springboot开启Redis缓存支持

开启缓存支持，只需要继承CachingConfigurerSupport 即可。代码如下：

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
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.ChannelTopic;
import org.springframework.data.redis.listener.RedisMessageListenerContainer;
import org.springframework.data.redis.listener.adapter.MessageListenerAdapter;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;@Slf4j
@EnableCaching
@Configuration
public class RedisConfig2 extends CachingConfigurerSupport {/*** redis消息通道名称* 消息同道用于监听redis的事件发布。当前事件属于自定义事件。* 发送消息的时候，使用redisTemplate.convertAndSend(REDIS_TOPIC_NAME, params); 即可*/public static final String REDIS_TOPIC_NAME="your_redis_topic";/*** RedisTemplate配置* 注意：我使用的是 LettuceConnectionFactory。大家一般使用RedisConnectionFactory 就行* @param lettuceConnectionFactory* @return*/@Beanpublic RedisTemplate<String, Object> redisTemplate(LettuceConnectionFactory lettuceConnectionFactory) {log.info(" --- redis config init --- ");Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer = jacksonSerializer();RedisTemplate<String, Object> redisTemplate = new RedisTemplate<String, Object>();redisTemplate.setConnectionFactory(lettuceConnectionFactory);RedisSerializer<String> stringSerializer = new StringRedisSerializer();// key序列化redisTemplate.setKeySerializer(stringSerializer);// value序列化redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);// Hash key序列化redisTemplate.setHashKeySerializer(stringSerializer);// Hash value序列化redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer);redisTemplate.afterPropertiesSet();return redisTemplate;}/*** redis 监听配置** @param redisConnectionFactory redis 配置* * @return*/@Beanpublic RedisMessageListenerContainer redisContainer(RedisConnectionFactory redisConnectionFactory,  MessageListenerAdapter commonListenerAdapter) {RedisMessageListenerContainer container = new RedisMessageListenerContainer();container.setConnectionFactory(redisConnectionFactory);container.addMessageListener(commonListenerAdapter, new ChannelTopic(REDIS_TOPIC_NAME));return container;}private Jackson2JsonRedisSerializer jacksonSerializer() {Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);ObjectMapper objectMapper = new ObjectMapper();objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);objectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);jackson2JsonRedisSerializer.setObjectMapper(objectMapper);return jackson2JsonRedisSerializer;}/*** 指定监听库* 注意：当前监听的是redis定义的事件。关于这部分的可以看我之前的博客，有关于事件的详解。* 博客：https://blog.csdn.net/qq_32605245/article/details/133171212*/@Beanpublic ChannelTopic expiredTopic() {return new ChannelTopic("__keyevent@1__:expired");}
}