How can we stop spring boot data cassandra from connecting to localhost?

问题

We are using Spring data - cassandra and when we run the application without providing configuration, spring boot tries to connect to localhost. Is there a way to stop spring boot from auto connecting?

Thanks in advance :)

回答1:

You have multiple ways to achieve that but none of them is just a boolean flag:

1. Remove the Cassandra dependency, if you can afford dependency exclusion

2. Provide @Lazy Session/CassandraTemplate @Bean's yourself:

   @Configuration
   public class MyCassandraConfiguration extends CassandraDataAutoConfiguration {
   
       public MyCassandraConfiguration(BeanFactory beanFactory, CassandraProperties properties, Cluster cluster, Environment environment) {
           super(beanFactory, properties, cluster, environment);
       }
   
       @Override
       @Bean
       @Lazy
       public CassandraSessionFactoryBean session(CassandraConverter converter) throws Exception {
           return super.session(converter);
       }
   
       @Bean
       @Lazy
       @Override
       public CassandraTemplate cassandraTemplate(Session session, CassandraConverter converter) throws Exception {
           return super.cassandraTemplate(session, converter);
       }
   }
   

   Lazy beans are initialized the first time they are used.

3. Exclude the CassandraAutoConfiguration. Depending on your setup even more auto-configurations. This approach is rather invasive as required dependencies might get not initialized.

来源：https://stackoverflow.com/questions/41281144/how-can-we-stop-spring-boot-data-cassandra-from-connecting-to-localhost