How to use Redis Cache to store the data in java spring boot application?

Question

I have already a running instance of Redis Cache in AWS Account. How can I use the redis instance using the redis instance Endpoint in my java code to store the data.

I don't have any idea how to start with Redis Cache in java. Please help me out to resolve this.

• kgiannakakis: Start with github.com/redis/jedis

Answer 1

You can use spring-data-redis by including following dependency.

<dependency>
 <groupId>org.springframework.boot</groupId>
 <artifactId>spring-boot-starter-data-redis</artifactId>
 <version>2.2.6.RELEASE</version> 
</dependency>

Then specify properties as below:

spring.redis.database=0
spring.redis.host="Specify URL"
spring.redis.port=6379
spring.redis.password=mypass
spring.redis.timeout=60000

Then using RedisTemplate

@Autowired
private RedisTemplate<Long, Book> redisTemplate;
public void save(Book book) {
 redisTemplate.opsForValue().set(book.getId(), book);
}
public Book findById(Long id) {
 return redisTemplate.opsForValue().get(id);
}

• Kakashi: Thank you @shrm.
• Kakashi: I am trying this method which you given. In the application.properties what I have to fill in spring.redis.host="Specify URL", spring.redis.password=mypass. Which hostname and password I have to add here?
• shrm: @Kakashi The property name should give you a hint.