spring cache Redis 配置自定义过期时间

自定义RedisCacheConfig

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.cache.CacheManager;
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.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;

import java.time.Duration;
import java.util.HashMap;
import java.util.Map;

@Configuration
public class RedisCacheConfig {
    /**
     * MONTH_TIMEOUT 指定 key 过期时间 1个月
     */
    private static int MONTH_TIMEOUT = 2592000;
    /**
     * DAY_TIMEOUT 指定 key 过期时间 1天
     */
    private static int DAY_TIMEOUT = 86400;
    /**
     * DEFAULT_TIMEOUT_HOUR 默认 1小时过期
     */
    private static int DEFAULT_TIMEOUT_HOUR = 3600;

    @Bean
    public KeyGenerator simpleKeyGenerator() {
        return (o, method, objects) -> {
            StringBuilder stringBuilder = new StringBuilder();
            stringBuilder.append(o.getClass().getSimpleName());
            stringBuilder.append(".");
            stringBuilder.append(method.getName());
            stringBuilder.append("[");
            for (Object obj : objects) {
                stringBuilder.append(obj.toString());
            }
            stringBuilder.append("]");

            return stringBuilder.toString();
        };
    }

    @Bean
    public CacheManager cacheManager(RedisConnectionFactory redisConnectionFactory) {
        return new RedisCacheManager(
                RedisCacheWriter.nonLockingRedisCacheWriter(redisConnectionFactory),
                // 默认策略，未配置的 key 会使用这个
                this.getRedisCacheConfigurationWithTtl(DEFAULT_TIMEOUT_HOUR),
                // 指定 key 策略
                this.getRedisCacheConfigurationMap()
        );
    }

    private Map<String, RedisCacheConfiguration> getRedisCacheConfigurationMap() {
        Map<String, RedisCacheConfiguration> redisCacheConfigurationMap = new HashMap<>();
        redisCacheConfigurationMap.put("touchpoint:zone:getZoneList", this.getRedisCacheConfigurationWithTtl(MONTH_TIMEOUT));
        redisCacheConfigurationMap.put("touchpoint:zone:getSublevelAreaInfoByCode", this.getRedisCacheConfigurationWithTtl(MONTH_TIMEOUT));
        redisCacheConfigurationMap.put("touchpoint:dict:getServiceDict", this.getRedisCacheConfigurationWithTtl(MONTH_TIMEOUT));
        redisCacheConfigurationMap.put("touchpoint:org:getOrgListByUserId", this.getRedisCacheConfigurationWithTtl(DAY_TIMEOUT));
        return redisCacheConfigurationMap;
    }

    private RedisCacheConfiguration getRedisCacheConfigurationWithTtl(Integer seconds) {
        Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer<>(Object.class);
        ObjectMapper om = new ObjectMapper();
        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        jackson2JsonRedisSerializer.setObjectMapper(om);

        RedisCacheConfiguration redisCacheConfiguration = RedisCacheConfiguration.defaultCacheConfig();
        redisCacheConfiguration = redisCacheConfiguration.serializeValuesWith(
                RedisSerializationContext
                        .SerializationPair
                        .fromSerializer(jackson2JsonRedisSerializer)
        ).entryTtl(Duration.ofSeconds(seconds));

        return redisCacheConfiguration;
    }
}

常用命令

缓存

@Cacheable(cacheNames = "touchpoint:dict:getServiceDict", key = "#param.moudle+'-'+#param.dictCode")

将对应的cacheName全部删除

@CacheRemoveAll(cacheName = "touchpoint:dict:getServiceDict")

删除指定可以

@CacheEvict(cacheNames = "touchpoint:dict:getServiceDict", key = "#param.moudle+'-'+#param.dictCode")