如何在Spring Boot和Spring Data中使用两个Cassandra数据源？

Question

Is there any way to connect a Spring Boot application to two different Cassandra data sources by using Spring Boot and Spring Data?

I tried to configure 2 different data sources but Spring Boot chooses the first one and ignores the other.

Thank you

Answer 1

Spring Boot supports out of the box only singleton data sources and it configures a single Session with a single CassandraTemplate .

Since Spring Data 2.0, CassandraTemplate supports a SessionFactory that can route calls to different Cassandra Session s. That's something you need to configure yourself:

@Configuration
class MyConfig {

  @Bean
  CassandraTemplate cassandraTemplate(CassandraConverter converter) {
    SessionFactory factory = …;
    return new CassandraTemplate(factory, converter);
  }
}

You might want to take a look into AbstractRoutingSessionFactory for building your own Session router.