Spring Data Redis CRUD Operations example with Spring Boot

https://grokonez.com/spring-framework/spring-data/spring-data-redis-example-spring-boot-redis-example

Spring Data Redis CRUD Operations example with Spring Boot

Redis is an open-source, in-memory key-value data store, used as a database, cache, and message broker. In this tutorial, we're gonna look at how to do Redis CRUD Operations with Spring Boot using Spring Data Redis.

Related Post: Spring Data Redis Messaging – PubSub example | Spring Boot

I. Technology

• Java 1.8
• Maven 3.3.9
• Spring Tool Suite – Version 3.9.0.RELEASE
• Spring Boot: 1.5.9.RELEASE

  II. Spring Data Redis

  1. Maven Dependency

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

  2. Redis Configuration

  We use Jedis as a Redis client to define and establish the connection between our Spring Boot application and the Redis server instance.

  @Bean
  JedisConnectionFactory jedisConnectionFactory() {
  return new JedisConnectionFactory();
  }

@Bean
public RedisTemplate<String, Object> redisTemplate() {
final RedisTemplate<String, Object> template = new RedisTemplate<String, Object>();
template.setConnectionFactory(jedisConnectionFactory());
template.setValueSerializer(new GenericToStringSerializer<Object>(Object.class));
return template;
}
If we wanna configure connection details, just modify the jedisConnectionFactory configuration:

@Bean
JedisConnectionFactory jedisConnectionFactory() {
    JedisConnectionFactory jedisConFactory = new JedisConnectionFactory();
    jedisConFactory.setHostName("localhost");
    jedisConFactory.setPort(6379);
    return jedisConFactory;
}

3. Redis CRUD Operations with RedisTemplate

RedisTemplate provides DefaultHashOperations instance that can do hash-related operations for data manipulation.
To get DefaultHashOperations instance, we call RedisTemplate.opsForHash():

More at:

https://grokonez.com/spring-framework/spring-data/spring-data-redis-example-spring-boot-redis-example

Spring Data Redis CRUD Operations example with Spring Boot