redis 过期监听配置

package org.jeecg.config;

import java.lang.reflect.Method;
import java.time.Duration;
import java.util.Arrays;

import javax.annotation.Resource;

import org.jeecg.common.constant.CacheConstant;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cache.interceptor.KeyGenerator;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.cache.RedisCacheWriter;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.listener.RedisMessageListenerContainer;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import com.fasterxml.jackson.annotation.JsonAutoDetect.Visibility;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.ObjectMapper.DefaultTyping;

import static java.util.Collections.singletonMap;

@Configuration
@EnableCaching // 开启缓存支持
public class RedisConfig extends CachingConfigurerSupport {

    @Resource
    private LettuceConnectionFactory lettuceConnectionFactory;

//    /**
//     * @description 自定义的缓存key的生成策略 若想使用这个key
//     *              只需要讲注解上keyGenerator的值设置为keyGenerator即可</br>
//     * @return 自定义策略生成的key
//     */
//    @Override
//    @Bean
//    public KeyGenerator keyGenerator() {
//        return new KeyGenerator() {
//            @Override
//            public Object generate(Object target, Method method, Object... params) {
//                StringBuilder sb = new StringBuilder();
//                sb.append(target.getClass().getName());
//                sb.append(method.getDeclaringClass().getName());
//                Arrays.stream(params).map(Object::toString).forEach(sb::append);
//                return sb.toString();
//            }
//        };
//    }

    /**
     * RedisTemplate配置
     *
     * @param lettuceConnectionFactory
     * @return
     */
    @Bean
    public RedisTemplate<String, Object> redisTemplate(LettuceConnectionFactory lettuceConnectionFactory) {
        // 设置序列化
        Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer<Object>(Object.class);
        ObjectMapper om = new ObjectMapper();
        om.setVisibility(PropertyAccessor.ALL, Visibility.ANY);
        om.enableDefaultTyping(DefaultTyping.NON_FINAL);
        jackson2JsonRedisSerializer.setObjectMapper(om);
        // 配置redisTemplate
        RedisTemplate<String, Object> redisTemplate = new RedisTemplate<String, Object>();
        redisTemplate.setConnectionFactory(lettuceConnectionFactory);
        RedisSerializer<?> stringSerializer = new StringRedisSerializer();
        redisTemplate.setKeySerializer(stringSerializer);// key序列化
        redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);// value序列化
        redisTemplate.setHashKeySerializer(stringSerializer);// Hash key序列化
        redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer);// Hash value序列化
        redisTemplate.afterPropertiesSet();
        return redisTemplate;
    }

    /**
     * 缓存配置管理器
     *
     * @param factory
     * @return
     */
    @Bean
    public CacheManager cacheManager(LettuceConnectionFactory factory) {
        // 配置序列化（缓存默认有效期 6小时）
        RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig().entryTtl(Duration.ofHours(6));
        RedisCacheConfiguration redisCacheConfiguration = config.serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer()))
                                                                .serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(new GenericJackson2JsonRedisSerializer()));
        
        // 以锁写入的方式创建RedisCacheWriter对象
        //RedisCacheWriter writer = RedisCacheWriter.lockingRedisCacheWriter(factory);
        // 创建默认缓存配置对象
        /* 默认配置，设置缓存有效期 1小时*/
        //RedisCacheConfiguration defaultCacheConfig = RedisCacheConfiguration.defaultCacheConfig().entryTtl(Duration.ofHours(1));
        /* 自定义配置test:demo 的超时时间为 5分钟*/
        RedisCacheManager cacheManager = RedisCacheManager.builder(RedisCacheWriter.lockingRedisCacheWriter(factory)).cacheDefaults(redisCacheConfiguration)
                .withInitialCacheConfigurations(singletonMap(CacheConstant.TEST_DEMO_CACHE, RedisCacheConfiguration.defaultCacheConfig().entryTtl(Duration.ofMinutes(5)).disableCachingNullValues()))
                .transactionAware().build();
        return cacheManager;
    }

    /**
     * 监听redis的过期事件
     */
    @Bean
    RedisMessageListenerContainer container(RedisConnectionFactory connectionFactory) {
        RedisMessageListenerContainer container = new RedisMessageListenerContainer();
        container.setConnectionFactory(connectionFactory);
        return container;
    }

}

package org.jeecg.modules.PcDataPush.listener;
/**
 * #Description //TODO 监听redis中缓存工单的key
 * #Author 
 * #Date 2021/8/5
 * #version 1.0
 **/
@Component
@Slf4j
public class AlertToTicketRedisListener extends KeyExpirationEventMessageListener {

    @Value("${redis_key_listener}")
    private boolean ticketSimulateBtn;

    @Value("${oss.ticket.apikey}")
    private String apikey;

    @Autowired
    private RedisUtil redisUtil;

    public AlertToTicketRedisListener(RedisMessageListenerContainer listenerContainer) {
        super(listenerContainer);
    }

    public void onMessage(Message message, byte[] bytes) {
        log.info("触发时间:{}", new Date());
        if (ticketSimulateBtn) {
            String remarkKey = "TIC_" + message.toString();
            String remarkKeys = "CLR_" + message.toString();
            Object data = redisUtil.get(remarkKey);
            Object datas = redisUtil.get(remarkKeys);
           
    }
}

在set key的时候设置好过期时间即可