How can I configure Redis caching with Spring Boot. From what I have heard, it's just some changes in the application.properties file, but don't know exactly what.
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2 Answers
To use Redis caching in your Spring boot application all you need to do is set these in your application.properties file
spring.cache.type=redis
spring.redis.host=localhost //add host name here
spring.redis.port=6379
Add this dependency in your pom.xml
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
Additionally, you have to use the @EnableCaching on your main application class and use the @Cacheable annotation on the methods to use the Cache. That is all is needed to use redis in a Spring boot application. You can use it in any class by autowiring the CacheManager in this case RedisCacheManager.
@Autowired
RedisCacheManager redisCacheManager;
Comments
You can mention all the required properties that is hostname, port etc. in the application.properties file and then read from it.
@Configuration
@PropertySource("application.properties")
public class SpringSessionRedisConfiguration {
@Value("${redis.hostname}")
private String redisHostName;
@Value("${redis.port}")
private int redisPort;
@Bean
public static PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer() {
return new PropertySourcesPlaceholderConfigurer();
}
@Bean
JedisConnectionFactory jedisConnectionFactory() {
JedisConnectionFactory factory = new JedisConnectionFactory();
factory.setHostName(redisHostName);
factory.setPort(redisPort);
factory.setUsePool(true);
return factory;
}
@Bean
RedisTemplate<Object, Object> redisTemplate() {
RedisTemplate<Object, Object> redisTemplate = new RedisTemplate<Object, Object>();
redisTemplate.setConnectionFactory(jedisConnectionFactory());
return redisTemplate;
}
@Bean
RedisCacheManager cacheManager() {
RedisCacheManager redisCacheManager = new RedisCacheManager(redisTemplate());
return redisCacheManager;
}
}
4 Comments
Soumitri Pattnaik
I think, this is not the Spring Boot way. In Spring Boot we don't need to create all these cache manager and stuffs (from what I have read and heard)
Antariksh
I guess this gives you more flexibility in configuration.
Soumitri Pattnaik
that is true, but I need the Spring Boot way
Cory
did you find the spring boot way?