.TimeUnit;

/**
 * @describe: 类描述信息
 * @author: morningcat.zhang
 * @date: 2019/9/4 7:25 PM
 */
public class RedissonTest {

    private static Redisson redisson = null;

    @BeforeClass
    public static void init() {
        Config config = new Config();
        config.useSingleServer().setAddress("redis://127.0.0.1:6379").setDatabase(0);
        // config.useSingleServer().setAddress("redis://111.111.111.111:6379").setPassword("").setDatabase(0);
        redisson = (Redisson) Redisson.create(config);
    }


    @Test
    public void test1() {

        String loclKey = "helloredisoon001";
        RLock rLock = redisson.getLock(loclKey);
        try {
            rLock.lock(30, TimeUnit.SECONDS);

            // 业务处理
            System.out.println("处理完成");
        } finally {
            System.out.println("over");
            rLock.unlock();
        }
    }

}

来源：https://my.oschina.net/mengzhang6/blog/3102018