1、方式一：添加全局配置

配置方式参考前文：https://blog.csdn.net/u011943534/article/details/129164025

修改函数：getRedisCacheConfigurationWithTtl
添加两行配置：

        // 处理java.time下无法序列化的问题om.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);om.registerModule(new JavaTimeModule());

完整 的函数：

    private RedisCacheConfiguration getRedisCacheConfigurationWithTtl(Duration duration) {ObjectMapper om = new ObjectMapper();om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);om.activateDefaultTyping(LaissezFaireSubTypeValidator.instance, ObjectMapper.DefaultTyping.NON_FINAL, JsonTypeInfo.As.PROPERTY);// 处理java.time下无法序列化的问题om.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);om.registerModule(new JavaTimeModule());Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializerValue = new Jackson2JsonRedisSerializer<>(om, Object.class);RedisCacheConfiguration redisCacheConfiguration = RedisCacheConfiguration.defaultCacheConfig();RedisSerializationContext.SerializationPair<Object> objectSerializationPair = RedisSerializationContext.SerializationPair.fromSerializer(jackson2JsonRedisSerializerValue);redisCacheConfiguration = redisCacheConfiguration.serializeValuesWith(objectSerializationPair).entryTtl(duration);return redisCacheConfiguration;}

2、方式二：修改需要存入redis对象的LocalDateTime属性

@JsonDeserialize(using = LocalDateTimeDeserializer.class)
@JsonSerialize(using = LocalDateTimeSerializer.class)
private LocalDateTime date;