网站开发人员职责,古风ppt模板,北京朝阳区房子多少钱一平米,网站左侧浮动代码设计一个简单的 RedisDistributedLock 类#xff0c;实现单例模式#xff0c;并包含基本的锁定机制。这个类将使用 Redis 来管理锁#xff0c;确保在分布式系统中资源的同步访问
import redis.clients.jedis.Jedis;public class RedisDistributedLock {private static Redi…设计一个简单的 RedisDistributedLock 类实现单例模式并包含基本的锁定机制。这个类将使用 Redis 来管理锁确保在分布式系统中资源的同步访问
import redis.clients.jedis.Jedis;public class RedisDistributedLock {private static RedisDistributedLock instance;private Jedis jedis;private final String redisHost;private final int redisPort;// 私有构造函数防止外部实例化private RedisDistributedLock(String host, int port) {this.redisHost host;this.redisPort port;this.jedis new Jedis(redisHost, redisPort);}// 公共静态方法返回唯一实例public static synchronized RedisDistributedLock getSingletonInstance(String host, int port) {if (instance null) {instance new RedisDistributedLock(host, port);}return instance;}// 尝试获取锁public boolean lockTransaction(String transactionId) {String key lock: transactionId;String result jedis.set(key, locked, NX, EX, 10); // 锁超时时间为10秒return OK.equals(result);}// 释放锁public void unlockTransaction(String transactionId) {String key lock: transactionId;jedis.del(key);}// 清理资源public void close() {jedis.close();}
}
