我加上@Cacheable注解想让Redis缓存我从数据库取得的数据，但是报了以下错误。猜测是RedisTemplate配置中无法将jsonarray转换的问题，但我无法解决，希望各位能帮助我一下。
当我去掉@Cacheable注解时可正常返回json数据，数据类似：

{
    "result": true,
    "msg": "ok",
    "exp": [  <--猜测是这个jsonarray所导致的问题
        {
            "id": 1,
            "nickname": "管理员",
            "userName": "admin@test.com",
            "password": "4e4d8243d98598979d7bbfd75882a326cb669bae8dd4440e7cec58a4221d5535",
            "salt": "fDmxl2ggQ98hi8WdbDtKxK60LPRFTISS",
            "status": 1,
            "createAt": 1524013219000,
            "ip": "xxx.xxx.xxx.xxx",
            "avatar": "0/1.jpg",
            "likeCount": 999
        }
    ]
}

报错信息：

org.springframework.data.redis.serializer.SerializationException: Could not read JSON: Can not deserialize instance of com.kellen5l.experimentalplatform.entity.AccountEntity out of START_ARRAY token
 at [Source: [B@26191388; line: 1, column: 1]; nested exception is com.fasterxml.jackson.databind.JsonMappingException: Can not deserialize instance of com.kellen5l.experimentalplatform.entity.AccountEntity out of START_ARRAY token

RedisTemplate：

    @Bean
    public RedisTemplate<String, Object> accountRedisTemplate(
            RedisConnectionFactory redisConnectionFactory)
            throws UnknownHostException {
        RedisTemplate<String, Object> template = new RedisTemplate<String, Object>();
        template.setConnectionFactory(redisConnectionFactory);
        Jackson2JsonRedisSerializer<AccountEntity> jsonRedisSerializer = new Jackson2JsonRedisSerializer<AccountEntity>(AccountEntity.class);
        template.setDefaultSerializer(jsonRedisSerializer);
        return template;
    }
    @Bean
    public RedisCacheManager accountCacheManager(RedisTemplate<String, Object> accountRedisTemplate) {
        RedisCacheManager cacheManager = new RedisCacheManager(accountRedisTemplate);
        cacheManager.setUsePrefix(true);
        return cacheManager;
    }