GenericJackson2JsonRedisSerializer Configuration - Spring Boot Example

Add spring-boot-starter-redis dependency to your pom file:

<dependency>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-redis</artifactId>
</dependency> 

Set Redis config in application.yml:

spring:

  redis:

    host: localhost

    port: 6379

Set Redis Template, Cache Manager and @EnableCaching:

@SpringBootApplication

@EnableCaching

public class SpringBootApplication {

  public static void main(String[] args) {

    SpringApplication.run(SpringBootApplication .class, args);

  }

  @Bean

  public RedisTemplate

    RedisTemplate

    redisTemplate.setConnectionFactory(jedisConnFactory);

    redisTemplate.setKeySerializer(new StringRedisSerializer());

    redisTemplate.setValueSerializer(new GenericJackson2JsonRedisSerializer());

    return redisTemplate;

  }

  @Bean

  public CacheManager cacheManager(RedisTemplate

    RedisCacheManager redisCacheManager = new RedisCacheManager(redisTemplate);

    redisCacheManager.setUsePrefix(true);

    Collection cacheNames = new ArrayList<>();

    cacheNames.add("user-accounts-cache");

    redisCacheManager.setCacheNames(cacheNames);

    Map expires = new HashMap<>();

    expires.put("accounts-cache", 30L);

    redisCacheManager.setExpires(expires);

    return redisCacheManager;

  }

}

Decorate method for caching;

@Cacheable(value = "user-accounts-cache")

public List getUserAccounts(String userId) {

         return accountDao.getAccounts(userId);

}