转自：https://www.cnblogs.com/wangyunhong/articles/16505079.html

1.redis配置

1.打开conf/redis.conf 文件，取消注释：notify-keyspace-events Ex

 2.重启redis

3.如果设置了密码需要重置密码：config set requirepass ****

3.验证配置是否生效

　　步骤一：进入redis客户端：redis-cli

　　步骤二：执行 CONFIG GET notify-keyspace-events ，如果有返回值证明配置成功，如果没有执行步骤三

　　步骤三：执行CONFIG SET notify-keyspace-events "Ex"，再查看步骤二是否有值

注意：重置密码和重置配置是否每次重启redis都需要重新设置看个人需要。

2.redis的监听conf

package com.gf.ecrm.redislistenerconfig;import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.listener.RedisMessageListenerContainer;import javax.annotation.Resource;@Configuration
public class RedisListenerConfig {@Resourceprivate RedisConnectionFactory redisConnectionFactory;@Resourceprivate RedisKeyExpirationListener redisExpiredListener;@Beanpublic RedisMessageListenerContainer redisMessageListenerContainer() {RedisMessageListenerContainer redisMessageListenerContainer = new RedisMessageListenerContainer();redisMessageListenerContainer.setConnectionFactory(redisConnectionFactory);//监听所有key的过期事件redisMessageListenerContainer.addMessageListener(redisExpiredListener, redisExpiredListener.getTopic());return redisMessageListenerContainer;}}

3.监听业务代码

package com.gf.ecrm.redislistenerconfig;import lombok.Data;
import org.springframework.data.redis.connection.Message;
import org.springframework.data.redis.connection.MessageListener;
import org.springframework.data.redis.listener.PatternTopic;
import org.springframework.stereotype.Component;@Data
@Component
public class RedisKeyExpirationListener implements MessageListener {//监听的主题(只监听redis数据库1，如果要监听redis所有的库，把1替换为*)public final PatternTopic topic = new PatternTopic("__keyevent@1__:expired");/*** Redis失效事件 key** @param message* @param pattern*/@Overridepublic void onMessage(Message message, byte[] pattern) {String expiraKey = message.toString();System.out.println(expiraKey);}
}