spring-data-redis Jackson serialization - spring

Question

I'm attempting to use the Jackson serialization feature of spring-data-redis. I am building a ObjectMapper and using the GenericJackson2JsonRedisSerializer as the serializer for the redisTemplate:
#Configuration
public class SampleModule {
#Bean
public ObjectMapper objectMapper() {
return Jackson2ObjectMapperBuilder.json()
.serializationInclusion(JsonInclude.Include.NON_NULL) // Don’t include null values
.featuresToDisable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS) //ISODate
.build();
}
#Bean
public RedisTemplate getRedisTemplate(ObjectMapper objectMapper, RedisConnectionFactory redisConnectionFactory){
RedisTemplate redisTemplate = new RedisTemplate();
redisTemplate.setDefaultSerializer(new GenericJackson2JsonRedisSerializer(objectMapper));
redisTemplate.setConnectionFactory(redisConnectionFactory);
return redisTemplate;
}
}
I have a SampleBean I am attempting to save:
#RedisHash("sampleBean")
public class SampleBean {
#Id
String id;
String value;
Date date;
public SampleBean(String value, Date date) {
this.value = value;
this.date = date;
}
}
And a repository for that bean:
public interface SampleBeanRepository extends CrudRepository {
}
I am then trying to write the bean to Redis:
ConfigurableApplicationContext context = SpringApplication.run(SampleRedisApplication.class, args);
SampleBean helloSampleBean = new SampleBean("hello", new Date());
ObjectMapper objectMapper = context.getBean(ObjectMapper.class);
logger.info("Expecting date to be written as: " + objectMapper.writeValueAsString(helloSampleBean.date));
SampleBeanRepository repository = context.getBean(SampleBeanRepository.class);
repository.save(helloSampleBean);
context.close();
I expect the redisTemplate to use the Serializer to write the Date inside of the SampleBean as a Timestamp, however it is written as a long.
The relevant spring-data-redis reference: http://docs.spring.io/spring-data/data-redis/docs/current/reference/html/#redis:serializer
Full code sample: https://github.com/bandyguy/spring-redis-jackson-sample-broken

Answer 1

The serializer/mapper used by the template does not affect the one used by the repository since the repository directly operates upon the byte[] using Converter implementations for reading/writing data based on domain type metadata.
Please refer to the Object to Hash Mapping section of the reference manual for guidance how to write and register a custom Converter.

Answer 2

Have you tried disable serialization feature SerializationFeature.WRITE_DATES_AS_TIMESTAMPS?