부트 개념과 활용-27.Redis(스프링 데이터)

in Back-end on Spring, Boot, Redis


스프링 데이터 9부: Redis

캐시, 메시지 브로커, 키/밸류 스토어 등으로 사용 가능.

의존성 추가

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

Redis 설치 및 실행 (도커)

  • docker run -p 6379:6379 –name redis_boot -d redis
  • docker exec -i -t redis_boot redis-cli

스프링 데이터 Redis

예제 코드

@RedisHash("accounts")
public class Account {

    @Id
    private String id;

    private String username;

    private String email;
...

public interface AccountRepository extends CrudRepository<Account, String> {
}

@Component
public class RedisRunner implements ApplicationRunner {

    @Autowired
    StringRedisTemplate redisTemplate;
    
    @Autowired
    AccountRepository accountRepository;

    @Override
    public void run(ApplicationArguments args) throws Exception {
        ValueOperations<String, String> values = redisTemplate.opsForValue();
        values.set("jaeuk", "me");
        values.set("springboot", "2.0");
        values.set("hello", "world");

        Account account = new Account();
        account.setEmail("jaeuk2274@gmail.com");
        account.setUsername("jaeuk");

        accountRepository.save(account);

        Optional<Account> byId = accountRepository.findById(account.getId());
        System.out.println(byId.get().getUsername());
        System.out.println(byId.get().getEmail());
    }
}

Redis 주요 커맨드

127.0.0.1:6379> keys *       
1) "accounts"
2) "hello"
3) "accounts:9318f778-b15c-4f3d-ae72-365e751849bc"
4) "jaeuk"
5) "springboot"
127.0.0.1:6379> get hello
"world"
127.0.0.1:6379> hget accounts:9318f778-b15c-4f3d-ae72-365e751849bc email
"jaeuk2274@gmail.com"
127.0.0.1:6379> hgetall accounts:9318f778-b15c-4f3d-ae72-365e751849bc
1) "_class"
2) "me.jaeuk.redis.account.Account"
3) "id"
4) "9318f778-b15c-4f3d-ae72-365e751849bc"
5) "username"
6) "jaeuk"
7) "email"
8) "jaeuk2274@gmail.com"
127.0.0.1:6379>

커스터마이징 spring.redis.*
ex.

#spring.redis.url=



© 2019. by jaeuk