Can I let spring-session used a standalone redis?

Question

I have built up a redis server, I want to know whether I can make spring-session use the existed redis server instead of embed its redis-server?

Answer 1

Yes Spring Session can and should use an existing Redis Server. This is the primary way to deploy to production. I have provided a few examples below:

Spring Boot

Taking the Spring Boot Sample and converting it to use an external Redis Server can be done by:

• Removing the @EmbeddedRedisServer annotation

• Configuring the Redis Server Location For example, you might provide the following properties in your application.properties:

  spring.redis.host=example.com spring.redis.password=secret spring.redis.port=6379

Other Samples

The other samples are quite similar to use an external Redis instance. For example, to change the httpsession sample to use an external Redis:

• Remove @EnableEmbeddedRedis
• Update your RedisConnectionFactory Bean definition to point to your Redis server

For example:

@Bean
public JedisConnectionFactory connectionFactory() {
    JedisConnectionFactory connection = new JedisConnectionFactory();
    connection.setPort(6379);
    connection.setHostName("example.com");
    connection.setPassword("secret");
    return connection;
}