SpirngBoot에서 Redis 연동(Jedis)

Gradle

compile('org.springframework.boot:spring-boot-starter-data-redis')

compile group: 'redis.clients', name: 'jedis', version: '2.9.0'

application.properties 설정

spring.cache.type=redis

spring.redis.host = 127.0.0.1 

spring.redis.password= 

spring.redis.port=6379

RedisConfig 클래스 생성

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package com.example.service.redis;   import org.springframework.beans.factory.annotation.Value; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.ComponentScan; import org.springframework.context.annotation.Configuration; import org.springframework.data.redis.connection.jedis.JedisConnectionFactory; import org.springframework.data.redis.core.RedisTemplate; import org.springframework.data.redis.serializer.StringRedisSerializer;   import redis.clients.jedis.JedisPoolConfig;   @Configuration @ComponentScan("com.spring.redis") public class RedisConfig {       private @Value("${spring.redis.host}") String redisHost;     private @Value("${spring.redis.port}") int redisPort;     private @Value("${spring.redis.password}") String password;       @Bean     public JedisPoolConfig jedisPoolConfig() {         JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();         jedisPoolConfig.setMaxIdle(30);         jedisPoolConfig.setMinIdle(10);         jedisPoolConfig.setTestOnBorrow(true);         jedisPoolConfig.setTestOnReturn(true);         return jedisPoolConfig;     }       @SuppressWarnings("deprecation")     @Bean     public JedisConnectionFactory redisConnectionFactory() {         JedisConnectionFactory jedisConnectionFactory = new JedisConnectionFactory(jedisPoolConfig());         jedisConnectionFactory.setHostName(redisHost);         jedisConnectionFactory.setPort(redisPort);         jedisConnectionFactory.setPassword(password);         jedisConnectionFactory.setUsePool(true);         return jedisConnectionFactory;     }       @Bean     public RedisTemplate<String, Object> redisTemplate() {         RedisTemplate<String, Object> template = new RedisTemplate<>();         template.setConnectionFactory(redisConnectionFactory());         template.setKeySerializer(new StringRedisSerializer());         template.setValueSerializer(new StringRedisSerializer());         template.setHashKeySerializer(new StringRedisSerializer());         template.setHashValueSerializer(new StringRedisSerializer());         template.setEnableDefaultSerializer(false);         template.setEnableTransactionSupport(true);         return template;     } } Colored by Color Scripter

cs

Redis Client에서 가장 많이 사용되는 오픈소스는 Jedis/lettuce/Redisson  중 Jedis이다.

많이 쓴다는 것은 곧 그만큼 사용하기 쉽고 레퍼런스가 많다는 의미이다.

실제로 Jedis를 통해 손쉽게 사용할 수 있었다.

Spring에서 RedisTemplate을 통해 데이터에 엑세스할 뿐 아니라 ConnectionPool의 자원 관리 또한 알아서 해준다.

=> 실제론 JedisConnectionFactory를 통해서 수행

RedisTemplate을 통해 다음과 같은 데이터 타입을 다룰 수 있다.

String

@Resource(name="redisTemplate")
private ValueOperations<String, String> valueOperations;

Set

@Resource(name="redisTemplate")
private SetOperations<String, String> setOperations;

Sorted Set

@Resource(name="redisTemplate")
private ZSetOperations<String, String> zSetOperations;

Hashes

@Resource(name="redisTemplate")
private HashOperations<String, String, String> hashOperations;

List

@Resource(name="redisTemplate")
private ListOperations<String, String> listOperations;