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RedisLock.java
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/
RedisLock.java
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package love.wangqi.version3_1;
import love.wangqi.Lock;
import love.wangqi.LockTemplate;
import love.wangqi.ScriptUtil;
import redis.clients.jedis.Jedis;
import java.util.Arrays;
import java.util.UUID;
/**
* @author: wangqi
* @description:
* @date: Created in 2018/8/7 上午11:30
*/
public class RedisLock extends LockTemplate implements Lock {
private ThreadLocal<String> uniqueId;
private String unlockScript;
public RedisLock() {
uniqueId = new ThreadLocal<>();
unlockScript = ScriptUtil.getScript("redis_unlock_3.lua");
}
@Override
protected Boolean lock(Jedis redis, String key, long timeout) {
uniqueId.set(UUID.randomUUID().toString());
String result = redis.set(key, uniqueId.get(), "NX", "EX", timeout);
if (result != null && result.equals("OK")) {
return true;
} else {
return false;
}
}
@Override
protected void unlock(Jedis redis, String key) {
redis.eval(unlockScript,
Arrays.asList(key),
Arrays.asList(uniqueId.get())
);
}
}