springBoot项目监听redis中间件key变化

import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.data.redis.RedisProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.Message;
import org.springframework.data.redis.connection.MessageListener;
import org.springframework.data.redis.connection.RedisConnection;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.listener.PatternTopic;
import org.springframework.data.redis.listener.RedisMessageListenerContainer;
import org.springframework.util.StringUtils;
import java.nio.charset.StandardCharsets;
import java.util.Properties;

@Configuration
public class RedisListenerConfig {

    @Autowired
    private RedisConnectionFactory redisConnectionFactory;

    @Autowired
    private RedisProperties redisProperties;

    @Bean
    public RedisMessageListenerContainer redisMessageListenerContainer() {
        RedisMessageListenerContainer container = new RedisMessageListenerContainer();
        container.setConnectionFactory(redisConnectionFactory);
        return container;
    }

    @Bean
    public RedisKeyChangeListener redisKeyChangeListener() {
        return new RedisKeyChangeListener(redisMessageListenerContainer());
    }

    @Slf4j
    public static class RedisKeyChangeListener implements MessageListener {

        /**
         * KEA 指配置的模式
         */
        private String keyspaceNotificationsConfigParameter = "KEA";

        public RedisKeyChangeListener(RedisMessageListenerContainer listenerContainer) {
            if (StringUtils.hasText(keyspaceNotificationsConfigParameter)) {
                RedisConnection connection = listenerContainer.getConnectionFactory().getConnection();
                try {
                    Properties config = connection.getConfig("notify-keyspace-events");
                    if (!StringUtils.hasText(config.getProperty("notify-keyspace-events"))) {
                        connection.setConfig("notify-keyspace-events", keyspaceNotificationsConfigParameter);
                    }
                } finally {
                    connection.close();
                }
            }
            // 监听规则
            // new PatternTopic("__keyevent@*")  监听 整个redis数据库 的所有事件
            // new PatternTopic("__keyevent@0__:set")  监听 redis 0号数据库 的所有 set 事件
            // new PatternTopic("__keyspace@7__:myKey*")  监听 redis 7号数据库 中键名为 myKey开头的 所有事件
            listenerContainer.addMessageListener(this, new PatternTopic("__keyspace@7__:incar*"));
        }
        @Override
        public void onMessage(Message message, byte[] pattern) {
            log.info("key发生变化类型:[ {} ],key监听正则:[ {} ],变化key:[ {} ]", message, new String(pattern, StandardCharsets.UTF_8), new String(message.getChannel(), StandardCharsets.UTF_8));
        }
    }
}

参考：

redis中文文档相关章节
redis官方文档相关章节

SpringBoot：监控Redis中的某个Key的变化(自定义监听器)