使用Spring Boot时，Redis将对象设置为空json“{}”

Question

我正在尝试在redis上设置一个对象。 RedisTemplate配置如下所示。

@Bean
fun redisTemplate(): RedisTemplate<String, Any> {
    val redisTemplate = RedisTemplate<String, Any>()
    redisTemplate.connectionFactory = jedisConnectionFactory()
    redisTemplate.defaultSerializer = GenericJackson2JsonRedisSerializer()
    redisTemplate.keySerializer = StringRedisSerializer()
    redisTemplate.hashKeySerializer = GenericJackson2JsonRedisSerializer()
    redisTemplate.valueSerializer = GenericJackson2JsonRedisSerializer()

    redisTemplate.afterPropertiesSet()
    return redisTemplate
}

这是我的设定线

redisUtil.redisTemplate().opsForValue().set("CATEGORIES", tree)

结果是

127.0.0.1:6379> keys *
1) "CATEGORIES"
127.0.0.1:6379> GET CATEGORIES
"{}"
127.0.0.1:6379> 

Answer 1

如果要存储对象，可以使用哈希

Pet pet = new Pet();
pet.setHeight(10);
pet.setName("tommy");

ObjectMapper oMapper = new ObjectMapper();

template.opsForHash().putAll("pet", oMapper.convertValue(pet, Map.class));

Pet pet1 = oMapper.convertValue(template.opsForHash().entries("pet"), Pet.class);
System.out.println(pet1.getName());
System.out.println(pet1.getHeight());
System.out.println(pet1.getWeight());

RedisTemplate配置

@Bean
public RedisTemplate<String, Object> redisTemplate() {
RedisTemplate<String, Object> template = new RedisTemplate<>();
template.setKeySerializer(new StringRedisSerializer());
template.setValueSerializer(new GenericJackson2JsonRedisSerializer());
template.setHashKeySerializer(new StringRedisSerializer());
template.setHashValueSerializer(new GenericJackson2JsonRedisSerializer());
template.setConnectionFactory(jedisConnectionFactory());
template.setEnableTransactionSupport(true);
return template;
}

如果要将其存储为键值对

Pet pet = new Pet();
pet.setHeight(10);
pet.setName("tommy");

template.opsForValue().set("pettest", pet);
Pet pet2 = (Pet) template.opsForValue().get("pettest");
System.out.println("boo boo");
System.out.println(pet2.getName());

get pettest在redis {"@class":"com.cisco.rediscluster.Pet","name":"tommy","height":10}中的结果