importredis.clients.jedis.Jedis;publicclassDistributedLockExample{publicstaticvoidmain(String[]args){Jedis jedis=newJedis("localhost",6379);String lockKey="my_distributed_lock";String identifier="unique_id";//
importredis.clients.jedis.Jedis;publicclassDistributedLockExample{privateJedisjedis;publicDistributedLockExample(){jedis=newJedis("localhost",6379);}publicbooleanacquireLock(StringlockKey,StringrequestId,intexpireTime){Longresult=jedis.setnx(lockKey,requestId);if(result==1){jedis.expire(lockKey,expireTime)...
importredis.clients.jedis.Jedis;publicclassDistributedLockExample{publicstaticvoidmain(String[] args){Jedisjedis=newJedis("localhost",6379);StringlockKey="my_distributed_lock";Stringidentifier="unique_id";// Replace with a unique identifier for your nodeintlockTimeout=5000;// Lock expiration time in...
String indentifier = lock.lockWithTimeout("resource", 5000, 1000); System.out.println(Thread.currentThread().getName() + "获得了锁"); System.out.println(--n); lock.releaseLock("resource", indentifier); } } 模拟线程进行秒杀服务 package com.example.demo.test; import com.example.demo.servic...
import redis.clients.jedis.Jedis; public class DistributedLockExample { public static void main(String[] args) { Jedis jedis = new Jedis("localhost", 6379); String lockKey = "my_distributed_lock"; String identifier = "unique_id"; // Replace with a unique identifier for your node int lock...
redis.StrictRedis(host='redis3.example.com', port=6379, db=0) ] def acquire_lock(self): while self.retry_count > 0: start_time = time.time() n = 0 for redis_conn in self.redis_nodes: if redis_conn.set(self.lock_name, 1, ex=self.lock_timeout, nx=True): ...
framework.dao.DataAccessException;importorg.springframework.data.redis.connection.RedisConnection;importorg.springframework.data.redis.core.RedisCallback;importorg.springframework.data.redis.core.RedisTemplate;importorg.springframework.data.redis.serializer.StringRedisSerializer;/*** Redis distributed lock ...
importorg.redisson.Redisson;importorg.redisson.api.RLock;importorg.redisson.api.RedissonClient;importorg.redisson.config.Config;publicclassDistributedLockExample{privatestaticfinalStringLOCK_NAME="myLock";publicstaticvoidmain(String[]args){// 创建Redisson客户端Configconfig=newConfig();config.useSingleServer(...
DistributedLock开源项目中有多种实现方式,我们主要讨论Redis中的分布式锁实现。 二、Redis分布式锁的实现原理 基础实现 Redis 本身可以被多个客户端共享访问,正好就是一个共享存储系统,可以用来保存分布式锁,而且 Redis 的读写性能高,可以应对高并发的锁操作场景。
注解方式调用如下,在需要加锁的定时任务的执行方法头部,添加@DistributedLock(value = "redis-lock", expireSeconds = 11)即可进行加锁、解锁等操作。 锁自动释放时间默认为10秒,这个时间需要你根据自己的业务执行时间自行指定。 我这里以spring schedule定时任务为例,用其他的定时任务同理,只需要添加注解。