springboot访问redis序列化问题

     jackson2JsonRedisSerializer.setObjectMapper(objectMapper);

        redisTemplate.setKeySerializer(new StringRedisSerializer());

        redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);
        //  redisTemplate.setValueSerializer(new FastJsonRedisSerializer<>(Object.class));
        redisTemplate.setHashKeySerializer(new StringRedisSerializer());
        redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer);