spring boot 配置cacheManager EnableCaching EnableCaching-Toy模板网

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fast json 的配置 cacheManage


@Configuration
public class ConfigRedisCacheManager {
    // 缓存自动过期时间
    private long expire = 4;

    static {
        ParserConfig.getGlobalInstance().addAccept("com");
        ParserConfig.getGlobalInstance().setAutoTypeSupport(true);
    }

    @Bean
    @Primary
    public CacheManager cacheManager(RedisConnectionFactory redisConnectionFactory) {
        RedisCacheConfiguration cacheConfiguration = RedisCacheConfiguration.defaultCacheConfig()
                .disableCachingNullValues()
                .entryTtl(Duration.ofSeconds(expire))
                .serializeKeysWith(keySerializationPair())
                .serializeValuesWith(valueSerializationPair());

        return RedisCacheManager.builder(redisConnectionFactory)
                .cacheDefaults(cacheConfiguration)
                .build();
    }

    private RedisSerializationContext.SerializationPair<String> keySerializationPair() {
        return RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer());
    }

    private RedisSerializationContext.SerializationPair<Object> valueSerializationPair() {
        return RedisSerializationContext.SerializationPair.fromSerializer(new FastJsonRedisSerializer<>());
    }

    public class FastJsonRedisSerializer<T> implements RedisSerializer<T> {
        @Override
        public byte[] serialize(T t) throws SerializationException {
            if (t == null) {
                return new byte[0];
            }
            try {
                return JSON.toJSONBytes(t, SerializerFeature.WriteClassName);
                //return JSON.toJSONBytes(t);
            } catch (Exception ex) {
                throw new SerializationException("Could not write JSON: " + ex.getMessage(), ex);
            }
        }

        @SneakyThrows
        @Override
        public T deserialize(byte[] bytes) throws SerializationException {
            String data = new String(bytes, "UTF-8");
            T result = (T) JSON.parse(data);
            return result;
        }
    }
}

jackson 方式配置 cacheManager


    /**
     * RedisCacheConfiguration Bean
     *
     * 参考 org.springframework.boot.autoconfigure.cache.RedisCacheConfiguration 的 createConfiguration 方法
     */
    @Bean
    @Primary
    public RedisCacheConfiguration redisCacheConfiguration(CacheProperties cacheProperties) {
        // 设置使用 JSON 序列化方式
        RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig();


        //config = config.serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(RedisSerializer.json()));

        Jackson2JsonRedisSerializer serializer = new Jackson2JsonRedisSerializer(Object.class);
        ObjectMapper objectMapper = JsonMapper.builder().addModule(new JavaTimeModule()).build();
        objectMapper.activateDefaultTyping(objectMapper.getPolymorphicTypeValidator(), ObjectMapper.DefaultTyping.EVERYTHING);
        serializer.setObjectMapper(objectMapper);
        config = config.serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(serializer));


        // 设置 CacheProperties.Redis 的属性
        CacheProperties.Redis redisProperties = cacheProperties.getRedis();
        if (redisProperties.getTimeToLive() != null) {
            config = config.entryTtl(redisProperties.getTimeToLive());
        }
        if (redisProperties.getKeyPrefix() != null) {
            config = config.prefixCacheNameWith(redisProperties.getKeyPrefix());
        }
        if (!redisProperties.isCacheNullValues()) {
            config = config.disableCachingNullValues();
        }
        if (!redisProperties.isUseKeyPrefix()) {
            config = config.disableKeyPrefix();
        }
        return config;
    }

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